中国电力2017，Vol.50Issue(9)：105-110,184,7.DOI:10.11930/j.issn.1004-9649.201608129
湿法脱硫工艺对电厂烟气颗粒物排放的影响研究
Study on the Effect of Wet Flue Gas Desulphurization (WFGD) Technology on Flue Gas Particle Emission from Power Plants
摘要
Abstract
To study the effect of wet flue gas desulphurization (WFGD) technology on the emission of flue gas,the flue gas before and after WFGD is sampled to analyze the concentration,particle size distribution,morphology,element composition and contents as well as phase structure of the flue gas particles in a power plant.The results show that the removal efficiency of WFGD on flue gas particles is about 51.07％ with more significant effects on larger particles.At the desulphurization tower outlet,the concentration of particles has diameter less than 2.5 μm is increased.After desulphurization,the aggregation morphology of the flue gas particles changes from chain structure to cluster structure while the aggregates get smaller.The content of Si and Al elements in the flue gas particles are decreased by 36.97％ and 51.15％ respectively,while the content of Ca and Mg elements are increased by 4.67 and 8.64 times respectively after desulphurization.There are about 11.59％ limestone and 23.56％ gypsum matters in the particles at the outlet of WFGD system,and the content of coal fly ash is about 64.85％.关键词
燃煤电厂/石灰石-石膏湿法脱硫/颗粒物/排放/脱除效率/颗粒成分Key words
coal-fired power plant/limestone-gypsum wet flue gas desulphurization/particulate matter/emission/particle removal efficiency/particle component分类
资源环境引用本文复制引用
李朋,丁立萍,李睿,卢林,康玺,周卫青,吴华成..湿法脱硫工艺对电厂烟气颗粒物排放的影响研究[J].中国电力,2017,50(9):105-110,184,7.基金项目
国家电网公司科技资助项目(特高压跨区域输电对受端区域灰霾天气改善的影响研究) （特高压跨区域输电对受端区域灰霾天气改善的影响研究）
