1
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Swinbourn R, Li C, Wang F. A Comprehensive Review on Biomethane Production from Biogas Separation and its Techno-Economic Assessments. CHEMSUSCHEM 2024; 17:e202400779. [PMID: 38958605 DOI: 10.1002/cssc.202400779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 07/02/2024] [Accepted: 07/03/2024] [Indexed: 07/04/2024]
Abstract
Biogas offers significant benefits as a renewable energy source, contributing to decarbonization, waste management, and economic development. This comprehensive review examines the historical, technological, economic, and global aspects of biomethane production, focusing on the key players such as China, the European Union, and North America, and associated opportunities and challenges as well as future prospects from an Australia perspective. The review begins with an introduction to biogas, detailing its composition, feedstock sources, historical development, and anaerobic digestion (AD) process. Subsequently, it delves into major biomethane production technologies, including physicochemical absorption, high-pressure water scrubbing (HPWS), amine scrubbing (AS), pressure swing adsorption (PSA), membrane permeation/separation (MP), and other technologies including organic solvent scrubbing and cryogenic separation. The study also discusses general guidelines of techno-economic assessments (TEAs) regarding biomethane production, outlining the methodologies, inventory analysis, environmental life cycle assessment (LCA), and estimated production costs. Challenges and opportunities of biogas utilization in Australia are explored, highlighting and referencing global projections, polarization in production approaches, circularity in waste management, and specific considerations for Australia. The review concludes discussing future perspectives for biomethane, emphasizing the importance of technological advancements, policy support, and investment in realizing its full potential for sustainable energy and waste management solutions.
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Affiliation(s)
- Ross Swinbourn
- Department of Chemistry and Biotechnology, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, 3122, Victoria, Australia
- Victorian Hydrogen Hub, Swinburne University of Technology, Melbourne, 3122, Victoria, Australia
- CSIRO Energy, 71 Normandy Road, Clayton North, 3169, Victoria, Australia
| | - Chaoen Li
- CSIRO Energy, 71 Normandy Road, Clayton North, 3169, Victoria, Australia
- Research Institute for Carbon Materials and Hydrogen Technologies, Wenzhou University, Wenzhou, 325206, Zhejiang Province, The PR China
| | - Feng Wang
- Department of Chemistry and Biotechnology, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, 3122, Victoria, Australia
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2
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Xi R, Liu H, Liu X, Zhao X. Predicting and screening high-performance polyimide membranes using negative correlation based deep ensemble methods. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:5845-5863. [PMID: 39145470 DOI: 10.1039/d4ay01160k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Polyimide polymer membranes have become critical materials in gas separation and storage applications due to their high selectivity and excellent permeability. However, with over 107 known types of polyimides, relying solely on experimental research means potential high-performance candidates are likely to be overlooked. This study employs a deep learning method optimized by negative correlation ensemble techniques to predict the gas permeability and selectivity of polyimide structures, enabling rapid and efficient material screening. We propose a deep neural network model based on negative correlation deep ensemble methods (DNN-NCL), using Morgan molecular fingerprints as input. The DNN-NCL model achieves an R2 value of approximately 0.95 on the test set, which is a 4% improvement over recent model performance, and effectively mitigates overfitting with a maximum discrepancy of less than 0.03 between the training and test sets. High-throughput screening of over 8 million hypothetical polymers identified hundreds of promising candidates for gas separation membranes, with 14 structures exceeding the Robeson upper bound for CO2/N2 separation. Visualization of high-throughput predictions shows that although the Robeson upper bound was never explicitly used as a model constraint, the majority of predictions are compressed below this limit, demonstrating the deep learning model's ability to reflect real-world physical conditions. Reverse analysis of model predictions using SHAP analysis achieved interpretability of the deep learning model's predictions and identified three key functional groups deemed important by the deep neural network for gas permeability: carbonyl, thiophene, and ester groups. This established a bridge between the structure and properties of polyimide materials. Additionally, we confirmed that two polyimide structures predicted by the model to have excellent CO2/N2 selectivity, namely 6-methylpyrimidin-5-amine and 1,4,5,6-tetrahydropyrimidin-2-amine, have been experimentally validated in previous studies. This research demonstrates the feasibility of using deep learning methods to explore the vast chemical space of polyimides, providing a powerful tool for discovering high-performance gas separation membranes.
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Affiliation(s)
- Ruochen Xi
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang, China.
| | - Hongjing Liu
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang, China.
| | - Xueli Liu
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang, China.
| | - Xu Zhao
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang, China.
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3
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Jonnalagedda A, Kuncharam BVR. Study of mixed matrix membranes with in situ synthesized zeolite imidazolate frameworks (ZIF-8, ZIF-67) in polyethersulfone polymer for CO 2/CH 4 separation. RSC Adv 2024; 14:27074-27085. [PMID: 39193281 PMCID: PMC11348850 DOI: 10.1039/d4ra04400b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Accepted: 08/20/2024] [Indexed: 08/29/2024] Open
Abstract
Biogas, produced from anaerobic digestion, is a sustainable and renewable energy source. To upgrade biogas to Bio-CNG, CO2 must be removed from the raw mixture. Membrane separation is an economical process for the removal of CO2, and mixed matrix membranes (MMMs) are being explored for CO2/CH4 separation. MMMs are fabricated using techniques such as in situ techniques to overcome research gaps, such as in filler agglomeration and filler-polymer interfaces. In this work, MMMs were fabricated using the in situ growth of ZIF-8 and ZIF-67 in polyethersulfone (PES) and compared with traditional filler dispersion of ZIF-8 and ZIF-67. The fabricated MMMs were characterized and tested for gas permeation using a model biogas. Fourier-transform infrared (FTIR) spectroscopy and Field Emission Scanning Electron Microscopy (FESEM) analysis were conducted to confirm in situ synthesis of ZIF-8 and ZIF-67. CO2 permeability of in situ ZIF-8 and ZIF-67-based MMMs have enhanced to 84.5 Barrer and 78.8 Barrer, respectively, compared to pure PES membrane, which is around 25 Barrer. Similarly, ZIF-8 and ZIF-67-based traditional MMMs have shown an increase in the CO2 permeability of 75.6 Barrer and 68 Barrer, respectively. Additionally, the selectivity for CO2/CH4 separation increased for some of the prepared MMMs, demonstrating the effectiveness of the in situ fabrication method.
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Affiliation(s)
- Aditya Jonnalagedda
- Department of Chemical Engineering, Birla Institute of Technology & Science, Pilani Pilani Campus Rajasthan 333031 India +91-1596255839
| | - Bhanu Vardhan Reddy Kuncharam
- Department of Chemical Engineering, Birla Institute of Technology & Science, Pilani Pilani Campus Rajasthan 333031 India +91-1596255839
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4
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Alkandari S, Ching M, Lightfoot JC, Berri N, Leese HS, Castro-Dominguez B. Recycling and 3D-Printing Biodegradable Membranes for Gas Separation-toward a Membrane Circular Economy. ACS APPLIED ENGINEERING MATERIALS 2024; 2:1515-1525. [PMID: 38962722 PMCID: PMC11217943 DOI: 10.1021/acsaenm.4c00060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 07/05/2024]
Abstract
Polymer membranes employed in gas separation play a pivotal role in advancing environmental sustainability, energy production, and gas purification technologies. Despite their significance, the current design and manufacturing of these membranes lack cradle-to-cradle approaches, contributing to plastic waste pollution. This study explores emerging solutions, including the use of biodegradable biopolymers such as polyhydroxybutyrate (PHB) and membrane recycling, with a focus on the specific impact of mechanical recycling on the performance of biodegradable gas separation membranes. This research represents the first systematic exploration of recycling biodegradable membranes for gas separation. Demonstrating that PHB membranes can be recycled and remanufactured without solvents using hot-melt extrusion and 3D printing, the research highlights PHB's promising performance in developing more sustainable CO2 separations, despite an increase in gas permeability with successive recycling steps due to reduced polymer molecular weight. The study emphasizes the excellent thermal, chemical, and mechanical stability of PHB membranes, albeit with a marginal reduction in gas selectivity upon recycling. However, limitations in PHB's molecular weight affecting extrudability and processability restrict the recycling to three cycles. Anticipating that this study will serve as a foundational exploration, we foresee more sophisticated recycling studies for gas separation membranes, paving the way for a circular economy in future membrane technologies.
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Affiliation(s)
| | - Matthew Ching
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
| | - Jasmine C. Lightfoot
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
- Centre for Digital Manufacturing
and Design (dMaDe), University of Bath, Bath BA2 7AY, U.K.
| | - Nael Berri
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
- Centre
for Bioengineering and Biomedical Technologies, University of Bath, Bath BA2 7AY, U.K.
| | - Hannah S. Leese
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
- Centre
for Bioengineering and Biomedical Technologies, University of Bath, Bath BA2 7AY, U.K.
| | - Bernardo Castro-Dominguez
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
- Centre for Digital Manufacturing
and Design (dMaDe), University of Bath, Bath BA2 7AY, U.K.
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5
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Mahnaee S, López MJ, Alonso JA. Separation of CO 2/CH 4 gas mixtures using nanoporous graphdiyne and boron-graphdiyne membranes: influence of the pore size. Phys Chem Chem Phys 2024; 26:15916-15926. [PMID: 38805377 DOI: 10.1039/d4cp00872c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Nanoporous carbon-based membranes have garnered significant interest in gas separation processes owing to their distinct structure and properties. We have investigated the permeation and separation of the mixture of CO2 and CH4 gases through membranes formed by thin layers of porous graphdiyne (GDY) and boron graphdiyne (BGDY) using Density Functional Theory. The main goal is to investigate the effect of the pore size. The interaction of CO2 and CH4 with GDY and BGDY is weak, and this guarantees that those molecules will not be chemically trapped on the surface of the porous membranes. The permeation and separation of CO2 and CH4 through the membranes are significantly influenced by the size of the pores in the layers. The size of the hexagonal pores in BGDY is large in comparison to the size of the two molecules, and the passing of these molecules through the pores is easy because there is no barrier. Then, BGDY is not able to separate CO2 and CH4. In sharp contrast, the size of the triangular pores in GDY is smaller, comparable to the diameter of the two molecules, and this raises an activation barrier for the crossing of the molecules. The height of the barrier for CO2 is one half of that for CH4, the reason being that CO2 is a linear molecule which adopts an orientation perpendicular to the GDY layer to cross the pores, while CH4 has a spherical-like shape, and cannot profit from a favorable orientation. The calculated permeances favor the passing of CO2 through the GDY membrane, and the calculated selectivity for CO2/CH4 mixtures is large. This makes GDY a very promising membrane material for the purification of commercial gases and for the capture of the CO2 component in those gases.
