Recent developments in aqueous ammonia-based post-combustion CO2 capture technologies

作     者：Hai Yu 

作者机构：CSIRO Energy10 Murray Dwyer Circuit Mayfield West NSW 2304 Australia 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2018年第26卷第11期

页      面：2255-2265页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 

主　　题：Aqueous ammonia NH3 Post-combustion capture Ammonia loss Regeneration energy Amines 

摘      要：Aqueous ammonia(NH3) is a promising alternative solvent for the capture of industrial CO_2 emissions, given its high chemical stability and CO_2 removal capacity, and low material costs and regeneration energy. NH3 also has potential for capturing multiple flue gas components, including NOx, SOxand CO_2, and producing value-added chemicals. However, its high volatility and low reactivity towards CO_2 limit its economic viability. Considerable efforts have been made to advance aqueous NH3-based post-combustion capture technologies in the last few years: in particular, General Electric s chilled NH3 process, CSIRO s mild-temperature aqueous NH3 process and SRI International s mixed-salts(NH3 and potassium carbonate) technology. Here, we review these research activities and other developments in the field, and outline future research needed to further improve aqueous NH3-based CO_2 capture technologies.