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Gaffey J, Collins MN, Styles D. Review of methodological decisions in life cycle assessment (LCA) of biorefinery systems across feedstock categories. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 358:120813. [PMID: 38608573 DOI: 10.1016/j.jenvman.2024.120813] [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: 05/23/2023] [Revised: 01/14/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024]
Abstract
The application of life cycle assessment (LCA) to biorefineries is a necessary step to estimate their environmental sustainability. This review explores contemporary LCA biorefinery studies, across different feedstock categories, to understand approaches in dealing with key methodological decisions which arise, including system boundaries, consequential or attributional approach, allocation, inventory data, land use changes, product end-of-life (EOL), biogenic carbon storage, impact assessment and use of uncertainty analysis. From an initial collection of 81 studies, 59 were included within the final analysis, comprising 22 studies which involved dedicated feedstocks, 34 which involved residue feedstocks (including by-products and wastes), and a further 3 studies which involved multiple feedstocks derived from both dedicated and secondary sources. Many studies do not provide a comprehensive LCA assessment, often lacking detail on decisions taken, omitting key parts of the value chain, using generic data without uncertainty analyses, or omitting important impact categories. Only 28% of studies included some level of primary data, while 39% of studies did not undertake an uncertainty or sensitivity analysis. Just 8% of studies included data related to dLUC with a further 8% including iLUC, and only 14% of studies considering product end of life within their scope. The authors recommend more transparency in biorefinery LCA, with justification of key methodological decisions. A full value-chain approach should be adopted, to fully assess burdens and opportunities for biogenic carbon storage. We also propose a more prospective approach, taking into account future use of renewable energy sources, and opportunities for increasing circularity within bio-based value chains.
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Affiliation(s)
- James Gaffey
- School of Engineering and AMBER, University of Limerick, Limerick, V94 T9PX, Ireland; Circular Bioeconomy Research Group, Shannon Applied Biotechnology Centre, Munster Technological University, Tralee, V92 CX88, Ireland.
| | - Maurice N Collins
- School of Engineering and AMBER, University of Limerick, Limerick, V94 T9PX, Ireland
| | - David Styles
- University of Galway, University Road, Galway, H91 REW4, Ireland
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2
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Sakheta A, Nayak R, O'Hara I, Ramirez J. A review on modelling of thermochemical processing of biomass for biofuels and prospects of artificial intelligence-enhanced approaches. BIORESOURCE TECHNOLOGY 2023; 386:129490. [PMID: 37460019 DOI: 10.1016/j.biortech.2023.129490] [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: 05/31/2023] [Revised: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 07/23/2023]
Abstract
Biofuels from lignocellulosic biomass converted via thermochemical technologies can be renewable and sustainable, which makes them promising as alternatives to conventional fossil fuels. Prior to building industrial-scale thermochemical conversion plants, computational models are used to simulate process flows and conditions, conduct feasibility studies, and analyse process and business risk. This paper aims to provide an overview of the current state of the art in modelling thermochemical conversion of lignocellulosic biomass. Emphasis is given to the recent advances in artificial intelligence (AI)-based modelling that plays an increasingly important role in enhancing the performance of the models. This review shows that AI-based models offer prominent accuracy compared to thermodynamic equilibrium modelling implemented in some models. It is also evident that gasification and pyrolysis models are more matured than thermal liquefaction for lignocelluloses. Additionally, the knowledge gained and future directions in the applications of simulation and AI in process modelling are explored.
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Affiliation(s)
- Aban Sakheta
- Centre for Agriculture and the Bioeconomy, Faculty of Science, Queensland University of Technology, 2 George St, Brisbane City, Queensland 4000, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology, 2 George St, Brisbane City, Queensland 4000, Australia
| | - Richi Nayak
- School of Computer Science, Faculty of Science, Queensland University of Technology, 2 George St, Brisbane City, Queensland 4000, Australia; Centre for Data Science, Queensland University of Technology, 2 George Street, Brisbane, 4000, QLD, Australia
| | - Ian O'Hara
- Centre for Agriculture and the Bioeconomy, Faculty of Science, Queensland University of Technology, 2 George St, Brisbane City, Queensland 4000, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology, 2 George St, Brisbane City, Queensland 4000, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology (QUT), 2 George Street, Brisbane, Australia
| | - Jerome Ramirez
- Centre for Agriculture and the Bioeconomy, Faculty of Science, Queensland University of Technology, 2 George St, Brisbane City, Queensland 4000, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology, 2 George St, Brisbane City, Queensland 4000, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology (QUT), 2 George Street, Brisbane, Australia.
