Experimental study on absorption of CO2 in flue gas by hydrous ammonia

Emission of CO2 by power plants is one of the urgent problems. That are waiting for solutions. Research on absorption of CO2 in flue gas, by using hydrous ammonia as an adsorbent, is therefore an important topic. The rate of CO2 absorption under various flow volume conditions, of both hydrous ammonia as well as flue gas, has been studied. Results show that, the molar ratio of ammonia to CO2, the concentration of ammonia, the lingering time of flue gas and the temperature, all have noticeable effects on the absorption rate of CO2, which increases with increasing NH3/CO2 molar ratio, with the concentration of hydrous ammonia and also with the flue gas' lingering time, but reduces with rising reaction temperature.