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Affiliation(s)
- Sahar Mahnaee
- Departamento de Física Teórica, Atómica y Óptica, Universidad de Valladolid, 47011 Valladolid, Spain.
| | - María J López
- Departamento de Física Teórica, Atómica y Óptica, Universidad de Valladolid, 47011 Valladolid, Spain.
| | - Julio A Alonso
- Departamento de Física Teórica, Atómica y Óptica, Universidad de Valladolid, 47011 Valladolid, Spain.
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6
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Tomczak W, Gryta M, Daniluk M, Żak S. Biogas Upgrading Using a Single-Membrane System: A Review. MEMBRANES 2024; 14:80. [PMID: 38668108 PMCID: PMC11051867 DOI: 10.3390/membranes14040080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024]
Abstract
In recent years, the use of biogas as a natural gas substitute has gained great attention. Typically, in addition to methane (CH4), biogas contains carbon dioxide (CO2), as well as small amounts of impurities, e.g., hydrogen sulfide (H2S), nitrogen (N2), oxygen (O2) and volatile organic compounds (VOCs). One of the latest trends in biogas purification is the application of membrane processes. However, literature reports are ambiguous regarding the specific requirement for biogas pretreatment prior to its upgrading using membranes. Therefore, the main aim of the present study was to comprehensively examine and discuss the most recent achievements in the use of single-membrane separation units for biogas upgrading. Performing a literature review allowed to indicate that, in recent years, considerable progress has been made on the use of polymeric membranes for this purpose. For instance, it has been documented that the application of thin-film composite (TFC) membranes with a swollen polyamide (PA) layer ensures the successful upgrading of raw biogas and eliminates the need for its pretreatment. The importance of the performed literature review is the inference drawn that biogas enrichment performed in a single step allows to obtain upgraded biogas that could be employed for household uses. Nevertheless, this solution may not be sufficient for obtaining high-purity gas at high recovery efficiency. Hence, in order to obtain biogas that could be used for applications designed for natural gas, a membrane cascade may be required. Moreover, it has been documented that a significant number of experimental studies have been focused on the upgrading of synthetic biogas; meanwhile, the data on the raw biogas are very limited. In addition, it has been noted that, although ceramic membranes demonstrate several advantages, experimental studies on their applications in single-membrane systems have been neglected. Summarizing the literature data, it can be concluded that, in order to thoroughly evaluate the presented issue, the long-term experimental studies on the upgrading of raw biogas with the use of polymeric and ceramic membranes in pilot-scale systems are required. The presented literature review has practical implications as it would be beneficial in supporting the development of membrane processes used for biogas upgrading.
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Affiliation(s)
- Wirginia Tomczak
- Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, ul. Seminaryjna 3, 85-326 Bydgoszcz, Poland; (M.D.); (S.Ż.)
| | - Marek Gryta
- Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, ul. Pułaskiego 10, 70-322 Szczecin, Poland
| | - Monika Daniluk
- Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, ul. Seminaryjna 3, 85-326 Bydgoszcz, Poland; (M.D.); (S.Ż.)
| | - Sławomir Żak
- Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, ul. Seminaryjna 3, 85-326 Bydgoszcz, Poland; (M.D.); (S.Ż.)
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7
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Tanis I, Brown D, Neyertz S, Vaidya M, Ballaguet JP, Duval S, Bahamdan A. A Molecular Dynamics Study of Single-Gas and Mixed-Gas N 2 and CH 4 Transport in Triptycene-Based Polyimide Membranes. Polymers (Basel) 2023; 15:3811. [PMID: 37765665 PMCID: PMC10535442 DOI: 10.3390/polym15183811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/04/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Fluorinated polyimides incorporated with triptycene units have gained growing attention over the last decade since they present potentially interesting selectivities and a higher free volume with respect to their triptycene-free counterparts. This work examines the transport of single-gas and mixed-gas N2 and CH4 in the triptycene-based 6FDA-BAPT homopolyimide and in a block 15,000 g mol-1/15,000 g mol-1 6FDA-mPDA/BAPT copolyimide by using molecular dynamics (MD) simulations. The void-space analyses reveal that, while the free volume consists of small-to-medium holes in the 6FDA-BAPT homopolyimide, there are more medium-to-large holes in the 6FDA-mPDA/BAPT copolyimide. The single-gas sorption isotherms for N2 and CH4 over the 0-70 bar range at 338.5 K show that both gases are more soluble in the block copolyimide, with a higher affinity for methane. CH4 favours sites with the most favourable energetic interactions, while N2 probes more sites in the matrices. The volume swellings remain limited since neither N2 nor CH4 plasticise penetrants. The transport of a binary-gas 2:1 CH4/N2 mixture is also examined in both polyimides under operating conditions similar to those used in current natural gas processing, i.e., at 65.5 bar and 338.5 K. In the mixed-gas simulations, the solubility selectivities in favour of CH4 are enhanced similarly in both matrices. Although diffusion is higher in 6FDA-BAPT/6FDA-mPDA, the diffusion selectivities are also close. Both triptycene-based polyimides under study favour, to a similar extent, the transport of methane over that of nitrogen under the conditions studied.
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Affiliation(s)
- Ioannis Tanis
- Univ. Savoie Mont Blanc, Univ. Grenoble Alpes, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France; (D.B.); (S.N.)
| | - David Brown
- Univ. Savoie Mont Blanc, Univ. Grenoble Alpes, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France; (D.B.); (S.N.)
| | - Sylvie Neyertz
- Univ. Savoie Mont Blanc, Univ. Grenoble Alpes, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France; (D.B.); (S.N.)
| | - Milind Vaidya
- Saudi Aramco, Research & Development Center, P.O. Box 62, Dhahran 31311, Saudi Arabia; (M.V.); (J.-P.B.); (S.D.); (A.B.)
| | - Jean-Pierre Ballaguet
- Saudi Aramco, Research & Development Center, P.O. Box 62, Dhahran 31311, Saudi Arabia; (M.V.); (J.-P.B.); (S.D.); (A.B.)
| | - Sebastien Duval
- Saudi Aramco, Research & Development Center, P.O. Box 62, Dhahran 31311, Saudi Arabia; (M.V.); (J.-P.B.); (S.D.); (A.B.)
| | - Ahmad Bahamdan
- Saudi Aramco, Research & Development Center, P.O. Box 62, Dhahran 31311, Saudi Arabia; (M.V.); (J.-P.B.); (S.D.); (A.B.)
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8
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Zhu Z, Parker ST, Forse AC, Lee JH, Siegelman RL, Milner PJ, Tsai H, Ye M, Xiong S, Paley MV, Uliana AA, Oktawiec J, Dinakar B, Didas SA, Meihaus KR, Reimer JA, Neaton JB, Long JR. Cooperative Carbon Dioxide Capture in Diamine-Appended Magnesium-Olsalazine Frameworks. J Am Chem Soc 2023; 145:17151-17163. [PMID: 37493594 PMCID: PMC10416307 DOI: 10.1021/jacs.3c03870] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Indexed: 07/27/2023]
Abstract
Diamine-appended Mg2(dobpdc) (dobpdc4- = 4,4'-dioxidobiphenyl-3,3'-dicarboxylate) metal-organic frameworks have emerged as promising candidates for carbon capture owing to their exceptional CO2 selectivities, high separation capacities, and step-shaped adsorption profiles, which arise from a unique cooperative adsorption mechanism resulting in the formation of ammonium carbamate chains. Materials appended with primary,secondary-diamines featuring bulky substituents, in particular, exhibit excellent stabilities and CO2 adsorption properties. However, these frameworks display double-step adsorption behavior arising from steric repulsion between ammonium carbamates, which ultimately results in increased regeneration energies. Herein, we report frameworks of the type diamine-Mg2(olz) (olz4- = (E)-5,5'-(diazene-1,2-diyl)bis(2-oxidobenzoate)) that feature diverse diamines with bulky substituents and display desirable single-step CO2 adsorption across a wide range of pressures and temperatures. Analysis of CO2 adsorption data reveals that the basicity of the pore-dwelling amine─in addition to its steric bulk─is an important factor influencing adsorption step pressure; furthermore, the amine steric bulk is found to be inversely correlated with the degree of cooperativity in CO2 uptake. One material, ee-2-Mg2(olz) (ee-2 = N,N-diethylethylenediamine), adsorbs >90% of the CO2 from a simulated coal flue stream and exhibits exceptional thermal and oxidative stability over the course of extensive adsorption/desorption cycling, placing it among top-performing adsorbents to date for CO2 capture from a coal flue gas. Spectroscopic characterization and van der Waals-corrected density functional theory calculations indicate that diamine-Mg2(olz) materials capture CO2 via the formation of ammonium carbamate chains. These results point more broadly to the opportunity for fundamentally advancing materials in this class through judicious design.
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Affiliation(s)
- Ziting Zhu
- Department
of Materials Science and Engineering, University
of California, Berkeley, California94720, United States
- Department
of Chemistry, University of California, Berkeley, California94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Surya T. Parker
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Alexander C. Forse
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California94720, United States
- Department
of Chemistry, University of California, Berkeley, California94720, United States
| | - Jung-Hoon Lee
- Department
of Physics, University of California, Berkeley, California94720, United States
- Molecular
Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Rebecca L. Siegelman
- Department
of Chemistry, University of California, Berkeley, California94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Phillip J. Milner
- Department
of Chemistry, University of California, Berkeley, California94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Hsinhan Tsai
- Department
of Chemistry, University of California, Berkeley, California94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Mengshan Ye
- Department
of Chemistry, University of California, Berkeley, California94720, United States
| | - Shuoyan Xiong
- Department
of Chemistry, University of California, Berkeley, California94720, United States
| | - Maria V. Paley
- Department
of Chemistry, University of California, Berkeley, California94720, United States
| | - Adam A. Uliana
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Julia Oktawiec
- Department
of Chemistry, University of California, Berkeley, California94720, United States
| | - Bhavish Dinakar
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Stephanie A. Didas
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Katie R. Meihaus
- Department
of Chemistry, University of California, Berkeley, California94720, United States
| | - Jeffrey A. Reimer
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California94720, United States
| | - Jeffrey B. Neaton
- Department
of Physics, University of California, Berkeley, California94720, United States
- Molecular
Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jeffrey R. Long
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California94720, United States
- Department
of Chemistry, University of California, Berkeley, California94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
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9
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Nouhou Moussa AW, Sawadogo B, Konate Y, Thianhoun B, Sidibe SDS, Heran M. Influence of Solid Retention Time on Membrane Fouling and Biogas Recovery in Anerobic Membrane Bioreactor Treating Sugarcane Industry Wastewater in Sahelian Climate. MEMBRANES 2023; 13:710. [PMID: 37623771 PMCID: PMC10456350 DOI: 10.3390/membranes13080710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/20/2023] [Accepted: 06/04/2023] [Indexed: 08/26/2023]
Abstract
Sugarcane industries produce wastewater loaded with various pollutants. For reuse of treated wastewater and valorization of biogas in a Sahelian climatic context, the performance of an anaerobic membrane bioreactor was studied for two solid retention times (40 days and infinity). The pilot was fed with real wastewater from a sugarcane operation with an organic load ranging from 15 to 22 gCOD/L/d for 353 days. The temperature in the reactor was maintained at 35 °C. Acclimatization was the first stage during which suspended solids (SS) and volatile suspended solids (VSS) evolved from 9 to 13 g/L and from 5 to 10 g/L respectively, with a VSS/SS ratio of about 80%. While operating the pilot at a solid retention time (SRT) of 40 days, the chemical oxygen demand (COD) removal efficiency reached 85%, and the (VSS)/(TSS) ratio was 94% in the reactor. At infinity solid retention time, these values were 96% and 80%, respectively. The 40-day solid retention time resulted in a change in transmembrane pressure (TMP) from 0.0812 to 2.18 bar, with a maximum methane production of 0.21 L/gCOD removed. These values are lower than those observed at an infinite solid retention time, at which the maximum methane production of 0.29 L/gCOD was achieved, with a corresponding transmembrane pressure variation of up to 3.1 bar. At a shorter solid retention time, the fouling seemed to decrease with biogas production. However, we note interesting retention rates of over 95% for turbidity.
