An economic analysis of twenty light olefin production pathways

查看全文 作　　者：Zhitong [1,2,3]Zhao;Jingyang [1]Jiang;Feng [2]Wang

机构地区：[1]State Key Laboratory of Fine Chemicals,College of Chemistry,Faculty of Chemical Environmental and Biological Science and Technology,Dalian University of Technology,Dalian 116024,Liaoning,China;[2]State Key Laboratory of Catalysis,Dalian National Laboratory for Clean Energy,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,Liaoning,China;[3]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Journal of Energy Chemistry》索引2021年第30卷第5期,共10页

基　　金：financially supported by the National Natural Science Foundation of China(21721004,21961130378,21711530020);the Ministry of Science and Technology of the People’s Republic of China(2018YFE0117300);Dalian Science and Technology Innovation Fund(2019J11CY009)。 摘　　要：A comprehensive economic analysis of twenty light olefin production pathways has been performed,covering current and promising processes from fossil(petroleum,coal and natural gas)and renewable resources(biomass and CO_(2)).Taking steam cracking of naphtha as the benchmark,this study gives an economic perspective and points out the bottleneck in different olefin production pathways.The assessment indicates that nearly all renewable pathways are economically unattractive currently and the raw material cost accounts for dominant contribution in most pathways,especially in the oil-,natural gas-and CO_(2)-derived pathways.For the ways of methanol-to-olefins and methanol-to-propylene,fossil pathways are cost-competitive according to the date of current Chinese market prices.However,the price of feedstock hydrogen needs to be lowered by 55%to fill the cost gap between CO_(2)-derived pathways and the benchmark.For the ways of oxidative coupling of methane and Fischer-Tropsch synthesis to olefins,fossil pathways enable cost-competitive processes by feedstock price fall,but further process improvement is required to approach benchmark in renewable pathways.Conditionally,a decrease in ethanol price by45%can make ethanol dehydration pathway profitable.In addition,costs can reduce by 4%-23%in different pathways as the production scales expand from 100 to 1000 kt/a,resulting in a change from high cost to economic profit for some of the pathways.The results quantify the need for improvements on feedstock price,scale size and process improvement to achieve competitive production costs. 关键词：ETHYLENE PROPYLENE OLEFIN TECHNO-ECONOMIC Conceptual design

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An economic analysis of twenty light olefin production pathways

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引证文献(3)

耦合文献(54)

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