烟气汞脱除的研究进展  

Research progress of mercury removal in flue gas

作　　者：谭增强[1,2] 牛国平[2] 

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710049 [2]西安热工研究院有限公司,陕西西安710032

出　　处：《热力发电》2013年第10期1-8,共8页Thermal Power Generation

摘　　要：从全球及我国汞污染的现状出发,介绍了汞的来源、危害、汞在燃烧过程中的迁徙转化规律,重点综述了国内外对汞脱除技术的研究发展现状,包括燃烧前脱汞、燃烧中脱汞和燃烧后脱汞。分别对碳基汞吸附剂和非碳基脱汞材料进行了分类介绍,总结了卤素改性、硫改性、金属及金属氧化物改性的碳基吸附剂和飞灰,以及矿石类吸附剂、金属及金属氧化物、新型可再生磁性沸石、纳米脱汞材料4种非碳基脱汞材料的脱汞特性和主要研究成果,并分析比较了各种脱汞技术,对存在的问题进行了探讨。The toxic mercury has drawn worldwide attention,especially China's coal-dominated energy consumption structure leads to serious mercury pollution.It is necessary to strengthen the control of mercury.The sources,hazards and migration mechanism of mercury during the combustion were briefly introduced.Moreover,the research development of mercury control technology at home and abroad was reviewed,including the mercury removal before,during and after combustion,among which the post-combustion control technology was focused.The carbon-based sorbents for mercury and non-carbon-based materials were also presented.The mercury removal characteristics and main research findings of carbon-based sorbents(modified by halogen,sulfur,metal and metal oxides),fly ash,and four non-carbon-based mercury removal materials(such as mineral adsorbents,metal and metal oxides,new renewable magnetic zeolite and nano mercury removal material)were summarized.Finally,each mercury control technology was compared,and the existing problems were discussed.

关 键 词：煤燃烧 烟气 脱汞 吸附剂 催化剂 

分 类 号：X511[环境科学与工程—环境工程]