气候变化领域集成服务门户(CCPortal): Economically viable CO2electroreduction embedded within ethylene oxide manufacturing

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DOI	10.1039/d0ee03310c
	Economically viable CO2electroreduction embedded within ethylene oxide manufacturing
	Barecka M.H.; Ager J.W.; Lapkin A.A.
发表日期	2021
ISSN	17545692
起始页码	1530
结束页码	1543
卷号	14 期号:3
英文摘要	Electrochemical conversion of CO2 (CO2R) into fuels and chemicals can both reduce CO2 emissions and allow for clean manufacturing in the scenario of significant expansion of renewable power generation. However, large-scale process deployment is currently limited by unfavourable process economics resulting from significant up- and down-stream costs for obtaining pure CO2, separation of reaction products and increased logistical effort. We have discovered a method for economically viable recycling of waste CO2 that addresses these challenges. Our approach is based on integration of a CO2R unit into an existing manufacturing process: ethylene oxide (EO) production, which emits CO2 as a by-product. The standard EO process separates waste CO2 from the gas stream, hence the substrate for electroreduction is available at an EO plant at no additional cost. CO2 can be converted into an ethylene-rich stream and recycled on-site back to the EO reactor, which uses ethylene as a raw material, and also the anode product (oxygen) can be simultaneously valorized for the EO production reaction. If powered by a renewable electricity source, the process will significantly (ca. 80%) reduce the CO2 emissions of an EO manufacturing plant. A sensitivity analysis shows that the recycling approach can be economically viable in the short term and that its payback time could be as low as 1-2 years in the regions with higher carbon taxes and/or with access to low-cost electricity sources. © 2021 The Royal Society of Chemistry.
英文关键词	Aliphatic compounds; Carbon dioxide; Cost benefit analysis; Economics; Electrolytic reduction; Ethylene; Recycling; Sensitivity analysis; Clean manufacturing; Electrochemical conversion; Low-cost electricity; Manufacturing plant; Manufacturing process; Recycling of wastes; Renewable electricity; Renewable power generation; Costs; carbon dioxide; economic analysis; ethylene; reduction
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190743
作者单位	Cambridge Centre for Advanced Research and Education in Singapore, Cares Ltd., 1 CREATE Way, CREATE Tower #05-05, Singapore, 138602, Singapore; Berkeley Educational Alliance for Research in Singapore (BEARS), Ltd., 1 CREATE Way, Singapore, 138602, Singapore; Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, CA 94720, United States; Materials Sciences Division, Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, United Kingdom
推荐引用方式 GB/T 7714	Barecka M.H.,Ager J.W.,Lapkin A.A.. Economically viable CO2electroreduction embedded within ethylene oxide manufacturing[J],2021,14(3).
APA	Barecka M.H.,Ager J.W.,&Lapkin A.A..(2021).Economically viable CO2electroreduction embedded within ethylene oxide manufacturing.Energy & Environmental Science,14(3).
MLA	Barecka M.H.,et al."Economically viable CO2electroreduction embedded within ethylene oxide manufacturing".Energy & Environmental Science 14.3(2021).