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Affiliation(s)
- Abdoul Wahab Nouhou Moussa
- Laboratoire Eaux Hydro-Systèmes et Agriculture (LEHSA), Institut International d’Ingénierie de l’Eau et de l’Environnement (2iE), Rue de la science, Ouagadougou 01 BP 594, Burkina Faso; (B.S.); (Y.K.); (B.T.)
| | - Boukary Sawadogo
- Laboratoire Eaux Hydro-Systèmes et Agriculture (LEHSA), Institut International d’Ingénierie de l’Eau et de l’Environnement (2iE), Rue de la science, Ouagadougou 01 BP 594, Burkina Faso; (B.S.); (Y.K.); (B.T.)
| | - Yacouba Konate
- Laboratoire Eaux Hydro-Systèmes et Agriculture (LEHSA), Institut International d’Ingénierie de l’Eau et de l’Environnement (2iE), Rue de la science, Ouagadougou 01 BP 594, Burkina Faso; (B.S.); (Y.K.); (B.T.)
| | - Brony Thianhoun
- Laboratoire Eaux Hydro-Systèmes et Agriculture (LEHSA), Institut International d’Ingénierie de l’Eau et de l’Environnement (2iE), Rue de la science, Ouagadougou 01 BP 594, Burkina Faso; (B.S.); (Y.K.); (B.T.)
| | - Sayon dit Sadio Sidibe
- Laboratoire Energies Renouvelable et Efficacité Energétique (LaBEREE), Institut International d’Ingénierie de l’Eau et de l’Environnement (2iE), Rue de la science, Ouagadougou 01 BP 194, Burkina Faso;
| | - Marc Heran
- Institut Européen des Membranes (IEM), UMR-5635, Université de Montpellier, CNRS, Place Eugène Bataillon, CEDEX 5, 34095 Montpellier, France;
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10
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Mukti NIF, Ariyanto T, Sediawan WB, Prasetyo I. Efficacy of modified carbon molecular sieve with iron oxides or choline chloride-based deep eutectic solvent for the separation of CO 2/CH 4. RSC Adv 2023; 13:23158-23168. [PMID: 37533783 PMCID: PMC10392867 DOI: 10.1039/d3ra02890a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 07/15/2023] [Indexed: 08/04/2023] Open
Abstract
It is necessary to separate CO2 from biogas to improve its quality for the production of biomethane. Herein, an improvement in the separation of CO2/CH4via adsorption was achieved by modifying the surface of CMS. The surface modification of CMS was performed by impregnation with metal oxide (Fe3O4) and N-doping (DES-[ChCl:Gly]). Subsequently, the efficacy of the surface-modified CMS was investigated. This involved CMS modification, material characterization, and performance analysis. The uptake of CO2 by CMS-DES-[ChCl:Gly] and CMS-Fe3O4 was comparable; however, their performance for the separation of CO2/CH4 was different. Consequently, CMS-DES-[ChCl:Gly] and CMS-Fe3O4 exhibited ca. 1.6 times enhanced CO2 uptake capacity and ca. 1.70 times and 1.55 times enhanced CO2/CH4 separation, respectively. Also, both materials exhibited similar repeatability. However, CMS-DES-[ChCl:Gly] was more difficult to regenerate than CMS-Fe3O4, which is due to the higher adsorption heat value of the former (59.5 kJ).
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Affiliation(s)
- Nur Indah Fajar Mukti
- Department of Chemical Engineering, Faculty of Engineering, Universitas Gadjah Mada Yogyakarta 55281 Indonesia
- Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Islam Indonesia Yogyakarta 55584 Indonesia
- Carbon Material Research Group, Department of Chemical Engineering, Universitas Gadjah Mada Yogyakarta 55281 Indonesia
| | - Teguh Ariyanto
- Department of Chemical Engineering, Faculty of Engineering, Universitas Gadjah Mada Yogyakarta 55281 Indonesia
- Carbon Material Research Group, Department of Chemical Engineering, Universitas Gadjah Mada Yogyakarta 55281 Indonesia
| | - Wahyudi Budi Sediawan
- Department of Chemical Engineering, Faculty of Engineering, Universitas Gadjah Mada Yogyakarta 55281 Indonesia
| | - Imam Prasetyo
- Department of Chemical Engineering, Faculty of Engineering, Universitas Gadjah Mada Yogyakarta 55281 Indonesia
- Carbon Material Research Group, Department of Chemical Engineering, Universitas Gadjah Mada Yogyakarta 55281 Indonesia
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11
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François M, Lin KS, Rachmadona N, Khoo KS. Advancement of biochar-aided with iron chloride for contaminants removal from wastewater and biogas production: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 874:162437. [PMID: 36858210 DOI: 10.1016/j.scitotenv.2023.162437] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/16/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
The use of fossil fuels, emission of greenhouse gases (GHG) into the atmosphere, and waste pose a problem to the environment and public health that urgently needs to be dealt with. Among numerous chemical activating agents that can be added to anaerobic digestion (AD) to enhance nutrient removal and increase the quality and quantity of biomethane, iron chloride (FeCl3) is the one that has the lowest cost and is the most environmentally friendly. This state-of-the-art review aims to revise the influence of FeCl3 on the Brunauer-Emmett-Teller (BET) surface area of biochar and its ability to increase methane (CH4) yield and remove contaminants from biogas and wastewater. The novelty of the study is that FeCl3, an activating agent, can increase the BET surface area of biochar, and its efficacy increases when combined with zinc chloride or phosphoric acid. Regarding the removal of contaminants from wastewater and biogas, FeCl3 has proven to be an effective coagulant, reducing the chemical oxygen demand (COD) of wastewater and hydrogen sulfide in biogas. The performance of FeCl3 depends on the dosage, pH, and feedstock used. Therefore, FeCl3 can increase the BET surface area of biochar and CH4 yield and remove contaminants from wastewater and biogas. More research is needed to investigate the ability of FeCl3 to remove water vapor and carbon dioxide during biogas production while accounting for a set of other parameters, including FeCl3 size.
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Affiliation(s)
- Mathurin François
- Department of Chemical Engineering and Materials Science/Environmental Technology Research Center, Yuan Ze University, Chung-Li District, Taoyuan City 32003, Taiwan; Environmental Technology Research Center, Yuan Ze University, Chung-Li District, Taoyuan City 32003, Taiwan
| | - Kuen-Song Lin
- Department of Chemical Engineering and Materials Science/Environmental Technology Research Center, Yuan Ze University, Chung-Li District, Taoyuan City 32003, Taiwan; Environmental Technology Research Center, Yuan Ze University, Chung-Li District, Taoyuan City 32003, Taiwan.
| | - Nova Rachmadona
- Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Jatinangor, West Java 45363, Indonesia; Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran, Jatinangor, West Java 45363, Indonesia
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan..
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12
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Amin N, Aslam M, Khan Z, Yasin M, Hossain S, Shahid MK, Inayat A, Samir A, Ahmad R, Murshed MN, Khurram MS, El Sayed ME, Ghauri M. Municipal solid waste treatment for bioenergy and resource production: Potential technologies, techno-economic-environmental aspects and implications of membrane-based recovery. CHEMOSPHERE 2023; 323:138196. [PMID: 36842558 DOI: 10.1016/j.chemosphere.2023.138196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 02/12/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
World estimated municipal solid waste generating at an alarming rate and its disposal is a severe concern of today's world. It is equivalent to 0.79 kg/d per person footprint and causing climate change; health hazards and other environmental issues which need attention on an urgent basis. Waste to energy (WTE) considers as an alternative renewable energy potential to recover energy from waste and reduce the global waste problems. WTE reduced the burden on fossil fuels for energy generation, waste volumes, environmental, and greenhouse gases emissions. This critical review aims to evaluate the source of solid waste generation and the possible routes of waste management such as biological landfill and thermal treatment (Incineration, pyrolysis, and gasification). Moreover, a comparative evaluation of different technologies was reviewed in terms of economic and environmental aspects along with their limitations and advantages. Critical literature revealed that gasification seemed to be the efficient route and environmentally sustainable. In addition, a framework for the gasification process, gasifier types, and selection of gasifiers for MSW was presented. The country-wise solutions recommendation was proposed for solid waste management with the least impact on the environment. Furthermore, key issues and potential perspectives that require urgent attention to facilitate global penetration are highlighted. Finally, practical implications of membrane and comparison membrane-based separation technology with other conventional technologies to recover bioenergy and resources were discussed. It is expected that this study will lead towards practical solution for future advancement in terms of economic and environmental concerns, and also provide economic feasibility and practical implications for global penetration.
