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Reversible Atmospheric Water Harvesting Using Metal-Organic Frameworks. Sci Rep 2020; 10:1492. [PMID: 32001756 PMCID: PMC6992632 DOI: 10.1038/s41598-020-58405-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 01/14/2020] [Indexed: 11/08/2022] Open
Abstract
The passive capture of clean water from humid air without reliance on bulky equipment and high energy has been a substantial challenge and has attracted significant interest as a potential environmentally friendly alternative to traditional water harvesting methods. Metal-organic frameworks (MOFs) offer a high potential for this application due to their structural versatility which permits scalable, facile modulations of structural and functional elements. Although MOFs are promising materials for water harvesting, little research has been done to address the microstructure-adsorbing characteristics relationship with respect to the dynamic adsorption-desorption process. In this article, we present a parametric study of nine hydrolytically stable MOFs with diverse structures for unraveling fundamental material properties that govern the kinetics of water sequestration in this class of materials as well as investigating overall uptake capacity gravimetrically. The effects of temperature, relative humidity, and powder bed thickness on the adsorption-desorption process are explored for achieving optimal operational parameters. We found that Zr-MOF-808 can produce up to 8.66 LH2O kg-1MOF day-1, an extraordinary finding that outperforms any previously reported values for MOF-based systems. The presented findings help to deepen our understanding and guide the discovery of next-generation water harvesting materials.
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52
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Novel Adsorption Cycle for High-Efficiency Adsorption Heat Pumps and Chillers: Modeling and Simulation Results. ENERGIES 2019. [DOI: 10.3390/en13010019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A novel thermodynamic cycle for adsorption heat pumps and chillers is presented. It shows a significant improvement of the internal heat recovery between the adsorption and the desorption half cycle. A stratified thermal storage, which allows for a temperature-based extraction and insertion of storage fluid, is hydraulically coupled with a single adsorber. The benefit is an increased efficiency by reusing the released heat of adsorption for regeneration of the adsorber and by rendering possible low driving temperature differences. For investigating the second law of this cycle, a dynamic model is employed. The transient behavior of the system and the respective losses because of driving temperature differences at the heat exchangers and losses due to mixing within the storage and to the surroundings are depicted in this one-dimensional model. The model is suitable both for analyzing this advanced cycle as well as for comparisons with other cycles.
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53
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Park J, Rubiera Landa HO, Kawajiri Y, Realff MJ, Lively RP, Sholl DS. How Well Do Approximate Models of Adsorption-Based CO2 Capture Processes Predict Results of Detailed Process Models? Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b05363] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jongwoo Park
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Héctor Octavio Rubiera Landa
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Yoshiaki Kawajiri
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Department of Materials Process Engineering, Nagoya University, Furo-cho 1, Chikusa, Nagoya 464-8603, Japan
| | - Matthew J. Realff
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Ryan P. Lively
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - David S. Sholl
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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54
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Equilibrium and kinetics of nitrous oxide, oxygen and nitrogen adsorption on activated carbon and carbon molecular sieve. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.04.051] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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55
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Abstract
Capturing CO2 directly from air is one of the options for mitigating the effects global climate change, and therefore determining its cost is of great interest. A process model was proposed and validated using laboratory results for adsorption/desorption of CO2, with a branched polyethyleneimine (PEI) loaded mesocellular foam (MCF) silica sorbent. The model was subjected to a Multi-Objective Optimization (MOO) to evaluate the technoeconomic feasibility of the process and to identify the operating conditions which yielded the lowest cost. The objectives of the MOO were to minimize the cost of CO2 capture based on a discounted cash flow analysis, while simultaneously maximizing the quantity of CO2 captured. This optimization identified the minimum cost of capture as 612 USD tonne−1 for dry air entering the process at 25 °C, and 657 USD tonne−1 for air at 22 °C and 39% relative humidity. The latter represents more realistic conditions which can be expected for subtropical climates. The cost of direct air capture could be reduced by ~42% if waste heat was utilized for the process, and by ~27% if the kinetics of the sorbent could be improved by a factor of two. A combination of both would allow cost reductions of ~54%.