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Liu N, He Y, Wang K, Chen F, Yao J, Yang G, Huang S, Shao L, Tsubaki N. Tuning the Acid-Base Properties of Lignin-Derived Carbon Modulated ZnZr/SiO 2 Catalysts for Selective and Efficient Production of Butadiene from Ethanol. Molecules 2023; 28:6632. [PMID: 37764410 PMCID: PMC10536710 DOI: 10.3390/molecules28186632] [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: 07/02/2023] [Revised: 09/05/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
The direct selective conversion of ethanol to butadiene (ETB) is a competitive and environmentally friendly process compared to the traditional crude cracking route. The acid-base properties of catalysts are crucial for the direct ETB process. Herein, we report a rationally designed multifunctional lignin-derived carbon-modulated ZnZr/SiO2 (L-ZnZr/SiO2) catalyst with suitable acid-base properties for the direct ETB reaction. A variety of characterization techniques are employed to investigate the relationship between the acid-base properties and catalytic performance of the multifunctional lignin-modulated ZnZr/SiO2 catalysts. The results revealed that the rationally additional lignin-modulated carbon enhances both the acidity and basicity of the ZnZr/SiO2 catalysts, providing a suitable acid-base ratio that boosts the direct ETB reactivity. Meanwhile, the 1% L-ZnZr/SiO2 catalyst possessed ethanol conversion and butadiene selectivity as high as 98.4% and 55.5%, respectively, and exhibited excellent catalytic stability.
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Affiliation(s)
- Na Liu
- Ministry of Forestry Bioethanol Research Center, School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China;
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan; (Y.H.); (K.W.); (F.C.); (J.Y.); (G.Y.)
| | - Yingluo He
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan; (Y.H.); (K.W.); (F.C.); (J.Y.); (G.Y.)
| | - Kangzhou Wang
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan; (Y.H.); (K.W.); (F.C.); (J.Y.); (G.Y.)
| | - Fei Chen
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan; (Y.H.); (K.W.); (F.C.); (J.Y.); (G.Y.)
| | - Jie Yao
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan; (Y.H.); (K.W.); (F.C.); (J.Y.); (G.Y.)
| | - Guohui Yang
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan; (Y.H.); (K.W.); (F.C.); (J.Y.); (G.Y.)
| | - Shufang Huang
- Department of Environmental Monitoring, College of Changsha Environmental Protection, Changsha 410004, China;
| | - Lishu Shao
- Ministry of Forestry Bioethanol Research Center, School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China;
| | - Noritatsu Tsubaki
- Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan; (Y.H.); (K.W.); (F.C.); (J.Y.); (G.Y.)
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Kim H, Kim J, Won W. Toward Economical and Sustainable Production of Renewable Plastic: Integrative System-Level Analyses. CHEMSUSCHEM 2022; 15:e202200240. [PMID: 35438828 DOI: 10.1002/cssc.202200240] [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: 01/31/2022] [Revised: 04/08/2022] [Indexed: 06/14/2023]
Abstract
2,5-Furandicarboxylic acid (FDCA) is one of the promising renewable plastic monomers enabling to address several environmental issues, instead of petroleum-based terephthalic acid (TPA). In this study, an integrative process for the co-production of FDCA and furfural as well as activated carbon was developed, and the economic feasibility and environmental sustainability for the proposed process were evaluated. In the proposed process, there were major four catalytic conversion reactions: (1) hydrolysis of biomass to its derivatives (cellulose, hemicellulose, and lignin), (2) dehydration of hemicellulose to furfural, (3) dehydration of cellulose to 5-hydroxymethylfurfural (HMF), and (4) successive oxidation of HMF to FDCA. Particularly, a heat exchanger network coupled with a heat pump was established to minimize the utility consumption, thereby reducing 72 % of the heating requirement. Techno-economic analysis revealed that the minimum selling price of FDCA was $1380 ton-1 , which is comparable to that of petroleum-based TPA ($1445 ton-1 ). Uncertainty analysis using the Monte Carlo simulation method was employed to quantify the risk associated with the unforeseen market condition. From the life-cycle assessment, we observed that the proposed process is more environmentally sustainable than conventional TPA production in terms of climate change and fossil depletion metrics.