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Affiliation(s)
- Naila Amin
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan; Department of Chemical Engineering and Technology, University of Gujrat, Hafiz Hayat campus, Gujrat, Pakistan
| | - Muhammad Aslam
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.
| | - Zakir Khan
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.
| | - Muhammad Yasin
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Shakhawat Hossain
- Department of Industrial and Production Engineering, Jashore University of Science and Technology, Jessore, 7408, Bangladesh
| | - Muhammad Kashif Shahid
- Research Institute of Environment & Biosystem, Chungnam National University, Yuseonggu, Daejeon, 34134, Republic of Korea
| | - Abrar Inayat
- Department of Sustainable and Renewable Energy Engineering, University of Sharjah, Sharjah, United Arab Emirates; Biomass & Bioenergy Research Group, Center for Sustainable Energy and Power Systems Research, Research Institute of Sciences and Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Ahmed Samir
- Physics Department, Faculty of Science and Arts, King Khalid University, Muhayl Asser, Saudi Arabia; Center of Plasma Technology, Al-Azhar University, Cairo, Egypt
| | - Rizwan Ahmad
- Department of Chemical and Energy Engineering, Pak-Austria Fachhochschule: Institute of Applied Sciences & Technology (PAF-IAST), Haripur, Pakistan
| | - Mohammad N Murshed
- Physics Department, Faculty of Science and Arts, King Khalid University, Muhayl Asser, Saudi Arabia
| | - Muhammad Shahzad Khurram
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Mohamed E El Sayed
- Physics Department, Faculty of Science and Arts, King Khalid University, Muhayl Asser, Saudi Arabia
| | - Moinuddin Ghauri
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
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13
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Maqsood K, Jamil A, Ahmed A, Sutisna B, Nunes S, Ulbricht M. Blend membranes comprising polyetherimide and polyvinyl acetate with improved methane enrichment performance. CHEMOSPHERE 2023; 321:138074. [PMID: 36780999 DOI: 10.1016/j.chemosphere.2023.138074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/15/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
A clean and sustainable energy source, biogas is widely accessible worldwide. The caloric value of biogas is related to its methane content, and therefore removal of other gases is essential for reaping the benefits of this cleaner resource. In contrast to other classical techniques, membrane technology is relatively new yet extremely promising for methane enrichment. The methane enrichment performance of polymeric membranes is constrained, hence newer material combinations have been investigated to enhance membrane performance. In this study, blend membranes comprised of polyetherimide (PEI) and polyvinyl acetate (PVAc) in varying proportions were prepared by adopting the wet-phase inversion technique. The generated pure, and blend membranes were characterized for the morphological, thermal, and structural study. The interactions of PEI and PVAc in blend samples were verified by FTIR analysis. On the other hand, SEM investigation indicated that the membranes have an anisotropic porous structure with a dense skin layer at the top. Subsequently, a single glass transition temperature (Tg), as validated by DSC analysis, indicates that the blended polymers are miscible. Furthermore, membranes' performance for gas separation was assessed regarding selectivity and permeance at feed pressures ranging from 2 to 6 bar. The permeation results showed that the CO2 permeance has increased by 40.47% with the addition of 4 wt % PVAc at 2 bar pressure. Furthermore, ideal selectivity improves as the blend ratio increases; nonetheless, the highest value for CO2/CH4 ideal selectivity was attained with a 2 wt % PVAc addition and at 2 bar pressure, which is approximately 26% greater than the pure PEI membrane. At 4 bar pressure, optimum CO2/N2 selectivity value of 22.50 was achieved. The findings indicate that PVAc is an excellent option for expanding the separation performance of blended polymeric membranes for biogas enrichment.
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Affiliation(s)
- Khuram Maqsood
- Department of Chemical Engineering, University of Jeddah, Jeddah, Saudi Arabia.
| | - Asif Jamil
- Department of Chemical, Polymer and Composite Materials Engineering, University of Engineering and Technology (New Campus) Lahore, Pakistan
| | - Anas Ahmed
- Department of Industrial and System Engineering, University of Jeddah, Jeddah, Saudi Arabia
| | | | - Suzana Nunes
- Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen,Essen, Germany
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14
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Park S, Yang J, Lee HM, Lee YS, Lee YK, Yamada Y, Lee N, Kim J. Effect of the Position of Amine Groups on the CO 2, CH 4, and H 2 Adsorption Performance of Graphene Nanoflakes. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Sangmin Park
- Carbon & Light Materials Application Research Group, Korea Institute of Industrial Technology (KITECH), 222 Palbok-ro, Deokjin-gu, Jeonju 54853, Republic of Korea
- Division of Advanced Materials Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Junghoon Yang
- Carbon & Light Materials Application Research Group, Korea Institute of Industrial Technology (KITECH), 222 Palbok-ro, Deokjin-gu, Jeonju 54853, Republic of Korea
| | - Hye-Min Lee
- Research & Development Division, Korea Carbon Industry Promotion Agency (KCARBON), 110-11 Banyong-ro, Deokjin-gu, Jeonju 54853, Republic of Korea
| | - Young-Seak Lee
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Yoon Kyeung Lee
- Division of Advanced Materials Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Yasuhiro Yamada
- Graduate School of Engineering, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Nodo Lee
- Materials & Devices Advanced Research Institute, LG Electronics, 10, Magokjungang-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Jungpil Kim
- Carbon & Light Materials Application Research Group, Korea Institute of Industrial Technology (KITECH), 222 Palbok-ro, Deokjin-gu, Jeonju 54853, Republic of Korea
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15
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Wang Y, Baral NR, Yang M, Scown CD. Co-Processing Agricultural Residues and Wet Organic Waste Can Produce Lower-Cost Carbon-Negative Fuels and Bioplastics. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:2958-2969. [PMID: 36747467 PMCID: PMC9948286 DOI: 10.1021/acs.est.2c06674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 01/20/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
Scalable, low-cost biofuel and biochemical production can accelerate progress on the path to a more circular carbon economy and reduced dependence on crude oil. Rather than producing a single fuel product, lignocellulosic biorefineries have the potential to serve as hubs for the production of fuels, production of petrochemical replacements, and treatment of high-moisture organic waste. A detailed techno-economic analysis and life-cycle greenhouse gas assessment are developed to explore the cost and emission impacts of integrated corn stover-to-ethanol biorefineries that incorporate both codigestion of organic wastes and different strategies for utilizing biogas, including onsite energy generation, upgrading to bio-compressed natural gas (bioCNG), conversion to poly(3-hydroxybutyrate) (PHB) bioplastic, and conversion to single-cell protein (SCP). We find that codigesting manure or a combination of manure and food waste alongside process wastewater can reduce the biorefinery's total costs per metric ton of CO2 equivalent mitigated by half or more. Upgrading biogas to bioCNG is the most cost-effective climate mitigation strategy, while upgrading biogas to PHB or SCP is competitive with combusting biogas onsite.
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Affiliation(s)
- Yan Wang
- Energy
& Biosciences Institute, University
of California, Berkeley, Berkeley, California 94720, United States
- Life-Cycle,
Economics, and Agronomy Division, Joint
BioEnergy Institute, Emeryville, California 94608, United States
- Biological
Systems and Engineering Division, Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Nawa R. Baral
- Life-Cycle,
Economics, and Agronomy Division, Joint
BioEnergy Institute, Emeryville, California 94608, United States
- Biological
Systems and Engineering Division, Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Minliang Yang
- Life-Cycle,
Economics, and Agronomy Division, Joint
BioEnergy Institute, Emeryville, California 94608, United States
- Biological
Systems and Engineering Division, Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Corinne D. Scown
- Energy
& Biosciences Institute, University
of California, Berkeley, Berkeley, California 94720, United States
- Life-Cycle,
Economics, and Agronomy Division, Joint
BioEnergy Institute, Emeryville, California 94608, United States
- Biological
Systems and Engineering Division, Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
- Energy
Analysis and Environmental Impacts Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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16
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Vasilakis G, Rigos EM, Giannakis N, Diamantopoulou P, Papanikolaou S. Spent Mushroom Substrate Hydrolysis and Utilization as Potential Alternative Feedstock for Anaerobic Co-Digestion. Microorganisms 2023; 11:microorganisms11020532. [PMID: 36838496 PMCID: PMC9964826 DOI: 10.3390/microorganisms11020532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/08/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Valorization of lignocellulosic biomass, such as Spent Mushroom Substrate (SMS), as an alternative substrate for biogas production could meet the increasing demand for energy. In view of this, the present study aimed at the biotechnological valorization of SMS for biogas production. In the first part of the study, two SMS chemical pretreatment processes were investigated and subsequently combined with thermal treatment of the mentioned waste streams. The acidic chemical hydrolysate derived from the hydrothermal treatment, which yielded in the highest concentration of free sugars (≈36 g/100 g dry SMS, hydrolysis yield ≈75% w/w of holocellulose), was used as a potential feedstock for biomethane production in a laboratory bench-scale improvised digester, and 52 L biogas/kg of volatile solids (VS) containing 65% methane were produced in a 15-day trial of anaerobic digestion. As regards the alkaline hydrolysate, it was like a pulp due to the lignocellulosic matrix disruption, without releasing additional sugars, and the biogas production was delayed for several days. The biogas yield value was 37 L/kg VS, and the methane content was 62%. Based on these results, it can be concluded that SMS can be valorized as an alternative medium employed for anaerobic digestion when pretreated with both chemical and hydrothermal hydrolysis.
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Affiliation(s)
- Gabriel Vasilakis
- Laboratory of Food Microbiology and Biotechnology, Department of Food Science and Human Nutrition, Agricultural University of Athens, 11855 Athens, Greece
| | - Evangelos-Markos Rigos
- Laboratory of Food Microbiology and Biotechnology, Department of Food Science and Human Nutrition, Agricultural University of Athens, 11855 Athens, Greece
| | - Nikos Giannakis
- Laboratory of Food Process Engineering, Department of Food Science and Human Nutrition, Agricultural University of Athens, 11855 Athens, Greece
| | - Panagiota Diamantopoulou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization “Dimitra”, 1 Sofokli Venizelou Str., 14123 Lykovryssi, Greece
| | - Seraphim Papanikolaou
- Laboratory of Food Microbiology and Biotechnology, Department of Food Science and Human Nutrition, Agricultural University of Athens, 11855 Athens, Greece
- Correspondence:
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Agrawal A, Chaudhari PK, Ghosh P. Anaerobic digestion of fruit and vegetable waste: a critical review of associated challenges. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:24987-25012. [PMID: 35781666 DOI: 10.1007/s11356-022-21643-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
The depletion of fossil fuels coupled with stringent environmental laws has encouraged us to develop sustainable renewable energy. Due to its numerous benefits, anaerobic digestion (AD) has emerged as an environment-friendly technology. Biogas generated during AD is primarily a mixture of CH4 (65-70%) and CO2 (20-25%) and a potent energy source that can combat the energy crisis in today's world. Here, an attempt has been made to provide a broad understanding of AD and delineate the effect of various operational parameters influencing AD. The characteristics of fruit and vegetable waste (FVW) and its feasibility as a potent substrate for AD have been studied. This review also covers traditional challenges in managing FVW via AD, the implementation of various bioreactor systems to manage large amounts of organic waste and their operational boundaries, microbial consortia involved in each phase of digestion, and various strategies to increase biogas production.
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Affiliation(s)
- Akanksha Agrawal
- Department of Chemical Engineering, National Institute of Technology, Raipur, C.G, India
| | | | - Prabir Ghosh
- Department of Chemical Engineering, National Institute of Technology, Raipur, C.G, India.
