Volumetric Mass Transfer Coefficient of Low Concentration SO2 Absorption in Aqueous Ammonia in Packaged Tower

KGa of SO2 in flue gas of coal fired power plant was measured and calculated by aqueous ammonia in packed column, and discussed about the influence of inlet concentration of SO2, liquid-gas ratio, aqueous ammonia concentration and different packages on KGa. The results showed that KGa declined with the increase of inlet concentration of SO2, increased with the increase of aqueous ammonia concentration and liquid-gas ratio.