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Affiliation(s)
- Hyunwoo Kim
- Department of Chemical Engineering (Integrated Engineering), Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, 17104, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Jiyong Kim
- School of Chemical Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, 16419, Suwon-si, Gyeonggi-do, Republic of Korea
| | - Wangyun Won
- Department of Chemical Engineering (Integrated Engineering), Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, 17104, Yongin-si, Gyeonggi-do, Republic of Korea
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Matsuda A, Sato F, Yamada Y, Sato S. Efficient production of 1,3-butadiene from 1,4-butanediol over Yb2O3 catalyst prepared through hydrothermal aging. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20210457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Asami Matsuda
- Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba, 263-8522
| | - Fumiya Sato
- Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyocho, Matsuyama, Ehime, 790-8577
| | - Yasuhiro Yamada
- Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba, 263-8522
| | - Satoshi Sato
- Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba, 263-8522
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Matsumura Y, Matsuda A, Yamada Y, Sato S. Selective Production of 1,3-Butadiene from 1,3-Butanediol over Y 2Zr 2O 7 Catalyst. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210070] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yoshitaka Matsumura
- Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba 263-8522, Japan
| | - Asami Matsuda
- Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba 263-8522, Japan
| | - Yasuhiro Yamada
- Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba 263-8522, Japan
| | - Satoshi Sato
- Graduate School of Engineering, Chiba University, Yayoi, Inage, Chiba 263-8522, Japan
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Influence of Copper and Silver on Catalytic Performance of MgO–SiO2 System for 1,3-Butadiene Production from Aqueous Ethanol. Catal Letters 2021. [DOI: 10.1007/s10562-021-03704-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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8
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Abstract
Life cycle assessment (LCA) has received attention as a tool to evaluate the environmental impacts of products and services. In the last 20 years, research on the topic has increased, and now more than 25,000 articles are related to LCA in scientific journals databases such as the Scopus database; however, the concept is relatively new in Africa, where the number of networks has been highlighted to be very low when compared to the other regions. This paper focuses on a review of life cycle assessments conducted in Africa over the last 20 years. It aims at highlighting the current research gap for African LCA. A total of 199 papers were found for the whole continent; this number is lower than that for both Japan and Germany (more than 400 articles each) and nearly equal to developing countries such as Thailand. Agriculture is the sector which received the most attention, representing 53 articles, followed by electricity and energy (60 articles for the two sectors). South Africa (43), Egypt (23), and Tunisia (19) were the countries where most of the research was conducted. Even if the number of articles related to LCA have increased in recent years, many steps still remain. For example, establishing a specific life cycle inventory (LCI) database for African countries or a targeted ideal life cycle impact assessment (LCIA) method. Several African key sectors could also be assessed further.
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Khounani Z, Hosseinzadeh-Bandbafha H, Nazemi F, Shaeifi M, Karimi K, Tabatabaei M, Aghbashlo M, Lam SS. Exergy analysis of a whole-crop safflower biorefinery: A step towards reducing agricultural wastes in a sustainable manner. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 279:111822. [PMID: 33348185 DOI: 10.1016/j.jenvman.2020.111822] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 11/29/2020] [Accepted: 12/07/2020] [Indexed: 06/12/2023]
Abstract
The huge amount of agro-wastes generated due to expanding agricultural activities can potentially cause serious environmental and human health problems. Using the biorefinery concept, all parts of agricultural plants can be converted into multiple value-added bioproducts while reducing waste generation. This approach can be viewed as an effective strategy in developing and realizing a circular bioeconomy by accomplishing the dual goals of waste mitigation and energy recovery. However, the sustainability issue of biorefineries should still be thoroughly scrutinized using comprehensive resource accounting methods such as exergy-based approaches. In light of that, this study aims to conduct a detailed exergy analysis of whole-crop safflower biorefinery consisting of six units, i.e., straw handling, biomass pretreatment, bioethanol production, wastewater treatment, oil extraction, and biodiesel production. The analysis is carried out to find the major exergy sink in the developed biorefinery and discover the bottlenecks for further performance improvements. Overall, the wastewater treatment unit exhibits to be the major exergy sink, amounting to over 70% of the total thermodynamic irreversibility of the process. The biomass pretreatment and bioethanol production units account for 12.4 and 10.3% of the total thermodynamic inefficiencies of the process, respectively. The exergy rates associated with bioethanol, biodiesel, lignin, biogas, liquid digestate, seed cake, sodium sulfate, and glycerol are determined to be 5918.5, 16516.8, 10778.9, 1741.4, 6271.5, 15755.8, 3.4, and 823.5 kW, respectively. The overall exergetic efficiency of the system stands at 72.7%, demonstrating the adequacy of the developed biorefinery from the thermodynamic perspective.
