燃煤锅炉脱汞技术研究进展  

Research progress of mercury removal technology for coal-fired boiler

作　　者：张胜军[1] 许明海[1] 王莉[2] 骆倩[1] 范海燕[1] 高燕[1] 韦彦斐[1] 郦颖[1] 

机构地区：[1]浙江省环境保护科学设计研究院,浙江杭州310007 [2]华北电力大学环境科学与工程学院,河北保定071003

出　　处：《环境污染与防治》2014年第7期74-79,83,共7页Environmental Pollution & Control

基　　金：浙江省重大科技专项重点社会发展项目(No.2011C13022);浙江省科学技术厅创新团队建设与人才培养项目(No.2013F20003);浙江省环境保护科学设计研究院研发中心创新载体建设项目

摘　　要：燃煤锅炉是主要的烟气汞排放源,汞大多存在于亚微米级颗粒中,其对环境和人类造成的影响不容忽视。综述了现阶段燃煤锅炉汞排放控制技术的研究进展,并对各项技术的脱汞效率、影响因素、投资成本、优缺点及应用可行性进行了分析比较。分析表明,利用现有污染物控制设备(除尘装置、脱硝装置、脱硫装置)协同脱汞比较经济有效,也是当前研究的重点;洗煤技术、燃烧方式的改进和添加燃烧附加物可作为辅助措施使用。Coal-fired boiler is the main source of flue gas mercury emission. Mercury is mostly existed in sub-micron particles, which has significant negative impact on the environment and human beings. The commonly used mercury emission control technologies of coal-fired boiler were summarized in this paper. These technologies were analyzed and compared from following aspects of mercury removal efficiency, influencing factors, investment costs, advantages, disadvantages and application feasibilities. Results indicated that the most economical and effective treatment process was the simultaneous mercury removal by current pollution control equipment, such as dust removal device,denitrification device,desulfurization device, this was the research focus in now days lcoal washing technology,improved combustion mode and adding coal additives can be used as auxiliary measures.

关 键 词：燃煤锅炉 烟气 脱汞 控制技术 

分 类 号：X773[环境科学与工程—环境工程]