燃煤烟气脱汞吸附剂研究进展

Research progress of adsorbents for mercury removal from coal fired flue gas

综合叙述了不同种类脱汞材料性能,分析对比了国内外各种脱汞(Hg0)材料技术处理气态汞研究进展,整理了包括近年新发展的脱汞吸附剂材料,探究了不同吸附剂材料的脱汞机制与性能。从作用物种、反应产物和脱除途径等角度比较详细介绍了吸附的脱汞技术,讨论了这些技术对脱除(Hg0)的作用机制和影响。通过开发复合改性材料、提出高效脱除新方法、合成功能优异的新材料,对发展新的脱除方法具有指导性的建议,为进一步研究选用合适气相脱汞的材料提供参考。

This paper comprehensively describes the performance of different kinds of mercury removal materials,analyzes and compares the research progress of various mercury removal(Hg 0)materials at home and abroad in treating gaseous mercury,sorts out the mercury removal adsorbent materials,including those newly developed in recent years,and explores the mercury removal mechanism and performance of different adsorbent materials.The adsorption mercury removal technologies are introduced in detail from the perspectives of action species,reaction products and removal pathways,and the mechanism and impact of these technologies on the removal of(Hg 0)are discussed.Through the development of composite modified materials,the proposal of new efficient removal methods and the synthesis of new materials with excellent functions,there are instructive suggestions for the development of new removal methods,which provide a reference for further research and selection of suitable materials for vapor phase mercury removal.