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56
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Kaur B, Gupta RK, Bhunia H. CO2 capture on activated carbon from PET (polyethylene terephthalate) waste: Kinetics and modeling studies. CHEM ENG COMMUN 2019. [DOI: 10.1080/00986445.2019.1635466] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Balpreet Kaur
- Department of Chemical Engineering, Thapar Institute of Engineering and Technology (Deemed to be University), Patiala, Punjab, India
| | - Raj Kumar Gupta
- Department of Chemical Engineering, Thapar Institute of Engineering and Technology (Deemed to be University), Patiala, Punjab, India
| | - Haripada Bhunia
- Department of Chemical Engineering, Thapar Institute of Engineering and Technology (Deemed to be University), Patiala, Punjab, India
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57
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LaPotin A, Kim H, Rao SR, Wang EN. Adsorption-Based Atmospheric Water Harvesting: Impact of Material and Component Properties on System-Level Performance. Acc Chem Res 2019; 52:1588-1597. [PMID: 31090396 DOI: 10.1021/acs.accounts.9b00062] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Atmospheric water harvesting (AWH) is the capture and collection of water that is present in the air either as vapor or small water droplets. AWH has been recognized as a method for decentralized water production, especially in areas where liquid water is physically scarce, or the infrastructure required to bring water from other locations is unreliable or infeasible. The main methods of AWH are fog harvesting, dewing, and utilizing sorbent materials to collect vapor from the air. In this paper, we first distinguish between the geographic/climatic operating regimes of fog harvesting, dewing, and sorbent-based approaches based on temperature and relative humidity (RH). Because utilizing sorbents has the potential to be more widely applicable to areas which are also facing water scarcity, we focus our discussion on this approach. We discuss sorbent materials which have been developed for AWH and the material properties which affect system-level performance. Much of the recent materials development has focused on a single material metric, equilibrium vapor uptake in the material (kg of water uptake per kg of dry adsorbent), as found from the adsorption isotherm. This equilibrium property alone, however, is not a good indicator of the actual performance of the AWH system. Understanding material properties which affect heat and mass transport are equally important in the development of materials and components for AWH, because resistances associated with heat and mass transport in the bulk material dramatically change the system performance. We focus our discussion on modeling a solar thermal-driven system. Performance of a solar-driven AWH system can be characterized by different metrics, including L of water per m2 device per day or L of water per kg adsorbent per day. The former metric is especially important for systems driven by low-grade heat sources because the low power density of these sources makes this technology land area intensive. In either case, it is important to include rates in the performance metric to capture the effects of heat and mass transport in the system. We discuss our previously developed modeling framework which can predict the performance of a sorbent material packed into a porous matrix. This model connects mass transport across length scales, considering diffusion both inside a single crystal as well as macroscale geometric parameters, such as the thickness of a composite adsorbent layer. For a simple solar thermal-driven adsorption-based AWH system, we show how this model can be used to optimize the system. Finally, we discuss strategies which have been used to improve heat and mass transport in the design of adsorption systems and the potential for adsorption-based AWH systems for decentralized water supplies.
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Affiliation(s)
- Alina LaPotin
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Hyunho Kim
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Korea Institute of Science and Technology, Seoul 02792, South Korea
| | - Sameer R. Rao
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Mechanical Engineering, The University of Utah, Salt Lake City, Utah 84112, United States
| | - Evelyn N. Wang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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58
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Model development for the separation of a strongly adsorbing gas mixture on a semi-pilot scale adsorber. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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59
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Sircar S, Golden TC. 110th Anniversary: Comments on Heterogeneity of Practical Adsorbents. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. Sircar
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - T. C. Golden
- Air Products and Chemicals, Inc., Allentown, Pennsylvania 18195, United States
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60
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Vorokhta M, Morávková J, Řimnáčová D, Pilař R, Zhigunov A, Švábová M, Sazama P. CO2 capture using three-dimensionally ordered micromesoporous carbon. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.03.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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61
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Inglezakis VJ, Fyrillas MM, Park J. Variable diffusivity homogeneous surface diffusion model and analysis of merits and fallacies of simplified adsorption kinetics equations. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:224-245. [PMID: 30594723 DOI: 10.1016/j.jhazmat.2018.12.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 11/23/2018] [Accepted: 12/07/2018] [Indexed: 05/27/2023]
Abstract
Adsorption and ion exchange phenomena are encountered in several separation processes, which in turn, are of vital importance across various industries. Although the literature on adsorption kinetics modeling is rich, the majority of the models employed are empirical, based on chemical reaction kinetics or oversimplified versions of diffusion models. In this paper, the fifteen most popular simplified adsorption kinetics equations are presented and discussed. A new versatile variable-diffusivity two-phase homogeneous diffusion model is presented and used to evaluate the analytical adsorption models. Aspects of ion exchange kinetics are also addressed.
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Affiliation(s)
- V J Inglezakis
- Nazarbayev University, School of Engineering, Chemical & Materials Engineering Department, Environmental Science & Technology Group (ESTg), Astana, Kazakhstan; The Environment and Resource Efficiency Cluster (EREC), Nazarbayev University, Astana, Kazakhstan.
| | - M M Fyrillas
- Frederick University, Department of Mechanical Engineering, Nicosia, Cyprus.
| | - J Park
- University of Wisconsin-Madison, College of Engineering, Civil and Environmental Engineering, Madison, USA.
