Economic Comparison of Three Gas Separation Technologies for CO2 Capture from Power Plant Flue Gas

查看全文 作　　者：YANG Hongjun FAN Shuanshi LANG Xuemei WANG Yanhong NIE [1]Jianghua

机构地区：[1]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, South China University of Technology, Guangzhou 510640, China

出　　处：《Chinese Journal of Chemical Engineering》索引2011年第19卷第4期,共6页

基　　金：Supported by the National High Technology Research and Development Program of China (2007AA03Z229);the Fundamental Research Funds for the Central Universities (2009ZM0185) 摘　　要：Three gas separation technologies,chemical absorption,membrane separation and pressure swing adsorption,are usually applied for CO2 capture from flue gas in coal-fired power plants.In this work,the costs of the three technologies are analyzed and compared.The cost for chemical absorption is mainly from $30 to $60 per ton(based on CO2 avoided),while the minimum value is $10 per ton(based on CO2 avoided).As for membrane separation and pressure swing adsorption,the costs are $50 to $78 and $40 to $63 per ton(based on CO2 avoided),respectively.Measures are proposed to reduce the cost of the three technologies.For CO2 capture and storage process,the CO2 recovery and purity should be greater than 90%.Based on the cost,recovery,and purity,it seems that chemical absorption is currently the most cost-effective technology for CO2 capture from flue gas from power plants.However,membrane gas separation is the most promising alternative approach in the future,provided that membrane performance is further improved. 关键词：二氧化碳回收技术经济燃煤电厂分离技术烟气气体膜分离捕集化学吸收

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Economic Comparison of Three Gas Separation Technologies for CO2 Capture from Power Plant Flue Gas

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