卤素添加脱除燃煤烟气汞机理研究及工业应用  

Oxidation mechanism and industrial application of mercury emission from coal-fired flue gas with halogen

作　　者：段振亚[1,2] 李韶璞 张磊 焦煜 黄文博[1,2] 王书肖[2] DUAN Zhen-ya;LI Shao-pu;ZHANG Lei;JIAO Yu;HUANG Wen-bo;WANG Shu-xiao(College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao 266061,Shandong Province,China;State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex,Beijing 100084,China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061 [2]国家环境保护大气复合污染来源与控制重点实验室,北京100084

出　　处：《化学工程》2018年第9期6-11,共6页Chemical Engineering(China)

基　　金：山东省高等学校科技计划项目(J15LC16);国家重点基础研究发展计划(973)项目(2013CB430001);威海市科技发展计划项目(2016GGX022)

摘　　要：燃煤烟气汞排放是我国人为汞污染的主要来源,卤素添加能将烟气中的单质汞转化为易被脱除的汞形态。文中对国内外学者在卤素添加促进烟气汞脱除方面的研究成果进行了收集与分析,分别对卤素添加促进单质汞转化的机理、模拟实验及工业应用的现状进行了归纳总结。在此基础上,对卤素添加促进烟气汞脱除技术目前亟待解决的关键问题及其发展前景进行了展望,认为应将均相反应和非均相反应结合起来去解释其氧化机理,加强工业应用实验研究并逐步建立工程实例的数据库,以期对燃煤烟气汞脱除技术的理论研究和工程设计提供有益的参考和帮助。Mercury emission from coal-fired flue gas is the main source of mercury pollution in China.The addition of halogen can promote the effective conversion of elemental mercury into other form mercury which can be removed.The research achievements of halogen adding to remove mercury in coal-fired flue gas made by domestic and foreign scholars were collected and analyzed,and the mechanism,simulation experiment and industrial application research of halogen adding to promote elemental mercury oxidation were summarized in this paper.On this basis,the key problems and future development prospects of halogen adding to remove mercury in coal-fired flue gas were prospected.Homogeneous and heterogeneous reactions should be combined to explain oxidation mechanism,and industrial application experimental research should be strengthened to build up a database of engineering examples.It can provide useful guidance and help for theoretical research and engineering design of reducing mercury emission from coal-fired power plants in China.

关 键 词：烟气汞排放 卤素添加 氧化机理 研究进展 

分 类 号：X131.1[环境科学与工程—环境科学]