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62
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Vallejos-Burgos F, Kaneko K. Measuring adsorption isotherms with a flowmeter and a pressure gauge. ADSORPTION 2019. [DOI: 10.1007/s10450-019-00068-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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63
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64
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Son KN, Weibel JA, Knox JC, Garimella SV. Limitations of the Axially Dispersed Plug-Flow Model in Predicting Breakthrough in Confined Geometries. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Karen N. Son
- School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Justin A. Weibel
- School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - James C. Knox
- Environmental Control and Life Support Development Branch/ES62, NASA Marshall Space Flight Center, Huntsville, Alabama 35811, United States
| | - Suresh V. Garimella
- School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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65
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Laskar II, Hashisho Z, Phillips JH, Anderson JE, Nichols M. Modeling the Effect of Relative Humidity on Adsorption Dynamics of Volatile Organic Compound onto Activated Carbon. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:2647-2659. [PMID: 30730707 DOI: 10.1021/acs.est.8b05664] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A two-dimensional heterogeneous mathematical model was developed and validated to study the effect of relative humidity on volatile organic compound (VOC) adsorption onto activated carbon. The dynamic adsorption model consists of the macroscopic mass, momentum, and energy conservation equations and includes a multicomponent adsorption isotherm to predict the competitive adsorption equilibria between VOC and water vapor, which is described by an extended Manes method. Experimental verifications show that the model predicted the breakthrough profiles during competitive adsorption of the studied VOCs (2-propanol, acetone, n-butanol, toluene, 1,2,4-trimethylbenzene) at relative humidity range 0-95% with an overall mean relative absolute error (MRAE) of 11.8% for dry (0% RH) conditions and 17.2% for humid (55 and 95% RH) conditions, and normalized root-mean-square error (NRMSE) of 5.5 and 8.4% for dry and humid conditions, respectively. Sensitivity analysis was also conducted to test the robustness of the model in accounting for the impact of relative humidity on VOC adsorption by varying the adsorption temperature. Good agreement was observed between the experimental and simulated results with an overall MRAE of 12.4 and 7.1% for the breakthrough profiles and adsorption capacity, respectively. The model can be used to quantify the impact of carrier gas relative humidity during adsorption of contaminants from gas streams, which is useful when optimizing adsorber design and operating conditions.
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Affiliation(s)
- Imranul I Laskar
- Department of Civil and Environmental Engineering , University of Alberta , Edmonton , Alberta T6G 1H9 , Canada
| | - Zaher Hashisho
- Department of Civil and Environmental Engineering , University of Alberta , Edmonton , Alberta T6G 1H9 , Canada
| | - John H Phillips
- Environmental Quality Office , Ford Motor Company , Dearborn , Michigan 48126 , United States
| | - James E Anderson
- Research and Advanced Engineering , Ford Motor Company , Dearborn , Michigan 48121 , United States
| | - Mark Nichols
- Research and Advanced Engineering , Ford Motor Company , Dearborn , Michigan 48121 , United States
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66
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Pereira JPC, Overbeek W, Gudiño-Reyes N, Andrés-García E, Kapteijn F, van der Wielen LAM, Straathof AJJ. Integrated Vacuum Stripping and Adsorption for the Efficient Recovery of (Biobased) 2-Butanol. Ind Eng Chem Res 2019; 58:296-305. [PMID: 30774191 PMCID: PMC6369677 DOI: 10.1021/acs.iecr.8b03043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 11/29/2018] [Accepted: 12/12/2018] [Indexed: 11/29/2022]
Abstract
![]()
Biobased
2-butanol offers high potential as biofuel, but its toxicity
toward microbial hosts calls for efficient techniques to alleviate
product inhibition in fermentation processes. Aiming at the selective
recovery of 2-butanol, the feasibility of a process combining in situ vacuum stripping followed by vapor adsorption has
been assessed using mimicked fermentation media. The experimental
vacuum stripping of model solutions and corn stover hydrolysate closely
aligned with mass transfer model predictions. However, the presence
of lignocellulosic impurities affected 2-butanol recovery yields resulting
from vapor condensation, which decreased from 96 wt % in model solutions
to 40 wt % using hydrolysate. For the selective recovery of 2-butanol
from a vapor mixture enriched in water and carbon dioxide, silicalite
materials were the most efficient, particularly at low alcohol partial
pressures. Integrating in situ vacuum stripping with
vapor adsorption using HiSiv3000 proved useful to effectively concentrate
2-butanol above its azeotropic composition (>68 wt %), facilitating
further product purification.
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67
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Iyer SS, Demirel SE, Hasan MMF. Combined Natural Gas Separation and Storage Based on in Silico Material Screening and Process Optimization. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02690] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shachit S. Iyer
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - Salih E. Demirel
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - M. M. Faruque Hasan
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
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68
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69
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Mazur LP, Cechinel MAP, de Souza SMAGU, Boaventura RAR, Vilar VJP. Brown marine macroalgae as natural cation exchangers for toxic metal removal from industrial wastewaters: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 223:215-253. [PMID: 29933140 DOI: 10.1016/j.jenvman.2018.05.086] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/22/2018] [Accepted: 05/26/2018] [Indexed: 05/22/2023]
Abstract
The discharge of inadequately treated or untreated industrial wastewaters has greatly contributed to the release of contaminants into the environment, including toxic metals. Toxic metals are persistent and bioaccumulative, being their removal from wastewaters prior to release into water bodies of great concern. Literature reports the use of brown marine macroalgae for toxic metals removal from aqueous solutions as an economic and eco-friendly technique, even when applied to diluted solutions. Minor attention has been given to the application of this technique in the treatment of real wastewaters, which present a complex composition that can compromise the biosorption performance. Therefore, the main goal of this comprehensive review is to critically outline studies that: (i) applied brown marine macroalgae as natural cation exchanger for toxic metals removal from real and complex matrices; (ii) optimised the biosorption process in a fixed-bed column, which was further scaled-up to pilot plants. An overview of toxic metals sources, chemistry and toxicity, which are relevant aspects to understand and develop treatment techniques, is initially presented. The problem of water resources pollution by toxic metals and more specifically the participation of metal finishing industries in the environmental contamination are issues also covered. The current and potential decontamination methods are presented including a discussion of their advantages and drawbacks. The literature on biosorption was reviewed in detail, considering especially the ion exchange properties of cell wall constituents, such as alginate and fucoidan, and their role in metal sequestration. Besides that, a detailed description of biosorption process design, especially in continuous mode, and the application of mechanistic models is addressed.
