燃煤CO_(2)的回收利用技术研究进展

Research Progress of Coal-fired CO_(2) Recovery and Utilization Technology

CO_(2)是造成温室效应的最主要气体,本文综述了燃烧后捕集、富氧燃烧捕集及燃烧前捕集三种CO_(2)回收技术的发展及应用情况;鉴于燃煤烟气中CO_(2)分压低,适宜采用化学吸收法捕集CO_(2),重点介绍了氨水、有机胺、热钾碱、强碱等化学吸收剂捕集CO_(2)的机理及应用。

CO_(2) is the main greenhouse gas.In this paper,the development and application of three CO_(2) recovery technologies including post-combustion capture,oxygen-enriched combustion capture and pre-combustion capture are reviewed;in view of the low partial pressure of CO_(2) in the flue gas from coal combustion,it is suitable to use chemical absorption method to collect CO_(2),the mechanism and application of chemical absorbers such as ammonia water,organic amine,hot potassium alkali and strong alkali to capture CO_(2) are introduced.