中国电力2018，Vol.51Issue(3)：170-176,7.DOI:10.11930/j.issn.1004-9649.201611113
燃煤烟气中零价汞的催化氧化理论研究进展
Review on Theoretical Research of the Catalytic Oxidation of Hg0 in Coal-Fired Flue Gas
赵莉 1刘宇 1吴洋文 1庄柯 2陆强1
作者信息
- 1. 生物质发电成套设备国家工程实验室(华北电力大学)北京 102206
- 2. 国电环境保护研究院,江苏南京210031
- 折叠
摘要
Abstract
Mercury is one of the heavy metal element pollution in the flue gas of coal-fired power generation,with elemental mercury (Hg0),oxidized mercury (Hg2+) and particulate mercury (HgP) as its main existing forms.Since Hg0 is difficult to be removed,it is usually oxidized to Hg2+,which can be removed easily with the help of catalysts.Hg0 oxidation catalyst can be divided into three major types according to their different sources and functions,i.e.,coal-fired fly ash,conventional Hg0 oxidation catalyst,and cooperative de-NOx and Hg-removal catalyst.In this paper,the present status of the density functional theory (DFT) study of oxidation reaction of Hg0 under different catalysts is reviewed.Then the mechanisms of adsorption and oxidation reaction of Hg0 on various catalysts are summarized and the contents and results of some similar studies are compared.In addition,the deficiency of the current research is pointed out and the future development trend of DFT calculation study of Hg0 oxidation catalyst is put forward.关键词
燃煤电站/汞排放/汞脱除/零价汞,汞催化氧化/密度泛函理论Key words
Coal-fired plant/Hg emission/Hg removal/Hg0, catalytic oxidation of Hg/Density Functional Theory分类
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赵莉,刘宇,吴洋文,庄柯,陆强..燃煤烟气中零价汞的催化氧化理论研究进展[J].中国电力,2018,51(3):170-176,7.