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Affiliation(s)
- Luciana P Mazur
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Chemical Engineering Department, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal; Laboratório de Transferência de Massa e Simulação Numérica de Sistemas Químicos (LABSIN-LABMASSA), Federal University of Santa Catarina, PO Box 476, CEP 88040-900 Florianópolis, SC, Brazil.
| | - Maria A P Cechinel
- Laboratório de Transferência de Massa e Simulação Numérica de Sistemas Químicos (LABSIN-LABMASSA), Federal University of Santa Catarina, PO Box 476, CEP 88040-900 Florianópolis, SC, Brazil; Laboratory of Reactors and Industrial Process, University of Extremo Sul Catarinense, CEP 88806-000, Criciúma, SC, Brazil
| | - Selene M A Guelli U de Souza
- Laboratório de Transferência de Massa e Simulação Numérica de Sistemas Químicos (LABSIN-LABMASSA), Federal University of Santa Catarina, PO Box 476, CEP 88040-900 Florianópolis, SC, Brazil
| | - Rui A R Boaventura
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Chemical Engineering Department, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Vítor J P Vilar
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Chemical Engineering Department, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.
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70
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Moore T, Mumford KA, Stevens GW, Webley PA. Enhancement in specific absorption rate by solvent microencapsulation. AIChE J 2018. [DOI: 10.1002/aic.16366] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Thomas Moore
- Dept. of Chemical Engineering; University of Melbourne; Melbourne Victoria 3010 Australia
| | - Kathryn A. Mumford
- Dept. of Chemical Engineering; University of Melbourne; Melbourne Victoria 3010 Australia
| | - Geoffrey W. Stevens
- Dept. of Chemical Engineering; University of Melbourne; Melbourne Victoria 3010 Australia
| | - Paul A. Webley
- Dept. of Chemical Engineering; University of Melbourne; Melbourne Victoria 3010 Australia
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71
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Magalhães Siqueira R, Vilarrasa-García E, Belo Torres AE, Silva de Azevedo DC, Bastos-Neto M. Simple Procedure to Estimate Mass Transfer Coefficients from Uptake Curves on Activated Carbons. Chem Eng Technol 2018. [DOI: 10.1002/ceat.201800091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rafael Magalhães Siqueira
- Universidade Federal do Ceará; Department of Chemical Engineering; Campus do Pici 60455-760 Fortaleza Brasil
| | - Enrique Vilarrasa-García
- Universidade Federal do Ceará; Department of Chemical Engineering; Campus do Pici 60455-760 Fortaleza Brasil
| | - Antônio Eurico Belo Torres
- Universidade Federal do Ceará; Department of Chemical Engineering; Campus do Pici 60455-760 Fortaleza Brasil
| | | | - Moisés Bastos-Neto
- Universidade Federal do Ceará; Department of Chemical Engineering; Campus do Pici 60455-760 Fortaleza Brasil
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72
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Stanford JP, Hall PH, Rover MR, Smith RG, Brown RC. Separation of sugars and phenolics from the heavy fraction of bio-oil using polymeric resin adsorbents. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.11.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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73
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Vemula RR, Sircar S. Effect of adsorbent heterogeneity on performance of a PSA process for bulk gas separation: a parametric simulation. ADSORPTION 2018. [DOI: 10.1007/s10450-018-9947-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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74
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Ohs B, Lohaus J, Marten D, Hannemann-Tamás R, Krieger A, Wessling M. Optimized Hollow Fiber Sorbents and Pressure Swing Adsorption Process for H2 Recovery. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b05368] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Burkhard Ohs
- RWTH Aachen University - AVT.CVT, 52074 Aachen, Germany
| | | | - Dennis Marten
- RWTH Aachen University - AVT.CVT, 52074 Aachen, Germany
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75
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76
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Ma Q, Chen Z, Liu H. Multiple-relaxation-time lattice Boltzmann simulation for flow, mass transfer, and adsorption in porous media. Phys Rev E 2018; 96:013313. [PMID: 29347115 DOI: 10.1103/physreve.96.013313] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Indexed: 11/07/2022]
Abstract
In this paper, to predict the dynamics behaviors of flow and mass transfer with adsorption phenomena in porous media at the representative elementary volume (REV) scale, a multiple-relaxation-time (MRT) lattice Boltzmann (LB) model for the convection-diffusion equation is developed to solve the transfer problem with an unsteady source term in porous media. Utilizing the Chapman-Enskog analysis, the modified MRT-LB model can recover the macroscopic governing equations at the REV scale. The coupled MRT-LB model for momentum and mass transfer is validated by comparing with the finite-difference method and the analytical solution. Moreover, using the MRT-LB method coupled with the linear driving force model, the fluid transfer and adsorption behaviors of the carbon dioxide in a porous fixed bed are explored. The breakthrough curve of adsorption from MRT-LB simulation is compared with the experimental data and the finite-element solution, and the transient concentration distributions of the carbon dioxide along the porous fixed bed are elaborated upon in detail. In addition, the MRT-LB simulation results show that the appearance time of the breakthrough point in the breakthrough curve is advanced as the mass transfer resistance in the linear driving force model increases; however, the saturation point is prolonged inversely.
