化工学报2013，Vol.64Issue(4)：1293-1299,7.DOI:10.3969/j.issn.0438-1157.2013.04.024
燃煤烟气中细颗粒物与共存气态组分对膜吸收CO2的影响
Effect of fine particles and coexistent gaseous components in flue gas on CO2 absorption
摘要
Abstract
Separation of CO2 from wet-process desulfurized flue gas by membrane absorption has been the subject of many studies, but investigations on the membrane process are usually carried out under laboratory conditions using pure single gases or binary gas. Under real conditions, wet-process desulfurized flue gas contains impurities, such as fine particles, H2O and gaseous pollutant, which will influence membrane performance. In this paper, a hollow fiber membrane contactor was put into operation in the wet-process desulfurized flue gas and the effects of fine particles, water vapor and SO2 on the performance and integrity of the membrane were investigated. The results show that fine particles deposited on the membrane surface reduce CO2 absorption efficiency, and the stability of membranes can be improved significantly by decreasing the concentration of fine particles in the flue gas. The competitive adsorption of SO2 is not obvious since its content is much lower than that of CO2. It will be helpful to eliminate the water vapor by drying with back blowing gas after some period of time, so that the membrane module can work with a good stability.关键词
CO2/膜吸收/细颗粒物/共存气态组分Key words
carbon dioxide/ membrane absorption/ fine particle/ coexistent gaseous components分类
资源环境引用本文复制引用
沙焱,杨林军,陈浩,瞿如敏..燃煤烟气中细颗粒物与共存气态组分对膜吸收CO2的影响[J].化工学报,2013,64(4):1293-1299,7.基金项目
国家自然科学基金项目(51176034). （51176034）
