Global climate change has recently become a major environmental problem in the world. The emission of CO2 from fossil fuel combustion is the main cause of this change, amongst of which, the coal burning accounts for a large proportion of CO2 emission. The absorption of CO2 by ammonia solution with the advantages of high efficiency and low regeneration energy has recently become a hotspot in the area of CO2 reduction. This paper studied the CO2 absorption and regeneration processes using ammonia solution und...