Factors Affecting Quality Loss of Sintering Flue Gas Treated by Activated Carbon Irradiated by Microwave

In this work,taking activated carbon as the research object,by changing the microwave heating temperature,heating time,activated carbon weight,SO₂ concentration and NO concentration,the influence law of mass loss during the treatment of sintering flue gas by activated carbon under the condition of microwave irradiation was investigated.The results show that the increase of microwave temperature can accelerate the loss of activated carbon mass.When the microwave temperature is 800 ℃,the loss rate of activated carbon mass reaches 13.75%.The prolonged heating time will increase the mass loss of activated carbon.When the heating time is 15 min,the loss rate reaches the maximum value of 9.7%.Increasing the quality of activated carbon is beneficial to reduce the mass loss of activated carbon.When the mass of activated carbon is 50 g,the minimum loss rate is 4.04%.Increasing the concentration of each component of sintering flue gas can reduce the mass loss of activated carbon.When concentrations of SO₂ and NO are 1 200 ×10^-6 and 1 000 ×10^-6,respectively,the according minimum loss rates are 2.57% and 3.28%,respectively.