烟气脱汞技术的研究与展望  

Research and Prospect of Flue Gas Mercury Removal Technology

作　　者：侯淼 刘然 赵俊 吕庆 Hou Miao;Liu Ran;Zhao Jun;Lv Qing(College of m etallurgy and energy, North China University of Science and Technology, Tangshan, Hebei ,China)

机构地区：[1]华北理工大学冶金与能源学院

出　　处：《矿产综合利用》2019年第5期17-21,共5页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金资助项目(51674122);河北省自然科学基金钢铁联合研究基金项目(E2016209367)

摘　　要：综述现有烟气脱汞技术的研究进展及发展现状,对三种技术方案的脱汞效率及技术优缺点进行比较。吸附剂法是目前最成熟的一种烟气脱汞技术,通过增加Hgp所占比例,经除尘装置脱汞效率可达90%;污染物控制设备脱汞技术利用现有的袋式除尘设备能除去烟气中的Hgp,静电除尘器不但能除去Hgp,还能有效氧化吸附Hg0,湿法脱硫技术可去除Hg2+;化学氧化脱汞技术就是将Hg0氧化成易被脱除的Hg2+的技术,此技术不需对设备进行大的改动,可以解决已有的污染物控制设备不易脱除Hg0的问题。he research progress and development status of the existing technologies for mercury removal from flue gas were reviewed. The efficiency and advantages and disadvantages of the three technologies werecompared.Adsorbent method is the most mature fl ue gas mercury removal technology.By increasing the proportion of Hgp, the mercury removal effi ciency of this method can beup to 90%. Pollutant controlled equipment mercury removal technology using bag-type dust removal equipment and remove the Hgp in the flue gas. The electrostatic precipitator can not only remove Hgp but also eff ectively oxidize and adsorb Hg^0 . Wet desulfurization technology can remove Hg 2+. Chemical oxidation mercury removal technology is a method that can oxidize the Hg 0 into Hg 2+ which can be easily removed. This technology does not require any changes to the equipment, and it can solve the problem that existing pollutant controlled equipment can not easily remove Hg^0 .

关 键 词：烟气 脱汞 吸附剂 化学氧化脱汞技术 催化剂 

分 类 号：TD989[矿业工程—选矿]