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Affiliation(s)
- Qiang Ma
- Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, People's Republic of China.,Faculty of Engineering, University of Nottingham, University Park, Nottingham NG72RD, United Kingdom.,Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology, School of Energy and Environment, Nanjing 210096, People's Republic of China
| | - Zhenqian Chen
- Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology, School of Energy and Environment, Nanjing 210096, People's Republic of China
| | - Hao Liu
- Faculty of Engineering, University of Nottingham, University Park, Nottingham NG72RD, United Kingdom
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77
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Kennedy DA, Carter D, Wilson S, Kruczek B, Tezel FH. Pore plugging synthesis and characterization of silicalite-1 membranes using tubular TiO2supports: Effect of support pore size on membrane performance. CAN J CHEM ENG 2018. [DOI: 10.1002/cjce.23095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Dean A. Kennedy
- Department of Chemical and Biological Engineering; University of Ottawa; 161 Louis Pasteur, Ottawa ON K1N 6N5 Canada
| | - David Carter
- Department of Chemical and Biological Engineering; University of Ottawa; 161 Louis Pasteur, Ottawa ON K1N 6N5 Canada
| | - Sean Wilson
- Department of Chemical and Biological Engineering; University of Ottawa; 161 Louis Pasteur, Ottawa ON K1N 6N5 Canada
| | - Boguslaw Kruczek
- Department of Chemical and Biological Engineering; University of Ottawa; 161 Louis Pasteur, Ottawa ON K1N 6N5 Canada
| | - F. Handan Tezel
- Department of Chemical and Biological Engineering; University of Ottawa; 161 Louis Pasteur, Ottawa ON K1N 6N5 Canada
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78
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Krishna R. A Maxwell-Stefan-Glueckauf description of transient mixture uptake in microporous adsorbents. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.09.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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79
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Li S, Deng S, Zhao L, Zhao R, He J, Sun T. Numerical investigations and mathematical models of carbon capture by adsorption-A review. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.egypro.2017.12.498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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80
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Vemula RR, Sircar S. Comparative performance of an adiabatic and a nonadiabatic PSA process for bulk gas separation—a numerical simulation. AIChE J 2017. [DOI: 10.1002/aic.15740] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rama Rao Vemula
- Dept. of Chemical and Biomolecular EngineeringLehigh UniversityBethlehem PA18015
| | - Shivaji Sircar
- Dept. of Chemical and Biomolecular EngineeringLehigh UniversityBethlehem PA18015
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81
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Kim H, Yang S, Rao SR, Narayanan S, Kapustin EA, Furukawa H, Umans AS, Yaghi OM, Wang EN. Water harvesting from air with metal-organic frameworks powered by natural sunlight. Science 2017; 356:430-434. [DOI: 10.1126/science.aam8743] [Citation(s) in RCA: 842] [Impact Index Per Article: 120.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Accepted: 04/04/2017] [Indexed: 01/20/2023]
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82
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Pereira JPC, Lopez-Gomez G, Reyes NG, van der Wielen LAM, Straathof AJJ. Prospects and challenges for the recovery of 2-butanol produced by vacuum fermentation - a techno-economic analysis. Biotechnol J 2017; 12. [DOI: 10.1002/biot.201600657] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 02/26/2017] [Accepted: 03/02/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Joana P. C. Pereira
- Department of Biotechnology; Delft University of Technology; Delft The Netherlands
| | - Gustavo Lopez-Gomez
- Department of Biotechnology; Delft University of Technology; Delft The Netherlands
| | - Noelia G. Reyes
- Department of Biotechnology; Delft University of Technology; Delft The Netherlands
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83
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Anderson DM, Yun TM, Kottke PA, Fedorov AG. Comprehensive Analysis of Sorption Enhanced Steam Methane Reforming in a Variable Volume Membrane Reactor. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b04392] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- David M. Anderson
- G. W.
Woodruff School of Mechanical Engineering and ‡Parker H. Petit Institute of Bioengineering
and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Thomas M. Yun
- G. W.