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18
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Fakoori M, Azdarpour A, Honarvar B. Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO
2
/CH
4
mixed gas separation. ASIA-PAC J CHEM ENG 2022. [DOI: 10.1002/apj.2848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mahdi Fakoori
- Department of Chemical Engineering, Marvdasht Branch Islamic Azad University Marvdasht Iran
| | - Amin Azdarpour
- Department of Chemical Engineering, Marvdasht Branch Islamic Azad University Marvdasht Iran
| | - Bizhan Honarvar
- Department of Chemical Engineering, Marvdasht Branch Islamic Azad University Marvdasht Iran
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19
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Jung A, Řeha D, Minofar B, Stanovský P, Pasichnyk M, Přibyl M, Bara JE, Friess K, Fíla V, Izák P. Molecular simulation of poly(VDF-HFP) copolymer with imidazolium-based ionic liquid as an effective medium for biogas separation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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20
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Sánchez A. Biogas improvement as renewable energy through conversion into methanol: A perspective of new catalysts based on nanomaterials and metal organic frameworks. FRONTIERS IN NANOTECHNOLOGY 2022. [DOI: 10.3389/fnano.2022.1012384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
In recent years, the high cost and availability of energy sources have boosted the implementation of strategies to obtain different types of renewable energy. Among them, methane contained in biogas from anaerobic digestion has gained special relevance, since it also permits the management of a big amount of organic waste and the capture and long-term storage of carbon. However, methane from biogas presents some problems as energy source: 1) it is a gas, so its storage is costly and complex, 2) it is not pure, being carbon dioxide the main by-product of anaerobic digestion (30%–50%), 3) it is explosive with oxygen under some conditions and 4) it has a high global warming potential (27–30 times that of carbon dioxide). Consequently, the conversion of biogas to methanol is as an attractive way to overcome these problems. This process implies the conversion of both methane and carbon dioxide into methanol in one oxidation and one reduction reaction, respectively. In this dual system, the use of effective and selective catalysts for both reactions is a critical issue. In this regard, nanomaterials embedded in metal organic frameworks have been recently tested for both reactions, with very satisfactory results when compared to traditional materials. In this review paper, the recent configurations of catalysts including nanoparticles as active catalysts and metal organic frameworks as support materials are reviewed and discussed. The main challenges for the future development of this technology are also highlighted, that is, its cost in environmental and economic terms for its development at commercial scale.
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Werkneh AA. Biogas impurities: environmental and health implications, removal technologies and future perspectives. Heliyon 2022; 8:e10929. [PMID: 36299513 PMCID: PMC9589174 DOI: 10.1016/j.heliyon.2022.e10929] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/14/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022] Open
Abstract
Biogas is a promising bioenergy alternative to be recovered from waste/wastewater in the context of environmental sustainability and circular economy. However, raw biogas contains various secondary impurities such as carbon dioxide, hydrogen sulphide, siloxanes, nitrogen oxides (NOx), ammonia, and halogens. Depending on the emission rate of these biogas impurities, the importance of biogas is being hampered for its environmental, health and the detrimental effects possess by the impurities towards the downstream of the biogas users. Biogas impurities can cause different public health concerns (like pulmonary paralysis, asthma, respiratory diseases and deaths) and environmental impacts (such as global warming, climate change and their indirect impacts like drought, flooding, malnutrition and other disasters). The absence/inconsistent emission standards among countries, agencies, and other stakeholders is the other challenge that they possess during monitoring and controlling of these impurities. Different commercially available and emerging technologies are available for separating carbon dioxide (via biogas upgrading) and removing other biogas impurities. Technologies such as pressure swing adsorption, membrane separation, absorption-based techniques (water, chemical and physical organic solvents), cryogenic separation, and other emerging biotechnological platforms (like photobioreactor and biocatalysis) have been adopted in removing the impurities. This paper reviewed the main commercially available and new technologies and their performance in removing carbon dioxide (the main constituent of biogas) and other biogas impurities. Besides, the environmental and public health implications of biogas and future research perspectives are also highlighted.
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22
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Pakdel S, Erfan-Niya H, Azamat J. CO2/CH4 mixed-gas separation through carbon nitride membrane: A molecular dynamics simulation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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23
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Liu Y, Sim J, Hailemariam RH, Lee J, Rho H, Park KD, Kim DW, Woo YC. Status and future trends of hollow fiber biogas separation membrane fabrication and modification techniques. CHEMOSPHERE 2022; 303:134959. [PMID: 35580646 DOI: 10.1016/j.chemosphere.2022.134959] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/04/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
With the increasing global demand for energy, renewable and sustainable biogas has attracted considerable attention. However, the presence of various gases such as methane, carbon dioxide (CO2), nitrogen, and hydrogen sulfide in biogas, and the potential emission of acid gases, which may adversely influence the environment, limits the efficient application of biogas in many fields. Consequently, researchers have focused on the upgrade and purification of biogas to eliminate impurities and obtain high-quality and high-purity biomethane with an increased combustion efficiency. In this context, the removal of CO2 gas, which is the most abundant contaminant in biogas, is of significance. Compared to conventional biogas purification processes such as water scrubbing, chemical absorption, pressure swing adsorption, and cryogenic separation, advanced membrane separation technologies are simpler to implement, easier to scale, and incur lower costs. Notably, hollow fiber membranes enhance the gas separation efficiency and decrease costs because their large specific surface area provides a greater range of gas transport. Several reviews have described biogas upgrading technologies and gas separation membranes composed of different materials. In this review, five commonly used commercial biogas upgrading technologies, as well as biological microalgae-based techniques are compared, the advantages and limitations of polymeric and mixed matrix hollow fiber membranes are highlighted, and methods to fabricate and modify hollow fiber membranes are described. This will provide more ideas and methods for future low-cost, large-scale industrial biogas upgrading using membrane technology.
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Affiliation(s)
- Yuying Liu
- Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyang-Daero, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do, 10223, Republic of Korea; Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jeonghoo Sim
- Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyang-Daero, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do, 10223, Republic of Korea; Department of Civil and Environment Engineering, University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong-Gu, Daejeon, 34113, Republic of Korea
| | - Ruth Habte Hailemariam
- Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyang-Daero, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do, 10223, Republic of Korea; Department of Civil and Environment Engineering, University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong-Gu, Daejeon, 34113, Republic of Korea
| | - Jonghun Lee
- Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyang-Daero, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do, 10223, Republic of Korea
| | - Hojung Rho
- Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyang-Daero, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do, 10223, Republic of Korea
| | - Kwang-Duck Park
- Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyang-Daero, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do, 10223, Republic of Korea
| | - Dae Woo Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Yun Chul Woo
- Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyang-Daero, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do, 10223, Republic of Korea; Department of Civil and Environment Engineering, University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong-Gu, Daejeon, 34113, Republic of Korea.
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Peredo-Mancilla D, Matei Ghimbeu C, Réty B, Ho BN, Pino D, Vaulot C, Hort C, Bessieres D. Surface-Modified Activated Carbon with a Superior CH 4/CO 2 Adsorption Selectivity for the Biogas Upgrading Process. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Deneb Peredo-Mancilla
- Department of Fisheries, Universidad Autónoma de Baja California Sur, La Paz 23080, Mexico
- CNRS/Total/Univ Pau & Pays Adour/E2S UPPA, Laboratoire des Fluides Complexes et Leurs Reservoirs-IPRA, UMRS5150, 64000 Pau, France
| | - Camelia Matei Ghimbeu
- Institut de Science des Matériaux de Mulhouse (IS2M) UMR 7361, Université de Haute-Alsace, CNRS, F-68100 Mulhouse, France
- Université de Strasbourg, F-67081 Strasbourg, France
| | - Bénédicte Réty
- Institut de Science des Matériaux de Mulhouse (IS2M) UMR 7361, Université de Haute-Alsace, CNRS, F-68100 Mulhouse, France
- Université de Strasbourg, F-67081 Strasbourg, France
| | - Bich-Ngoc Ho
- CNRS/Total/Univ Pau & Pays Adour/E2S UPPA, Laboratoire des Fluides Complexes et Leurs Reservoirs-IPRA, UMRS5150, 64000 Pau, France
- Université Pau & Pays Adour/E2S UPPA, Laboratoire de Thermique, Energetique et Procedes-IPRA, EA1932, 64000 Pau, France
| | - David Pino
- CNRS/Total/Univ Pau & Pays Adour/E2S UPPA, Laboratoire des Fluides Complexes et Leurs Reservoirs-IPRA, UMRS5150, 64000 Pau, France
| | - Cyril Vaulot
- Institut de Science des Matériaux de Mulhouse (IS2M) UMR 7361, Université de Haute-Alsace, CNRS, F-68100 Mulhouse, France
- Université de Strasbourg, F-67081 Strasbourg, France
| | - Cécile Hort
- Université Pau & Pays Adour/E2S UPPA, Laboratoire de Thermique, Energetique et Procedes-IPRA, EA1932, 64000 Pau, France
| | - David Bessieres
- CNRS/Total/Univ Pau & Pays Adour/E2S UPPA, Laboratoire des Fluides Complexes et Leurs Reservoirs-IPRA, UMRS5150, 64000 Pau, France
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Dobrovskiy AY, Nazarychev VM, Volgin IV, Lyulin SV. The Transport Properties of Semi-Crystalline Polyetherimide BPDA-P3 in Amorphous and Ordered States: Computer Simulations. MEMBRANES 2022; 12:856. [PMID: 36135875 PMCID: PMC9504751 DOI: 10.3390/membranes12090856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 06/16/2023]
Abstract
The effect of polymer chain ordering on the transport properties of the polymer membrane was examined for the semi-crystalline heterocyclic polyetherimide (PEI) BPDA-P3 based on 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA) and diamine 1,4-bis [4-(4-aminophenoxy)phenoxy]benzene (P3). All-atom Molecular Dynamics (MD) simulations were used to investigate the gas diffusion process carried through the pores of a free volume several nanometers in size. The long-term (~30 μs) MD simulations of BPDA-P3 were performed at T = 600 K, close to the experimental value of the melting temperature (Tm ≈ 577 K). It was found during the simulations that the transition of the PEI from an amorphous state to an ordered one occurred. We determined a decrease in solubility for both the gases examined (CO2 and CH4), caused by the redistribution of free volume elements occurring during the structural ordering of the polymer chains in glassy state (Tg ≈ 487 K). By analyzing the diffusion coefficients in the ordered state, the presence of gas diffusion anisotropy was found. However, the averaged values of the diffusion coefficients did not differ from each other in the amorphous and ordered states. Thus, permeability in the observed system is primarily determined by gas solubility, rather than by gas diffusion.
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Affiliation(s)
| | | | | | - Sergey V. Lyulin
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoj pr. 31 (V.O.), 199004 St. Petersburg, Russia; (A.Y.D.); (V.M.N.); (I.V.V.)
