燃煤烟气多污染物协同治理试验研究  

Experimental study on synergistic treatment of multi-pollutants from coal-fired flue gas

作　　者：娄彤 方晓东[2] 陆明智[2] 许仁发 LOU Tong;FANG Xiaodong;LU Mingzhi;XU Renfa(State Environmental Protection Engineering and Technology Center for Power Industrial Dust Control,Fufian Longking Co.Ltd.,Longyan 364000,China;Anhui Huainan Pingwei Power Generation Co.,Ltd.,Huainan 232000,China)

机构地区：[1]福建龙净环保股份有限公司国家环境保护电力工业烟尘治理工程技术中心,福建龙岩364000 [2]安徽淮南平圩发电有限责任公司,安徽淮南232000

出　　处：《洁净煤技术》2018年第5期132-135,141,共5页Clean Coal Technology

基　　金：国家重点研发计划资助项目(2016YFC0203703)

摘　　要：为实现燃煤烟气污染物的深度脱除,在1 000 MW电站燃煤锅炉除尘器入口加装了多功能烟气污染物治理中试装置,并研究了该烟气治理装置对烟气中烟尘、SO_3和Hg等污染物吸附转化特性的影响。结果表明:该装置可以有效解决常规技术无法解决的PM_(2.5)、SO_3和Hg等排放问题。试验工况条件下,烟尘、PM_(10)、PM_(2.5)及PM1的脱除效果非常明显,脱除效率均高于99.3%(<5 mg/m^3,dry normal);当氢氧化钙为吸附剂、Ca/SO_3为1时,SO_3的脱除效果为88.78%(0.77 mg/m^3,dry normal)、Hg的脱除效率为94.272%,其中气态汞的脱除效率为75.883%。In order to reach deep removal of flue gas pollutants,a multi-function gas pollution control system was installed at the inlet of dust collector of a 1 000 MW scale power plant coal fired boiler.The influence of multi-function gas pollution control system on adsorption and transformation properties of the pollutional dust,SO3 and Hg in flue gas were studied.The results show that the device can effectively solve the emission problems which can not be solved by conventional technologies,such as PM2.5,SO3 and Hg.The removal efficiencies of dust,PM10,PM2.5 and PM1 are remarkably under the experimental conditions,and their removal efficiencies are higher than 99. 3%（ 5 mg/m^3,dry normal）.When calcium hydroxide is chosen as the adsorbent with a Ca/S ratio of 1,the removal efficiency of SO3 is 88. 78%（ 0. 77 mg/m^3,dry normal）,and the removal efficiencies of total Hg and gaseous Hg are 94. 272% and 75. 883%,respectively.

关 键 词：吸附转化 协同治理 污染物 深度脱除 

分 类 号：X701[环境科学与工程—环境工程]