Woodruff School of Mechanical Engineering and ‡Parker H. Petit Institute of Bioengineering
and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Peter A. Kottke
- G. W.
Woodruff School of Mechanical Engineering and ‡Parker H. Petit Institute of Bioengineering
and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Andrei G. Fedorov
- G. W.
Woodruff School of Mechanical Engineering and ‡Parker H. Petit Institute of Bioengineering
and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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84
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Fu Q, Zhou Y, Shen Y, Yan H, Li D, Qin Y, Zhang D. R23/R22 Separation and Recovery Using the DIST-PSA Hybrid System. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b03701] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qiang Fu
- Collaborative Innovation
Center of Chemical Science and Engineering, School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
| | - Yan Zhou
- Collaborative Innovation
Center of Chemical Science and Engineering, School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
| | - Yuanhui Shen
- Collaborative Innovation
Center of Chemical Science and Engineering, School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
| | - Haiyu Yan
- Collaborative Innovation
Center of Chemical Science and Engineering, School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
| | - Dongdong Li
- Collaborative Innovation
Center of Chemical Science and Engineering, School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
| | - Yingjie Qin
- Collaborative Innovation
Center of Chemical Science and Engineering, School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
| | - Donghui Zhang
- Collaborative Innovation
Center of Chemical Science and Engineering, School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, China
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85
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86
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Beh C, Webley P. The Dynamic Response and Characteristics of an Oxygen Vacuum Swing Adsorption Process to Step Perturbations. Part 1. Open Loop Responses. ADSORPT SCI TECHNOL 2016. [DOI: 10.1260/026361703322405051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Oxygen vacuum swing adsorption (VSA) has emerged as an important unit operation in many chemical engineering processes such as iron and aluminium smelting, making oxygen the third largest man-made chemical commodity in the world. Although a mature technology (with the first patents published in the 1970s), oxygen VSA processes are still not well understood due to their complicated batch-like operation, inherent non-linearities and inverse responses associated with the operating conditions. Step perturbations of manipulated variables together with the process response provide valuable information for the study of system dynamics, the extent of interaction and control loop pairings. The first part of this study presents data from input perturbations gathered from a pilot-scale experimental oxygen VSA process. The interesting time-variant temperature profiles, and bed and system pressures, flows and purity are the main focus of the discussion. Furthermore, the possible applications of this knowledge for heuristic-based control are discussed.
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Affiliation(s)
- C.C.K. Beh
- Department of Chemical Engineering, P.O. Box 36, Monash University, Victoria 3800, Australia
| | - P.A. Webley
- Department of Chemical Engineering, P.O. Box 36, Monash University, Victoria 3800, Australia
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87
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88
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Lefebvre D, Amyot P, Ugur B, Tezel FH. Adsorption Prediction and Modeling of Thermal Energy Storage Systems: A Parametric Study. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04767] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dominique Lefebvre
- Department of Chemical and
Biological Engineering, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Patrice Amyot
- Department of Chemical and
Biological Engineering, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Burcu Ugur
- Department of Chemical and
Biological Engineering, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - F. Handan Tezel
- Department of Chemical and
Biological Engineering, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
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89
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Knox JC, Ebner AD, LeVan MD, Coker RF, Ritter JA. Limitations of Breakthrough Curve Analysis in Fixed-Bed Adsorption. Ind Eng Chem Res 2016; 55:4734-4748. [PMID: 31359909 DOI: 10.1021/acs.iecr.6b00516] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This work examined in detail the a priori prediction of the axial dispersion coefficient from available correlations versus obtaining both it and mass transfer information from experimental breakthrough data and the consequences that may arise when doing so based on using a 1-D axially dispersed plug flow model and its associated Danckwerts outlet boundary condition. These consequences mainly included determining the potential for erroneous extraction of the axial dispersion coefficient and/or the LDF mass transfer coefficient from experimental data, especially when nonplug flow conditions prevailed in the bed. Two adsorbent/adsorbate cases were considered, i.e., CO2 and H2O vapor in zeolite 5A, because they both experimentally exhibited significant nonplug flow behavior, and the H2O-zeolite 5A system exhibited unusual concentration front sharpening that destroyed the expected constant pattern behavior (CPB) when modeled with the 1-D axially dispersed plug flow model. Overall, this work showed that it was possible to extract accurate mass transfer and dispersion information from experimental breakthrough curves using a 1-D axial dispersed plug flow model when they were measured both inside and outside the bed. To ensure the extracted information was accurate, the inside the bed breakthrough curves and their derivatives from the model were plotted to confirm whether or not the adsorbate/adsorbent system was exhibiting CPB or any concentration front sharpening near the bed exit. Even when concentration front sharpening was occurring with the H2O-zeolite 5A system, it was still possible to use the experimental inside and outside the bed breakthrough curves to extract fundamental mass transfer and dispersion information from the 1-D axial dispersed plug flow model based on the systematic methodology developed in this work.
