Abstract: CO2 capture using ammonia method has become an emerging research hot point due to its characteristics of high removal efficiency，low cost，high absorption capacity etc. The mechanisms about CO2 capture by ammonia method and solution desorption after decarbonization were introduced in the paper. Research progress in this process was reviewed. Several problems affected the application of this technology were analyzed，such as mechanism research，ammonia leakage and energy consumption etc. Industrial test and combined desulfurization and decarbonization should be carried out in near future，so as to push forward the industrial application as soon as possible.

Key words: ammonia method, CO2 removal, flue gas of power plant, research progress

摘要： 氨法碳捕集因具有脱除效率高、低成本、高吸收容量等特点，而成为目前CO2捕集的研究热点之一。本文阐述了氨法吸收CO2与脱碳后溶液解吸的主要机理，综述了国内外该法的研究进展，分析了影响该技术应用的几个方面问题，比如机理研究、氨逃逸、解吸能耗等，提出今后应开展氨法碳捕集的工业化试验以及联合脱硫脱碳方面研究，尽快使该工艺得以工业化应用。

关键词: 氨法, CO2脱除, 电厂烟气, 研究进展