催化还原SO_2为单质硫技术的研究进展  

The Research Progress on Catalytic Reduction of SO_2 to Elemental Sulfur

作　　者：周金海[1] 何正浩[1] 李劲[1] 

机构地区：[1]华中科技大学环境科学与工程学院,武汉430074

出　　处：《工业安全与环保》2007年第3期35-37,共3页Industrial Safety and Environmental Protection

摘　　要：催化还原法脱硫是一种能够直接回收单质硫的烟气脱硫(FGD)技术,近年来倍受关注。尽管催化还原法脱硫技术所采用的催化剂的种类繁多,但是该技术所采用的还原剂的种类却相对较少。以H2、C、CH4、NH3和CO5种还原剂为分类标准,综述了催化还原SO2为单质硫技术的主要研究成果;讨论了相关催化剂的性质和催化反应机理;分析了不同还原脱硫技术的优缺点。最后,论述了催化还原法脱硫有待解决的关键问题与发展趋势。Catalytic reduction of SO2 to elemental sulfur is one kind of flue gas desulfurization（FGD） technique that can directly take back elemental sulfur and close attention is paid in recent years, Though various kinds of catalysts are used in this technique, the kind of reducers is comparatively less. Therefore, starting from H2, C, CH4, NH3, and CO as five reduction agents, the main research achievements of FGD by catalytic reduction are described; meanwhile the properties of catalysts, reaction mechanic-as, and advantages and disadvantages by different reducers are also summarized. Finally the key problems existed in this technology and the devdopment trends are discussed.

关 键 词：催化还原 脱硫技术 催化剂 

分 类 号：X701[环境科学与工程—环境工程]