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Affiliation(s)
- James C Knox
- George C. Marshall Space Flight Center, National Aeronautics and Space Administration, Huntsville, Alabama 35812, United States
| | - Armin D Ebner
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - M Douglas LeVan
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Robert F Coker
- George C. Marshall Space Flight Center, National Aeronautics and Space Administration, Huntsville, Alabama 35812, United States
| | - James A Ritter
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
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90
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Yang B, Xu EL, Li M. Purification of coal mine methane on carbon molecular sieve by vacuum pressure swing adsorption. SEP SCI TECHNOL 2016. [DOI: 10.1080/01496395.2016.1140205] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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91
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Tan X, Vagi L, Liu Q, Choi P, Gray MR. Sorption equilibrium and kinetics for cyclohexane, toluene, and water on Athabasca oil sands solids. CAN J CHEM ENG 2016. [DOI: 10.1002/cjce.22389] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaoli Tan
- Department of Chemical and Materials Engineering; University of Alberta; Edmonton AB T6G 2V4 Canada
| | - Lisa Vagi
- Department of Chemical and Materials Engineering; University of Alberta; Edmonton AB T6G 2V4 Canada
| | - Qi Liu
- Department of Chemical and Materials Engineering; University of Alberta; Edmonton AB T6G 2V4 Canada
| | - Phillip Choi
- Department of Chemical and Materials Engineering; University of Alberta; Edmonton AB T6G 2V4 Canada
| | - Murray R. Gray
- Department of Chemical and Materials Engineering; University of Alberta; Edmonton AB T6G 2V4 Canada
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92
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Slavik I, Uhl W, Börnick H, Worch E. Assessment of SOC adsorption prediction in activated carbon filtration based on Freundlich coefficients calculated from compound properties. RSC Adv 2016. [DOI: 10.1039/c5ra21005d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Three models using compound properties to calculate Freundlich constants for adsorption of SOCs on activated carbon were evaluated using data obtained from the literature and in our own experiments.
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Affiliation(s)
- I. Slavik
- Wahnbachtalsperrenverband
- 53721 Siegburg
- Germany
- Technische Universität Dresden
- Chair of Water Supply Engineering
| | - W. Uhl
- Norwegian Institute for Water Research (NIVA)
- 0349 Oslo
- Norway
- Technische Universität Dresden
- Chair of Water Supply Engineering
| | - H. Börnick
- Technische Universität Dresden
- Institute of Water Chemistry
- 01062 Dresden
- Germany
| | - E. Worch
- Technische Universität Dresden
- Institute of Water Chemistry
- 01062 Dresden
- Germany
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93
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Lueking AD, Wang CY, Sircar S, Malencia C, Wang H, Li J. A generalized adsorption-phase transition model to describe adsorption rates in flexible metal organic framework RPM3-Zn. Dalton Trans 2016; 45:4242-57. [DOI: 10.1039/c5dt03432a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rate of adsorption to a flexible metal-organic framework is described via generalization of the Avrami theory of phase transition kinetics.
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Affiliation(s)
- Angela D. Lueking
- Department of Energy & Mineral Engineering and EMS Energy Institute
- The Pennsylvania State University
- USA
- Department of Chemical Engineering
- The Pennsylvania State University
| | - Cheng-Yu Wang
- Department of Energy & Mineral Engineering and EMS Energy Institute
- The Pennsylvania State University
- USA
| | - Sarmishtha Sircar
- Department of Energy & Mineral Engineering and EMS Energy Institute
- The Pennsylvania State University
- USA
| | | | - Hao Wang
- Department of Chemistry and Chemical Biology
- Rutgers University
- Piscataway
- USA
| | - Jing Li
- Department of Chemistry and Chemical Biology
- Rutgers University
- Piscataway
- USA
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94
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Techniques for direct experimental evaluation of structure-transport relationships in disordered porous solids. ADSORPTION 2016; 22:993-1000. [PMID: 32269424 PMCID: PMC7115062 DOI: 10.1007/s10450-016-9806-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 08/03/2016] [Accepted: 08/05/2016] [Indexed: 12/02/2022]
Abstract
Determining structure–transport relationships is critical to optimising the activity and selectivity performance of porous pellets acting as heterogeneous catalysts for diffusion-limited reactions. For amorphous porous systems determining the impact of particular aspects of the void space on mass transport often requires complex characterization and modelling steps to deconvolve the specific influence of the feature in question. These characterization and modelling steps often have limited accuracy and precision. It is the purpose of this work to present a case-study demonstrating the use of a more direct experimental evaluation of the impact of pore network features on mass transport. The case study evaluated the efficacy of the macropores of a bidisperse porous foam structure on improving mass transport over a purely mesoporous system. The method presented involved extending the novel integrated gas sorption and mercury porosimetry method to include uptake kinetics. Results for the new method were compared with those obtained by the alternative NMR cryodiffusometry technique, and found to lead to similar conclusions. It was found that the experimentally-determined degree of influence of the foam macropores was in line with expectations from a simple resistance model for a disconnected macropore network.