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Affiliation(s)
- Zahra Khounani
- Henan Province Engineering Research Center for Forest Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China; Microbial Biotechnology Department, Agricultural Biotechnology Institute of Iran (ABRII), Agricultural Research, Education, and Extension Organization (AREEO), Karaj, Iran
| | | | - Farshid Nazemi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Marzieh Shaeifi
- Department of Chemical Engineering, Vrije Universiteit Brussel, 1050, Brussels, Belgium
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran; Department of Chemical Engineering, Vrije Universiteit Brussel, 1050, Brussels, Belgium
| | - Meisam Tabatabaei
- Henan Province Engineering Research Center for Forest Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China; Microbial Biotechnology Department, Agricultural Biotechnology Institute of Iran (ABRII), Agricultural Research, Education, and Extension Organization (AREEO), Karaj, Iran; Biofuel Research Team (BRTeam), Terengganu, Malaysia; Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia.
| | - Mortaza Aghbashlo
- Henan Province Engineering Research Center for Forest Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China; Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran.
| | - Su Shiung Lam
- Henan Province Engineering Research Center for Forest Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China; Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia.
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10
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Scown CD, Baral NR, Yang M, Vora N, Huntington T. Technoeconomic analysis for biofuels and bioproducts. Curr Opin Biotechnol 2021; 67:58-64. [PMID: 33477090 DOI: 10.1016/j.copbio.2021.01.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 12/27/2020] [Accepted: 01/05/2021] [Indexed: 12/01/2022]
Abstract
Technoeconomic analysis (TEA) is an approach for conducting process design and simulation, informed by empirical data, to estimate capital costs, operating costs, mass balances, and energy balances for a commercial scale biorefinery. TEA serves as a useful method to screen potential research priorities, identify cost bottlenecks at the earliest stages of research, and provide the mass and energy data needed to conduct life-cycle environmental assessments. Recent studies have produced new tools and methods to enable faster iteration on potential designs, more robust uncertainty analysis, and greater accessibility through the use of open-source platforms. There is also a trend toward more expansive system boundaries to incorporate the impact of policy incentives, use-phase performance differences, and potential impacts on global market supply.
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Affiliation(s)
- Corinne D Scown
- Life-cycle, Economics, and Agronomy Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Energy Analysis and Environmental Impacts Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Energy & Biosciences Institute, University of California, Berkeley, CA 94720, United States.
| | - Nawa Raj Baral
- Life-cycle, Economics, and Agronomy Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Minliang Yang
- Life-cycle, Economics, and Agronomy Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Nemi Vora
- Life-cycle, Economics, and Agronomy Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Tyler Huntington
- Life-cycle, Economics, and Agronomy Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
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Fedotov AS, Uvarov VI, Tsodikov MV, Moiseev II, Paul S, Heyte S, Simon P, Marinova M, Dumeignil F. Synthesis of 1,3-Butadiene from 1-Butanol on a Porous Ceramic [Fe,Cr]/γ-Al2O3(K,Ce)/α-Al2O3 Catalytic Converter. KINETICS AND CATALYSIS 2020. [DOI: 10.1134/s002315842003009x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Akhade SA, Winkelman A, Lebarbier Dagle V, Kovarik L, Yuk SF, Lee MS, Zhang J, Padmaperuma AB, Dagle RA, Glezakou VA, Wang Y, Rousseau R. Influence of Ag metal dispersion on the thermal conversion of ethanol to butadiene over Ag-ZrO2/SiO2 catalysts. J Catal 2020. [DOI: 10.1016/j.jcat.2020.03.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Pomalaza G, Arango Ponton P, Capron M, Dumeignil F. Ethanol-to-butadiene: the reaction and its catalysts. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00784f] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Catalytic conversion of ethanol is a promising technology for producing sustainable butadiene. This paper reviews the reaction and its catalysts, and discusses the challenges their development faces.
