Factors Affecting Quality Loss of Sintering Flue Gas Treated by Activated Carbon Irradiated by Microwave
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摘要: 以活性炭为研究对象，在微波辐照条件下，通过改变微波加热温度、加热时间、活性炭质量、SO2浓度以及NO浓度，分析了活性炭处理烧结烟气时质量损失的影响规律。结果表明，微波温度的升高能够加快活性炭质量的损失，微波温度为800℃时活性炭质量的损耗率达到13.75%；延长加热时间会提高活性炭质量损失，加热时间为15 min时，损耗率达到最大值9.7%；增大活性炭质量有利于降低活性炭质量损失，活性炭质量为50 g时，损耗率最小值为4.04%；增大烧结烟气各成分的浓度可以减小活性炭质量损失，在SO2和NO浓度分别为1 200×10-6和1 000×10-6时，损耗率最小值分别为2.57%和3.28%。Abstract: 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.
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Key words:
- sintering /
- flue gas /
- activated carbon /
- microwave /
- mass loss
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