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95
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Valenciano R, Aylón E, Izquierdo MT. A Critical Short Review of Equilibrium and Kinetic Adsorption Models for VOCs Breakthrough Curves Modelling. ADSORPT SCI TECHNOL 2015. [DOI: 10.1260/0263-6174.33.10.851] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Raquel Valenciano
- Universidad San Jorge. Autovía A23 Zaragoza-Huesca km 510. 50830 Villanueva de Gállego, Zaragoza. Spain
| | - Elvira Aylón
- Instituto de Carboquímica, ICB-CSIC. C/Miguel Luesma, 4. 50018 Zaragoza. Spain
| | - M. Teresa Izquierdo
- Instituto de Carboquímica, ICB-CSIC. C/Miguel Luesma, 4. 50018 Zaragoza. Spain
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96
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Miguet M, Goetz V, Plantard G, Jaeger Y. Removal of a Chlorinated Volatile Organic Compound (Perchloroethylene) from the Aqueous Phase by Adsorption on Activated Carbon. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b02364] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marianne Miguet
- CNRS Promes, Rambla
de la Thermodynamique Tecnosud, 66100 Perpignan, France
- Veolia eau, 765 rue Henri Becquerel, 34967 Montpellier, France
| | - Vincent Goetz
- CNRS Promes, Rambla
de la Thermodynamique Tecnosud, 66100 Perpignan, France
| | - Gaël Plantard
- CNRS Promes, Rambla
de la Thermodynamique Tecnosud, 66100 Perpignan, France
- Université de Perpignan Via Domitia, 52 avenue Paul Alduy, 66860 Perpignan, France
| | - Yves Jaeger
- Veolia eau, 765 rue Henri Becquerel, 34967 Montpellier, France
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97
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Anderson DM, Nasr MH, Yun TM, Kottke PA, Fedorov AG. Sorption-Enhanced Variable-Volume Batch–Membrane Steam Methane Reforming at Low Temperature: Experimental Demonstration and Kinetic Modeling. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b01879] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David M. Anderson
- G.W. Woodruff School of Mechanical Engineering and ‡Parker H. Petit
Institute of Bioengineering
and Bioscience, Georgia Institute of Technology, Atlanta Georgia 30332, United States
| | - Mohamed H. Nasr
- G.W. Woodruff School of Mechanical Engineering and ‡Parker H. Petit
Institute of Bioengineering
and Bioscience, Georgia Institute of Technology, Atlanta Georgia 30332, United States
| | - Thomas M. Yun
- G.W. Woodruff School of Mechanical Engineering and ‡Parker H. Petit
Institute of Bioengineering
and Bioscience, Georgia Institute of Technology, Atlanta Georgia 30332, United States
| | - Peter A. Kottke
- G.W. Woodruff School of Mechanical Engineering and ‡Parker H. Petit
Institute of Bioengineering
and Bioscience, Georgia Institute of Technology, Atlanta Georgia 30332, United States
| | - Andrei G. Fedorov
- G.W. Woodruff School of Mechanical Engineering and ‡Parker H. Petit
Institute of Bioengineering
and Bioscience, Georgia Institute of Technology, Atlanta Georgia 30332, United States
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98
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Guo Y, Zhao C, Li C. CO2Adsorption Kinetics of K2CO3/Activated Carbon for Low-Concentration CO2Removal from Confined Spaces. Chem Eng Technol 2015. [DOI: 10.1002/ceat.201400383] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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99
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Vemula RR, Kothare MV, Sircar S. Anatomy of a rapid pressure swing adsorption process performance. AIChE J 2015. [DOI: 10.1002/aic.14779] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rama Rao Vemula
- Dept. of Chemical and Biomolecular Engineering; Lehigh University; Bethlehem PA 18015
| | - Mayuresh V. Kothare
- Dept. of Chemical and Biomolecular Engineering; Lehigh University; Bethlehem PA 18015
| | - Shivaji Sircar
- Dept. of Chemical and Biomolecular Engineering; Lehigh University; Bethlehem PA 18015
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100
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Náfrádi B, Choucair M, Southon PD, Kepert CJ, Forró L. Strong interplay between the electron spin lifetime in chemically synthesized graphene multilayers and surface-bound oxygen. Chemistry 2014; 21:770-7. [PMID: 25394656 DOI: 10.1002/chem.201404309] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Indexed: 11/10/2022]
Abstract
The electron spin lifetime in an assembly of chemically synthesized graphene sheets was found to be extremely sensitive to oxygen. Introducing small concentrations of physisorbed O2 onto the graphene surface reduced the exceptionally long 140 ns electron spin lifetime by an order of magnitude. This effect was completely reversible: Removing the O2 by using a dynamic vacuum restored the spin lifetime. The presence of covalently bound oxygen also decreased the electron spin lifetime in graphene, although to a far lesser extent compared to physisorbed O2 . The conduction electrons in graphene were found to play a significant role by counter-balancing the spin depolarization caused by oxygen molecules. Our results highlight the importance of chemical environment control and device packing in practical graphene-based spintronic applications.
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Affiliation(s)
- Bálint Náfrádi
- Institute of Physics of Complex Matter EPFL, Lausanne (Switzerland).
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