NaClO掺杂K_2FeO_4溶液氧化工艺湿法脱除燃煤烟气中的单质汞研究  

Study on Wetting of Elemental Mercury in Coal-fired Flue Gas by NaClO Oxidation of K_2FeO_4 Solution

作　　者：潘孝庆 潘卫国[1,2] 丁红蕾 PAN Xiaoqing;PAN Weiguo;DING Honglei(Shanghai University of Electric Power,Shanghai 200090,China;Shanghai Power Environment Protection Engineering Technology Research Center,Shanghai 200090,China)

机构地区：[1]上海电力学院,上海200090 [2]上海发电环保工程技术研究中心,上海200090

出　　处：《上海电力学院学报》2018年第5期452-456,共5页Journal of Shanghai University of Electric Power

基　　金：国家自然科学基金(21546014);国家重点研发计划项目(2016YFC0203704);上海市科学技术委员会指南项目(15DZ1200703)

摘　　要：在鼓泡发生器中,利用NaClO结合K_2FeO_4溶液氧化工艺湿法脱除燃煤烟气中的单质汞(Hg^0),主要对温度、pH值、SO_2入口浓度,以及含氧量对Hg^0脱除效率的影响进行了研究。结果发现:NaClO溶液浓度、pH值、SO_2的入口浓度是影响Hg^0汞脱除效率的主要因素;在最佳条件下,Hg^0汞的脱除率可以达到91. 6%。In the bubbling generator, by combining NaCIO with K2FeO4 solution oxidation process, the zero-price mercury is removed. The effect of temperature, pH, SO2 inlet concentration and oxygen content on the efficiency of zero-price mercury efficiency is studied. It is found that the concentration of NaCIO solution and the inlet concentration of pH and SO2 are the main factors af-fecting the efficiency of zero-value mercury removal. Under the optimum conditions, the removal rate of zero-value mercury is 91.6%.

关 键 词：单质汞 脱汞效率 氧化 鼓泡发生器 

分 类 号：TQ09[化学工程] TQ150.9