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Comesaña-Gándara B, García-Depraect O, Santos-Beneit F, Bordel S, Lebrero R, Muñoz R. Recent trends and advances in biogas upgrading and methanotrophs-based valorization. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Koutsiantzi C, Mitrakas M, Zouboulis A, Kellartzis I, Stavropoulos G, Kikkinides ES. Evaluation of polymeric membranes' performance during laboratory-scale experiments, regarding the CO 2 separation from CH 4. CHEMOSPHERE 2022; 299:134224. [PMID: 35339525 DOI: 10.1016/j.chemosphere.2022.134224] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 01/30/2022] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
The present study evaluates the separation performance of a commercially available polymeric membrane, when employed for the upgrade of biogas to enrich CH4 from a simulated binary gas mixture. For this purpose, a laboratory-scale membrane set-up device has been designed and assembled, aiming to achieve the production of high purity biomethane (>95%) with simultaneous recycling and utilization of the (considered as) waste CO2 stream. The examined membrane is a polysulfone (PSF) hollow fiber (HF) one, applied in counter-current flow. The feed concentration of gases consisted between 55-70 vol% and 45-30 vol%, regarding CH4 and CO2 respectively, whereas the effect of retentate pressure was studied in the range between 0.7 and 1.5 bars. The experimental results reveal that the concentration of CH4 in the retentate stream can exceed the target value of 95%, when the applied pressure values are above the limit of 1 bar. Any increase in the feed pressure can lead also to higher CH4 purity on the retentate side, however the retentate mass flow decreases, leading to smaller recovery values of CH4. A significant increase in the CH4 purity is observed, when the CH4 recovery drops below 40%, suggesting the need for the application of multiple membrane modules, operating in series. Regarding the CO2 concentration in the permeate stream, its percentages range between 30 and 50%, which are not considered as sufficient to permit immediate reuse, whereas the need of extra membrane modules to improve the purity of gas streams is confirmed.
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Affiliation(s)
| | - Manassis Mitrakas
- Department of Chemical Engineering, Aristotle University of Thessaloniki, Greece
| | | | - Ioannis Kellartzis
- Department of Chemical Engineering, Aristotle University of Thessaloniki, Greece
| | - George Stavropoulos
- Department of Chemical Engineering, Aristotle University of Thessaloniki, Greece
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Abejón R, Casado-Coterillo C, Garea A. Techno-Economic Optimization of Multistage Membrane Processes with Innovative Hollow Fiber Modules for the Production of High-Purity CO 2 and CH 4 from Different Sources. Ind Eng Chem Res 2022; 61:8149-8165. [PMID: 35726248 PMCID: PMC9204776 DOI: 10.1021/acs.iecr.2c01138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/19/2022] [Accepted: 05/24/2022] [Indexed: 11/29/2022]
Abstract
Within the current climate emergency framework and in order to avoid the most severe consequences of global warming, membrane separation processes have become critical for the implementation of carbon capture, storage, and utilization technologies. Mixtures of CO2 and CH4 are relevant energy resources, and the design of innovative membranes specifically designed to improve their separation is a hot topic. This work investigated the potential of modified polydimethylsiloxane and ionic liquid-chitosan composite membranes for separation of CO2 and CH4 mixtures from different sources, such as biogas upgrading, natural gas sweetening, or CO2 enhanced oil recovery. The techno-economic optimization of multistage processes at a real industrial scale was carried out, paying special attention to the identification of the optimal configuration of the hollow fiber modules and the selection of the best membrane scheme. The results demonstrated that a high initial content of CH4 in the feed stream (like in the case of natural gas sweetening) might imply a great challenge for the separation performance, where only membranes with exceptional selectivity might achieve the requirements in a two-stage process. The effective lifetime of the membranes is a key parameter for the successful implementation of innovative membranes in order to avoid severe economic penalties due to excessively frequent membrane replacement. The scale of the process had a great influence on the economic competitiveness of the process, but large-scale installations can operate under competitive conditions with total costs below 0.050 US$ per m3 STP of treated feed gas.
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Affiliation(s)
- Ricardo Abejón
- Departamento
de Ingeniería Química, Universidad
de Santiago de Chile (USACH), Av. Libertador Bernardo O’Higgins 3363, Estación Central, Santiago 9170019, Chile
| | - Clara Casado-Coterillo
- Departamento
de Ingenierías Química y Biomolecular, Universidad de Cantabria, Av. Los Castros s/n, Santander 39005, Spain
| | - Aurora Garea
- Departamento
de Ingenierías Química y Biomolecular, Universidad de Cantabria, Av. Los Castros s/n, Santander 39005, Spain
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30
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Hydrogen Sulfide Capture and Removal Technologies: A Comprehensive Review of Recent Developments and Emerging Trends. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121448] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Park MJ, Kim HM, Lee YH, Jeon KW, Jeong DW. Optimization of a renewable hydrogen production system from food waste: A combination of anaerobic digestion and biogas reforming. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 144:272-284. [PMID: 35421707 DOI: 10.1016/j.wasman.2022.03.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 03/14/2022] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
In this study, hydrogen production using food waste was optimized by investigating the effect of agitator types in anaerobic digestion reactors and catalysts for biogas reforming. The applied agitators were pitched blade and hydrofoil, and their effect on homogeneity was estimated using computational fluid dynamics. Reactors with different agitators were operated for 60 days for biogas production. Increased biogas production was observed in the reactor equipped with a hydrofoil agitator owing to its high homogeneity. In addition, Ni-CeZrO2 catalysts promoted with La2O3, CaO, or MgO were investigated for stable hydrogen production during the biogas reforming reaction using simulated gas based on biogas from the anaerobic digestion equipped the hydrofoil. Among the promoted catalysts, the MgO-promoted Ni-CeZrO2 catalyst displayed the best results for hydrogen production without significant deactivation. The stable catalytic performance of the MgO-promoted catalyst resulted from the close interaction between Ni and MgO, and its high oxygen storage capacity. Thus, 1216 L hydrogen and 646 L carbon monoxide were produced per kilogram volatile solid via the hydrogen production system that included anaerobic digestion and biogas reforming.
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Affiliation(s)
- Min-Ju Park
- Department of Smart Environmental Energy Engineering, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongnam 51140, Republic of Korea
| | - Hak-Min Kim
- Industrial Technology Research Center, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongnam 51140, Republic of Korea
| | - Yong-Hee Lee
- Department of Smart Environmental Energy Engineering, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongnam 51140, Republic of Korea
| | - Kyung-Won Jeon
- Department of Environmental and Energy Engineering, Kyungnam University, 7, Kyungnamdaehak-ro, Changwon, Gyeongsangnam-do, Republic of Korea
| | - Dae-Woon Jeong
- Department of Smart Environmental Energy Engineering, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongnam 51140, Republic of Korea; Department of Environment & Energy Engineering, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongnam 51140, Republic of Korea.
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32
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Bahrun MHV, Bono A, Othman N, Zaini MAA. Carbon Dioxide Removal from Biogas through Pressure Swing Adsorption – A Review. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kulak H, Thür R, Vankelecom IFJ. MOF/Polymer Mixed-Matrix Membranes Preparation: Effect of Main Synthesis Parameters on CO 2/CH 4 Separation Performance. MEMBRANES 2022; 12:membranes12040425. [PMID: 35448395 PMCID: PMC9026548 DOI: 10.3390/membranes12040425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/11/2022] [Accepted: 04/11/2022] [Indexed: 12/10/2022]
Abstract
Design and preparation of mixed-matrix membranes (MMMs) with minimum defects and high performance for desired gas separations is still challenging as it depends on a variety of MMM synthesis parameters. In this study, 6FDA-DAM:DABA based MMMs using MOF-808 as filler were prepared to examine the impact of multiple variables on the preparation process of MMMs, including variation in polymer concentration, filler loading, volume of solution cast per membrane area, solvent type used and solvent evaporation rate, and to identify their impact on the CO2/CH4 separation performance of these membranes. Solvent evaporation rate proved to be the most critical synthesis parameter, directly influencing the performance and visual appearance of the membranes. Although less dominantly influencing the MMM performance, polymer concentration and solution volume also had an important role via control over the casting solution viscosity, particle agglomeration, and particle settling rate. Among all solvents studied, MMMs prepared with chloroform led to the best performance for this polymer-filler system. Chloroform-based MMMs containing 10 and 30 wt.% MOF-808 showed 73% and 62% increase in CO2 permeability, respectively, without a decrease in separation factor compared to unfilled membranes. The results indicate that enhanced gas separation performance of MMMs strongly depends on the cumulative effect of various synthesis parameters rather than individual impact, thus requiring a system-specific design and optimization.
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Michelon LK, Ramos JGVDS, Carvalho KQD, Passig FH. Effects of temperature and HRT on biogas production in moving and fixed bed of a novel upflow anaerobic hybrid (UAHB) reactor. ENVIRONMENTAL TECHNOLOGY 2022:1-14. [PMID: 35225750 DOI: 10.1080/09593330.2022.2048087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
The upflow anaerobic hybrid (UAHB) reactor combines the advantages of a upflow anaerobic sludge blanket (UASB-type) reactor and an anaerobic filter in a single compartment. A novel configuration of the UAHB reactor, composed of two three-phase separators (3PHS), was proposed to evaluate the biogas production in the moving and fixed bed in the treatment of synthetic sewage at a temperature range of 14-21 °C and hydraulic retention time (HRT) of 12, 10 and 8 h. The bench-scale reactor was operated in three different phases with organic loading rate (VOLR) of 0.6 (0.3-0.7), 0.7 ± 0.2, and 1.1 ± 0.1 kg COD m-3 d-1, respectively, for 225 days. The average removal efficiency of chemical oxygen demand (CODt) was 78 (42-89)%, and the total biogas yield was 3090 (1704-4782) mL d-1, with 66% of the lower 3PHS (moving bed) and 34% of the upper 3PHS (fixed bed). However, no significant difference was observed between the biogas yield on the 3PHS (p-value = 0.5048), thus confirming the influence of temperature in the biogas production. The average percentage of methane was 76 (60-82)% for both beds, and the filter media increased the production by 21%. Thus, it can be concluded that the fixed bed suppressed the instability of the moving bed regarding the biogas production and contributed to the final quality of the effluent.
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Affiliation(s)
- Leonardo Kozak Michelon
- The Federal University of Technology - Paraná (UTFPR), Environmental Sciences and Technology Graduate Program, Curitiba, Brazil
| | | | - Karina Querne de Carvalho
- The Federal University of Technology - Paraná (UTFPR), Civil Construction Academic Department, Curitiba, Brazil
| | - Fernando Hermes Passig
- The Federal University of Technology - Paraná (UTFPR), Chemistry and Biology Academic Department, Curitiba, Brazil
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35
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Liu Y, Xie W, Liang S, Li X, Fan Y, Luo S. Polyimide/ZIFs mixed matrix membranes with tunable interfacial interaction for efficient gas separation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120240] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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36
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Regmi C, Ashtiani S, Průša F, Friess K. Synergistic effect of hybridized TNT@GO fillers in CTA-based mixed matrix membranes for selective CO2/CH4 separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120128] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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37
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Gupta R, Miller R, Sloan W, You S. Economic and environmental assessment of organic waste to biomethane conversion. BIORESOURCE TECHNOLOGY 2022; 345:126500. [PMID: 34890814 DOI: 10.1016/j.biortech.2021.126500] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 06/13/2023]
Abstract
Biomethane and biofertilizer production by anaerobic co-digestion of organic waste serves a promising method for reducing the environmental footprint of organic waste management. This study evaluated the techno-economic feasibility and environmental impacts of organic waste to biomethane development in Glasgow, UK using net present value (NPV) analysis and life cycle assessment. Four different biogas upgrading technologies (pressurized water scrubbing, chemical scrubbing, membrane separation, and pressure swing adsorption) were compared. The membrane separation technology-based biomethane production meets 0.8% of the gas demand for Glasgow households with a conversion efficiency of 83%. The organic waste to biomethane development saved up to 264 kg CO2-eq annually per tonne of waste treated, with an NPV ranged between £-9.0 million and £-12.0 million based on the upgrading technology. High costs for waste collection and transportation are primarily responsible for the negative NPV. Carbon taxes between £31.30 and £58.02 per tonne of CO2 are needed for economically viable biomethane production.
