LAUSR

SO2 (S) adsorption kinetics on the powdered activated carbons (AC) was performed in a laboratory-scale drop tube furnace. )e reaction conditions affecting the adsorption of SO2, such as AC/S molar ratio, temperature, the concentration of SO2, O2, and H2O, and AC circulation rate, were studied. )e powdered AC rapidly adsorbs SO2 in the initial 1.2 seconds and then the amount of SO2 adsorption slowly increases.)e SO2 removal rate increases with the increasing of AC/S molar ratio, the decreasing of adsorption temperature, and inlet SO2 concentration. )e O2 and H2O are beneficial to SO2 removal by powdered AC. SO2 removal rate drops to 6.83% after 14 cyclic adsorptions.)e powdered AC circulation increases SO2 removal rate from 62.35% to 99.42% with AC circulation ratio� 7. )e SO2 adsorption kinetics can be predicted by Bangham model.