摘要
随着公众环保意识的增强,燃煤电厂烟气中汞污染越来越受到人们的关注和重视,燃烧烟气汞控制技术也逐渐成为当前研究热点。介绍了燃煤电厂烟气中汞的形态分布和特性,分析了国内研究现状,综述了燃烧前、燃烧中和燃烧后脱汞技术,重点讨论了燃烧后常用脱汞技术:活性炭吸附剂、钙基类吸附剂和选择性催化还原脱硝技术,同时展示了部分新型脱汞技术,并总结了三种方法的优缺点。对燃煤电厂脱汞技术进行展望,提出了先氧化再利用现有废气处理设施联合脱汞的设想。
Mercury pollution control from coal - fired power plants receives people＇s attention as the awareness of environmen- tal protection increases. The species distribution and characteristics of the coal - fired power plant flue gas mercury are intro- duced. The status of domestic research is analyzed and pre - combustion mercury, combustion and post - combustion mercury re- moval technology are summarized. Common mercury removal technology is focused on post -combustion, activated carbon adsor- bent, calcium - based sorbent, selective catalytic reduction denitration technology, part of the new mercury removal technology is introduced, advantages and disadvantages of the three methods are summarized. The outlook of the technology of coal - fired plant flue gas demercuration are put forward, as well as the idea of first oxidation reuse of existing gas treatment facilities combined de- mercuration.
出处
《环境科学与管理》
CAS
2015年第4期76-78,共3页
Environmental Science and Management
基金
国家自然科学基金项目(31200534)
江苏省环境监测科研基金(1121)
关键词
燃煤电厂
烟气
汞
控制方法
coal - fired power plant
flue gas
mercury
control method