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Affiliation(s)
- Rohit Gupta
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Royce Miller
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - William Sloan
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK.
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39
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Stanovský P, Benkocká M, Kolská Z, Šimčík M, Slepička P, Švorčík V, Friess K, Ruzicka MC, Izak P. Permeability enhancement of chemically modified and grafted polyamide layer of thin-film composite membranes for biogas upgrading. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119890] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Abstract
Anaerobic digestion (AD) represents an advantageous solution for the treatment and valorization of organic waste and wastewater. To be suitable for energy purposes, biogas generated in AD must be subjected to proper upgrading treatments aimed at the removal of carbon dioxide and other undesirable gases. Pressurized anaerobic digestion (PDA) has gained increasing interest in recent years, as it allows the generation of a high-quality biogas with a low CO2 content. However, high pressures can cause some negative impacts on the AD process, which could be accentuated by feedstock characteristics. Until now, few studies have focused on the application of PAD to the treatment of real waste. The present work investigated, for the first time, the performance of the pressurized anaerobic digestion of raw compost leachate. The study was conducted in a lab-scale pressurized CSTR reactor, working in semi-continuous mode. Operating pressures from the atmospheric value to 4 bar were tested at organic loading rate (OLR) values of 20 and 30 kgCOD/m3d. In response to the rise in operating pressure, for both OLR values tested, a decrease of CO2 content in biogas was observed, whereas the CH4 fraction increased to values around 75% at 4 bar. Despite this positive effect, the pressure growth caused a decline in COD removal from 88 to 62% in tests with OLR = 20 kgCOD/m3d. At OLR = 30 kgCOD/m3d, an overload condition was observed, which induced abatements of about 56%, regardless of the applied pressure. With both OLR values, biogas productions and specific methane yields decreased largely when the pressure was brought from atmospheric value to just 1 bar. The values went from 0.33 to 0.27 LCH4/gCODremoved at 20 kgCOD/m3d, and from 0.27 to 0.18 LCH4/gCODremoved at 30 kgCOD/m3d. Therefore, as the pressure increased, although there was an enhanced biogas quality, the overall amount of methane was lowered. The pressured conditions did not cause substantial modification in the characteristics of digestates.
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Markova SY, Dukhov AV, Pelzer M, Shalygin MG, Vad T, Gries T, Teplyakov VV. Designing 3D Membrane Modules for Gas Separation Based on Hollow Fibers from Poly(4-methyl-1-pentene). MEMBRANES 2021; 12:36. [PMID: 35054562 PMCID: PMC8780325 DOI: 10.3390/membranes12010036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/20/2021] [Accepted: 12/25/2021] [Indexed: 12/02/2022]
Abstract
Designing hollow fiber (HF) membrane modules occupies one of the key positions in the development of efficient membrane processes for various purposes. In developing HF membrane modules, it is very important to have a uniform HF distribution and flow mixing in the shell side to significantly improve mass transfer and efficiency. This work suggests the application of different textile 3D HF structures (braided hoses and woven tape fabrics). The 3D structures consist of melt-spun, dense HFs based on poly(4-methyl-1-pentene) (PMP). Since the textile processing of HFs can damage the wall of the fiber or close the fiber bore, the membrane properties of the obtained structures are tested with a CO2/CH4 mixture in the temperature range of 0 to 40 °C. It is shown that HFs within the textile structure keep the same transport and separation characteristics compared to initial HFs. The mechanical properties of the PMP-based HFs allow their use in typical textile processes for the production of various membrane structures, even at a larger scale. PMP-based membranes can find application in separation processes, where other polymeric membranes are not stable. For example, they can be used for the separation of hydrocarbons or gas mixtures with volatile organic compounds.
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Affiliation(s)
- Svetlana Yu. Markova
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninskiy Prospect, 119991 Moscow, Russia; (A.V.D.); (M.G.S.); (V.V.T.)
| | - Anton V. Dukhov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninskiy Prospect, 119991 Moscow, Russia; (A.V.D.); (M.G.S.); (V.V.T.)
| | - Martin Pelzer
- Institut für Textiltechnik of RWTH Aachen University, Otto-Blumenthal-Straße 1, 52074 Aachen, Germany; (M.P.); (T.V.); (T.G.)
| | - Maxim G. Shalygin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninskiy Prospect, 119991 Moscow, Russia; (A.V.D.); (M.G.S.); (V.V.T.)
| | - Thomas Vad
- Institut für Textiltechnik of RWTH Aachen University, Otto-Blumenthal-Straße 1, 52074 Aachen, Germany; (M.P.); (T.V.); (T.G.)
| | - Thomas Gries
- Institut für Textiltechnik of RWTH Aachen University, Otto-Blumenthal-Straße 1, 52074 Aachen, Germany; (M.P.); (T.V.); (T.G.)
| | - Vladimir V. Teplyakov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninskiy Prospect, 119991 Moscow, Russia; (A.V.D.); (M.G.S.); (V.V.T.)
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42
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Preparation of Hollow Fiber Membranes Based On Poly(4-methyl-1-pentene) for Gas Separation. FIBERS 2021. [DOI: 10.3390/fib10010001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
New hollow fiber gas separation membranes with a non-porous selective layer based on poly(4-methyl-1-pentene) (PMP) granules have been obtained using the solution-free melt spinning process. The influence of the preparation conditions on the geometry of the obtained samples was studied. It was found that a spin head temperature of 280 °C and a specific mass throughput of 103 g mm−2 h−1 are optimal to obtain defect-free, thin-walled hollow fibers in a stable melt spinning process, using the given spinneret geometry and a winding speed of 25 m/min. The gas permeability and separation properties of new fibers were studied using CO2/N2 and CO2/CH4 mixtures, and it was found that the level of gas selectivity characteristic of homogeneous polymer films can be achieved. The features of the gas mixture components permeability below and above the PMP glass transition temperature have been experimentally studied in the range of CO2 concentrations from 10 to 90% vol. The temperature dependences of the permeability of the CO2/CH4/N2 mixture through the obtained HF based on PMP have been investigated, and the values of the apparent activation energies of the permeability have been calculated, which make it possible to predict the properties of membrane modules based on the obtained membranes in a wide temperature range.
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Hidayah N, Elma M, Darsono PV, Syauqiah I, Amenia A, Laksana Putra DG, Akbar HR, Huda N, Rahma A. Physicochemical Properties of Membrane Adsorber from Palm Empty Fruit Bunch (PEFB) by Acid Activation. MEMBRANES 2021; 11:membranes11120917. [PMID: 34940419 PMCID: PMC8707305 DOI: 10.3390/membranes11120917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/15/2021] [Accepted: 11/19/2021] [Indexed: 11/24/2022]
Abstract
A membrane adsorbent was successfully made from palm empty fruit bunches (PEFB), which was pyrolysed as physical activation. The effect of adding the impact of one-step catalyst (hydrochloric acid) and differences in the concentration on the characteristics and structure and deconvolution are investigated in this study. The results of the research have been successfully created and characterised using Fourier-Transform Infrared (FTIR), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) isotherm, and membrane morphology using SEM test. Membrane performance testing was carried out using a biogas flame test. The adsorber membrane was made by adding NH4Cl as a cationic surfactant, polyvinyl acetate (PVA), and polyethylene glycol (PEG) with a ratio of 1:3. The FTIR test has a functional group: O-H; C-H stretch; C=C-C; Arly O-Strech; C-O. Adsorbent membrane with the addition of 0.5 M HCl catalyst had the highest ratio of O-H/C=C-C relative area of 4.33. The diffractogram shows an amorphous structure with (002) and (100) graph planes. Adsorber membrane with a concentration of 1.5 M HCl has formed amorphous structured fibre. The adsorber membrane with a concentration of 0.5 HCl activator gave a surface area of 0.5345 m2 g−1 and a pore volume of 0.000983 cm3 g−1.
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Affiliation(s)
- Nur Hidayah
- Department of Industrial Engineering, Faculty of Science and Engineering, Sari Mulia University, Jl. Pramuka No. 2, Banjarmasin 70238, Indonesia
- Correspondence: (N.H.); (M.E.)
| | - Muthia Elma
- Department of Chemical Engineering, Faculty of Engineering, Lambung Mangkurat University, Jl. A. Yani KM 36, Banjarbaru 70714, Indonesia;
- Materials and Membranes Research Group (M2ReG), Lambung Mangkurat University, Jl. A. Yani KM 36, Banjarbaru 70714, Indonesia; (A.A.); (D.G.L.P.); (H.R.A.); (N.H.); (A.R.)
- Correspondence: (N.H.); (M.E.)
| | - Putri Vidiasari Darsono
- Pharmacy Department, Faculty of Health, Sari Mulia University, Jl. Pramuka No. 2, Banjarmasin 70238, Indonesia;
| | - Isna Syauqiah
- Department of Chemical Engineering, Faculty of Engineering, Lambung Mangkurat University, Jl. A. Yani KM 36, Banjarbaru 70714, Indonesia;
| | - Angelica Amenia
- Materials and Membranes Research Group (M2ReG), Lambung Mangkurat University, Jl. A. Yani KM 36, Banjarbaru 70714, Indonesia; (A.A.); (D.G.L.P.); (H.R.A.); (N.H.); (A.R.)
| | - Daniel Guntur Laksana Putra
- Materials and Membranes Research Group (M2ReG), Lambung Mangkurat University, Jl. A. Yani KM 36, Banjarbaru 70714, Indonesia; (A.A.); (D.G.L.P.); (H.R.A.); (N.H.); (A.R.)
| | - Heru Renaldi Akbar
- Materials and Membranes Research Group (M2ReG), Lambung Mangkurat University, Jl. A. Yani KM 36, Banjarbaru 70714, Indonesia; (A.A.); (D.G.L.P.); (H.R.A.); (N.H.); (A.R.)
| | - Nurul Huda
- Materials and Membranes Research Group (M2ReG), Lambung Mangkurat University, Jl. A. Yani KM 36, Banjarbaru 70714, Indonesia; (A.A.); (D.G.L.P.); (H.R.A.); (N.H.); (A.R.)
| | - Aulia Rahma
- Materials and Membranes Research Group (M2ReG), Lambung Mangkurat University, Jl. A. Yani KM 36, Banjarbaru 70714, Indonesia; (A.A.); (D.G.L.P.); (H.R.A.); (N.H.); (A.R.)
