液相催化氧化法烟气脱硫工艺研究

研究以Mn2+作为催化剂的液相催化氧化烟气脱硫工艺,对解决目前中小型燃煤锅炉的污染现状有着重要的意义.针对我国中小型燃煤锅炉烟气的特点,采用了以MnSO4为催化剂的液相催化氧化烟气脱硫工艺.为了优化工艺参数,在实验室建立了实验模型,模拟现场实际运行的状况,对Mn2+为催化剂的脱硫效率影响因素进行了研究.实验结果表明:当SO2浓度小于2000mg/m3,烟气流量1.5 L/min时,吸收液体积20mL,温度为28℃,pH值5～6,Mn2+浓度为0.12 mol/L时,脱硫效率可以达到85%以上.

Experimental study on liquid phase catalyzed oxidation method for flue gas desulfurization

Based on reviewing a lot of major-related literatures and summarizing our previous work,a liquid phase catalytic oxidation flue gas desulfurization (FGD) purification line,which used MnSO4 as a catalyst,was employed to investigate medium and small sized coal-fired boiler in this paper. In order to optimize the process parameters,a model which simulated practical operations was established to study the state of Mn2+ FGD in the laboratory. The results show that when the concentration of SO2 is less than 2000m...