Activated carbon(Mn2O3/AC)with rich pore structure and good Mn2O3 loading was pre-pared by impregnation method.The effects of Mn2O3/AC on micro wave desulfurization and denitrifica-tion of sintering flue gas at different temperatures,oxygen content and water content were investigated by microwave desulfurization and denitrification experiments.The experimental results show that the desulfurization and denitrification rate of Mn2O3/AC increases with the increase of temperature in the range of 180～420 ℃.The desulfurization rate is 98.2％and the denitrification rate is 80.25％at 420 ℃.Mn2O3/AC can maintain a high level of desulfurization performance at high temperature.The oxygen and water in the sintering flue gas have a certain promoting effect on the microwave desulfuriza-tion and denitrification,but the excessive moisture content is unfavorable to the desulfurization.Mn2O3/AC can meet the requirements of microwave desulfurization and denitrification of complex com-ponents in sintering flue gas,and the desulfurization and denitrification rate can be maintained above 95％under the coexistence of O2 and H2O(g).Mn2O3/AC microwave desulfurization and denitrifica-tion not only generated elemental S and N2,but also generated by-products such as sulfate and ni-trate,which reduced the performance of the loaded activated carbon.
microwaveimmersion methodMn2O3/ACsintering flue gasdesulfurization and denitrification
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