燃煤锅炉烟气脱汞技术的研究与进展

Current Advances of Mercury Removal Technology from Flue Gas in Coal-fired Boiler

近年来全球范围内由燃煤电厂排放的烟气造成的汞污染日趋严重,如何对汞污染进行治理已经成为国内外广大学者重点研究的问题。文中对目前已有的脱汞技术进行了综述,从脱汞的基础原理出发,着重对利用现有的污染物控制装置进行协同脱汞技术、吸附剂脱汞技术进行了详细讨论,分析并介绍了各脱汞技术的优缺点。通过以上的对比分析,并综合考虑经济成本和脱汞效率展望了符合我国燃煤电厂当前现状的脱汞发展方向。

The mercury pollution caused by the flue gas emission from coal -fired power plant in the global range become increasingly serious in recent years. How to control the pollution of mercury has become an important issue studied by foreign and domestic scholars. The current mercury removal technology will be reviewed in this paper. Start from the basic principle of mercury removal, and this paper will focus on using synergistic mercury removal technology or elemental mercury removal technologywith the existing pollutant control devices. The advantages and disadvantages of mercury removal technology will be analyzed and introduced in this paper. Through the above comparative analysis and consider two aspect of the economic cost and mercury removal efficiency comprehensively to look ahead the development direction of removal of mercury which accord with the current situation of coal - fired power plants in China.