Abstract:
The experiment of aqueous catalytic oxidation SO2/NO of flue gas was carried out by using catalysts of Fe2+,Mn2+,Zn2+ and Al3+.The influence and the varying law of acid concentration of absorbing solution,the optimum concentration of catalyst,operation conditions on the efficiency of catalytic oxidation SO2/NO were studied.Research showed that when the concentration of Fe2+,Mn2+,Zn2+,Al3+ were(0.5%),0.2%,0.5%,1.0% respectively,the gas flow was 0.1 m3/h,circulated liquid flow was 6—8 L/h,the efficiency of catalytic oxidation SO2/NO can be achieved above 95% and 50% respectively by this method.