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Improvement of 1,3-Butadiene Separation in 2,3-Butanediol Dehydration Using Extractive Distillation. Processes (Basel) 2019. [DOI: 10.3390/pr7070410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study was performed to investigate the extractive distillation for 1,3-butadiene (1,3-BD) purification as a part of the 2,3-butanediol (2,3-BDO) dehydration process. The separation of 1,3-BD from 1-butene produced as a 2,3-BDO dehydration by-product while using distillation is complicated due to the similar volatilities of the two compounds. Thus, an extractive distillation system is proposed for the effective recovery of 1,3-BD, and is compared with a conventional distillation system in terms of its performance and economic feasibility. A higher 1,3-BD recovery rate was achieved while using the proposed system and the relative profitabilities of both separation systems were analyzed according to the market price of 1,3-BD, which is a decisive variable for economic feasibility.
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15
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Liu C, Wu L, Sun H, Chen Y, Geng Z. Simulation and Exergy Analysis of Recovering Acetaldehyde and Ethanol in 1,3-Butadiene Production. Chem Eng Technol 2019. [DOI: 10.1002/ceat.201800371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Cheng Liu
- Tianjin University; Key Laboratory for Green Chemical Technology of Ministry of Education; R&D Center for Petrochemical Technology; Weijin Road 92# 300072 Tianjin China
- Collaborative Innovation Center of Chemical Science and Engineering; Weijin Road 92# 300072 Tianjin China
| | - Linlin Wu
- Tianjin University; Key Laboratory for Green Chemical Technology of Ministry of Education; R&D Center for Petrochemical Technology; Weijin Road 92# 300072 Tianjin China
- Collaborative Innovation Center of Chemical Science and Engineering; Weijin Road 92# 300072 Tianjin China
| | - Huanhuan Sun
- Tianjin University; Key Laboratory for Green Chemical Technology of Ministry of Education; R&D Center for Petrochemical Technology; Weijin Road 92# 300072 Tianjin China
- Collaborative Innovation Center of Chemical Science and Engineering; Weijin Road 92# 300072 Tianjin China
| | - Yixuan Chen
- Tianjin University; Key Laboratory for Green Chemical Technology of Ministry of Education; R&D Center for Petrochemical Technology; Weijin Road 92# 300072 Tianjin China
- Collaborative Innovation Center of Chemical Science and Engineering; Weijin Road 92# 300072 Tianjin China
| | - Zhongfeng Geng
- Tianjin University; Key Laboratory for Green Chemical Technology of Ministry of Education; R&D Center for Petrochemical Technology; Weijin Road 92# 300072 Tianjin China
- Collaborative Innovation Center of Chemical Science and Engineering; Weijin Road 92# 300072 Tianjin China
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16
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Gao Y, Emge TJ, Krogh-Jespersen K, Goldman AS. Selective Dehydrogenative Coupling of Ethylene to Butadiene via an Iridacyclopentane Complex. J Am Chem Soc 2018; 140:2260-2264. [PMID: 29338213 DOI: 10.1021/jacs.7b11689] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An iridium complex is found to catalyze the selective dehydrogenative coupling of ethylene to 1,3-butadiene. The key intermediate, and a major resting state, is an iridacyclopentane that undergoes a surprisingly facile β-H elimination, enabled by a partial dechelation (κ3-κ2) of the supporting 3,5-dimethylphenyl-2,6-bis(oxazolinyl) ligand.
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Affiliation(s)
- Yang Gao
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , New Brunswick, New Jersey 08903, United States
| | - Thomas J Emge
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , New Brunswick, New Jersey 08903, United States
| | - Karsten Krogh-Jespersen
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , New Brunswick, New Jersey 08903, United States
| | - Alan S Goldman
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , New Brunswick, New Jersey 08903, United States
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