化工进展2015，Vol.34Issue(9)：3495-3499,5.DOI:10.16085/j.issn.1000-6613.2015.09.046
乙醇胺(MEA)法燃煤电厂CO2捕集系统尾气二次污染分析
Analysis on exhaust secondary pollution of CO2 capture system using MEA in coal-fired power station
摘要
Abstract
A pilot scale post-combustion CO2 capture test using mono ethanol amine(MEA)was conducted in a coal-fired power plant,and the exhaust gas was analyzed using GASMET analyzer. This research investigated MEA volatilization and degradation using GASMET data,CEMS (continuous emission monitoring system) data and laboratory analysis,compared the components of the flue gas before and after system,and discussed the effects of secondary pollution on environment. The results indicated that degradation of MEA mainly occurred in absorber and thermal degradation occurred in stripper,solvent loss was mainly caused by oxidative degradation and volatilization. The main degradation products were ammonia and acetaldehyde,the concentrations of which changed in accordance with MEA consumption rate in solution. And the pre-wash column could decrease acid gases. Therefore,the CO2 capture system could effectively reduce the original pollution from flue gas, even though new pollutions could be generated,considering the small amount (mush less than national standards),this system would not cause secondary pollution.关键词
烟气/CO2捕集/乙醇胺/降解/二次污染Key words
flue gas/CO2 capture/mono ethanol amine(MEA)/degradation/secondary pollution分类
化学化工引用本文复制引用
王昊,侯法柱,尚航,郭东方,刘练波..乙醇胺(MEA)法燃煤电厂CO2捕集系统尾气二次污染分析[J].化工进展,2015,34(9):3495-3499,5.基金项目
国家能源应用技术研究及工程示范项目(NY20111101-1). （NY20111101-1）
