【摘要】 采用搅拌反应器,通过改变初始亚硫酸铵浓度、pH值、空气流量、温度以及硫酸铵浓度、不加催化剂,对氨法烟气脱硫产物亚硫酸铵氧化反应动力学进行了研究。实验结果表明:在硫酸铵浓度为0.15 mol/L、温度为35～60℃的溶液中、氧化空气流量为150～400 L/h时,亚硫酸铵的氧化速率随着pH值增加而下降,随着温度和空气流量的增加而增大;当硫酸铵浓度增大时,亚硫酸铵的氧化速率下降;在pH值为5.5时反应的活化能为31.88 kJ/mol。更多还原

【Abstract】 A stirred vessel is used to study the oxidation kinetics of desulfurization residual product-ammonium sulfite without catalyst by change of the concentration of ammonium sulfite,pH value,air flow,temperature and ammonium sulfate.the results indicate that the oxidation rate increases with air flow and temperature and decreases with pH value when the concentration of ammonium sulfate is 0.15 mol/L,temperature from 35 to 60℃ and air flow from 150 to 400 L/h;the oxidation rate decreases with ammonium sulfate;the apparent activation energy for the overall reaction is 31.88 kJ/mol.更多还原