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Mohd Johari SA, Mahad Nasir MM, Ali S, Hamza A, Aleem W, Ameen M, Aqsha A. Recent Technology Developments in Biogas Production from Waste Materials in Malaysia. CHEMBIOENG REVIEWS 2021. [DOI: 10.1002/cben.202100016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Siti Aminah Mohd Johari
- Universiti Teknologi PETRONAS Higher Institution Centre of Excellence (HiCoE) Centre for Biofuel and Biochemical Research (CBBR) Institute of Sustainable Living (ISB) 32610 Seri Iskandar Malaysia
- Universiti Teknologi PETRONAS Department of Chemical Engineering 32610 Seri Iskandar Malaysia
| | | | - Sundas Ali
- University of Punjab Institute of Chemical Engineering and Technology 54590 Lahore Pakistan
| | - Ameer Hamza
- University of Punjab Institute of Chemical Engineering and Technology 54590 Lahore Pakistan
| | - Waqas Aleem
- Mir Chakar Khan Rind University of Technology Department of Chemical Engineering & Technology Dera Ghazi Khan Pakistan
| | - Mariam Ameen
- Universiti Teknologi PETRONAS Higher Institution Centre of Excellence (HiCoE) Centre for Biofuel and Biochemical Research (CBBR) Institute of Sustainable Living (ISB) 32610 Seri Iskandar Malaysia
- Universiti Teknologi PETRONAS Department of Chemical Engineering 32610 Seri Iskandar Malaysia
| | - Aqsha Aqsha
- Institut Teknologi Bandung Department of Bioenergy and Chemurgy Engineering, Faculty of Technology Industry 45363 Bandung Indonesia
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Abstract
Membrane operations nowadays drive the innovative design of important separation, conversion, and upgrading processes, and contribute to realizing the main principles of “green process engineering” in various sectors. In this perspective, we propose the re-design of traditional plants for biogas upgrading and integrating and/or replacing conventional operations with innovative membrane units. Bio-digester gas streams contain valuable products such as biomethane, volatile organic compounds, and volatile fatty acids, whose recovery has important advantages for environment protection, energy saving, and waste valorization. Advanced membrane units can valorize biogas by separating its various components, and establishing environmentally friendly and small-scale energivorous novel separation processes enables researchers to pursue the requirements of circular economy.
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46
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Multiobjective Optimization Based on “Distance-to-Target” Approach of Membrane Units for Separation of CO2/CH4. Processes (Basel) 2021. [DOI: 10.3390/pr9111871] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The effective separation of CO2 and CH4 mixtures is essential for many applications, such as biogas upgrading, natural gas sweetening or enhanced oil recovery. Membrane separations can contribute greatly in these tasks, and innovative membrane materials are being developed for this gas separation. The aim of this work is the evaluation of the potential of two types of highly CO2-permeable membranes (modified commercial polydimethylsiloxane and non-commercial ionic liquid–chitosan composite membranes) whose selective layers possess different hydrophobic and hydrophilic characteristics for the separation of CO2/CH4 mixtures. The study of the technical performance of the selected membranes can provide a better understanding of their potentiality. The optimization of the performance of hollow fiber modules for both types of membranes was carried out by a “distance-to-target” approach that considered multiple objectives related to the purities and recovery of both gases. The results demonstrated that the ionic liquid–chitosan composite membranes improved the performance of other innovative membranes, with purity and recovery percentage values of 86 and 95%, respectively, for CO2 in the permeate stream, and 97 and 92% for CH4 in the retentate stream. The developed multiobjective optimization allowed for the determination of the optimal process design and performance parameters, such as the membrane area, pressure ratio and stage cut required to achieve maximum values for component separation in terms of purity and recovery. Since the purities and recoveries obtained were not enough to fulfill the requirements imposed on CO2 and CH4 streams to be directly valorized, the design of more complex multi-stage separation systems was also proposed by the application of this optimization methodology, which is considered as a useful tool to advance the implementation of the membrane separation processes.
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47
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A Critical Overview of the State-of-the-Art Methods for Biogas Purification and Utilization Processes. SUSTAINABILITY 2021. [DOI: 10.3390/su132011515] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Biogas is one of the most attractive renewable resources due to its ability to convert waste into energy. Biogas is produced during an anaerobic digestion process from different organic waste resources with a combination of mainly CH4 (~50 mol/mol), CO2 (~15 mol/mol), and some trace gasses. The percentage of these trace gases is related to operating conditions and feedstocks. Due to the impurities of the trace gases, raw biogas has to be cleaned before use for many applications. Therefore, the cleaning, upgrading, and utilization of biogas has become an important topic that has been widely studied in recent years. In this review, raw biogas components are investigated in relation to feedstock resources. Then, using recent developments, it describes the cleaning methods that have been used to eliminate unwanted components in biogas. Additionally, the upgrading processes are systematically reviewed according to their technology, recovery range, and state of the art methods in this area, regarding obtaining biomethane from biogas. Furthermore, these upgrading methods have been comprehensively reviewed and compared with each other in terms of electricity consumption and methane losses. This comparison revealed that amine scrubbing is one the most promising methods in terms of methane losses and the energy demand of the system. In the section on biogas utilization, raw biogas and biomethane have been assessed with recently available data from the literature according to their usage areas and methods. It seems that biogas can be used as a biofuel to produce energy via CHP and fuel cells with high efficiency. Moreover, it is able to be utilized in an internal combustion engine which reduces exhaust emissions by using biofuels. Lastly, chemical production such as biomethanol, bioethanol, and higher alcohols are in the development stage for utilization of biogas and are discussed in depth. This review reveals that most biogas utilization approaches are in their early stages. The gaps that require further investigations in the field have been identified and highlighted for future research.
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Glover J, Besley E. A high-throughput screening of metal-organic framework based membranes for biogas upgrading. Faraday Discuss 2021; 231:235-257. [PMID: 34517410 DOI: 10.1039/d1fd00005e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Applications of biomethane as a source of renewable energy and transport fuel rely heavily on successful implementation of purification methods capable of removing undesirable impurities from biogas and increasing its calorific content. Metal-organic frameworks (MOFs) are competitive candidates for biogas upgrading due to a versatile range of attractive physical and chemical properties which can be utilised in membrane materials. In this work, we present a high-throughput computational screening methodology for efficient identification of MOF structures with promising gas separation performance. The proposed screening strategy is based on initial structural analysis and predictions of the single-component permeation of CO2, CH4 and H2S from adsorption and diffusion calculations at infinite dilution. The identified top performing candidates are subject to further analysis of their gas separation performance at the operating conditions of 10 bar and 298 K, using grand canonical Monte Carlo and equilibrium molecular dynamics simulations on equimolar CO2/CH4 and H2S/CH4 mixtures. The Henry constant for the adsorption of H2O was also calculated to determine the hydrophobicity of MOF structures, as the presence of H2O often leads to membrane instability and performance limitations. For the considered gas mixtures, the top MOF candidates exhibit superior separation capabilities over polymer-, zeolite-, and mixed matrix-based membranes as indicated by the predicted values of selectivity and permeability. The proposed screening protocol offers a powerful tool for the rational design of novel MOFs for biogas upgrading.
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Affiliation(s)
- Joseph Glover
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, UK.
| | - Elena Besley
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, UK.
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49
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Silva AFR, Brasil YL, Koch K, Amaral MCS. Resource recovery from sugarcane vinasse by anaerobic digestion - A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 295:113137. [PMID: 34198179 DOI: 10.1016/j.jenvman.2021.113137] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/16/2021] [Accepted: 06/19/2021] [Indexed: 06/13/2023]
Abstract
The increase in biofuel production by 2030, driven by the targets set at the 21st United Nations Framework Convention on Climate Change (COP21), will promote an increase in ethanol production, and consequently more vinasse generation. Sugarcane vinasse, despite having a high polluting potential due to its high concentration of organic matter and nutrients, has the potential to produce value-added resources such as volatile fatty acids (VFA), biohydrogen (bioH2) and biomethane (bioCH4) from anaerobic digestion. The objective of this paper is to present a critical review on the vinasse treatment by anaerobic digestion focusing on the final products. Effects of operational parameters on production and recovery of these resources, such as pH, temperature, retention time and type of inoculum were addressed. Given the importance of treating sugarcane vinasse due to its complex composition and high volume generated in the ethanol production process, this is the first review that evaluates the production of VFAs, bioH2 and bioCH4 in the treatment of this organic residue. Also, the challenges of the simultaneous production of VFA, bioH2 and bioCH4 and resources recovery in the wastewater streams generated in flex-fuel plants, using sugarcane and corn as raw material in ethanol production, are presented. The installation of flex-fuel plants was briefly discussed, with the main impacts on the treatment process of these effluents either jointly or simultaneously, depending on the harvest season.
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Affiliation(s)
- A F R Silva
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Y L Brasil
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - K Koch
- Chair of Urban Water Systems Engineering, Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Munich, Germany
| | - M C S Amaral
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte, Brazil.
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50
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Mishra A, Kumar M, Bolan NS, Kapley A, Kumar R, Singh L. Multidimensional approaches of biogas production and up-gradation: Opportunities and challenges. BIORESOURCE TECHNOLOGY 2021; 338:125514. [PMID: 34265593 DOI: 10.1016/j.biortech.2021.125514] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 06/13/2023]
Abstract
The expanding interest towards biogas generation from biowaste via complex anaerobic digestion (AD) opened new avenues in the improvement of biogas production processes and their up-gradation. The adsorption/removal of impurities particularly hydrogen sulfide (H2S) and carbon dioxide (CO2) from the biogas stream will significantly improve the efficiency of biogas for its further use as a renewable energy fuel. The production and up-gradation of biogas rely upon the types of feedstocks, AD condition, microbial diversity, purification methods along with the application of various additives. In that context, this review aims to emphasize the current state of the art in the field of biogas production via AD using diverse bio-waste. Further, this review will critically explore the biogas up-gradation technologies adopted so far and their pros and cons. Finally, techno-economic and environmental impact assessment of the biogas production process will be underlined to make the process cost-effective and environmentally sustainable.
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Affiliation(s)
- Apurva Mishra
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India; Environmental Biotechnology and Genomics Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, Maharashtra, India
| | - Manish Kumar
- Environmental Biotechnology and Genomics Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, Maharashtra, India
| | - Nanthi S Bolan
- Global Centre for Environmental Remediation, University of Newcastle, Callaghan 2308, NSW, Australia
| | - Atya Kapley
- Environmental Biotechnology and Genomics Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, Maharashtra, India
| | - Rakesh Kumar
- Environmental Biotechnology and Genomics Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, Maharashtra, India
| | - Lal Singh
- Environmental Biotechnology and Genomics Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, Maharashtra, India.
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