电除尘器对多环芳烃排放的影响  

INFLUENCE OF ELECTRIC PRECIPITATOR UPON PAHs EMISSIONS

作　　者：严建华[1] 曹志勇[1] 祁明峰[1] 李晓东[1] 尤孝方[1] 倪明江[1] 岑可法[1] 

机构地区：[1]浙江大学,浙江杭州310027

出　　处：《热力发电》2004年第4期14-16,19,共4页Thermal Power Generation

基　　金：国家重点自然科学基金 (N598362 1 0 );国家重点基础研究规划项目 (G1 9990 2 2 2 1 1 );国家自然科学基金 (N1 9862 598780 4 7)。

摘　　要：在某 30 0MW机组燃煤锅炉电除尘器上对PAHs排放进行了试验研究 ,分析比较了不同煤种燃烧后电除尘器前后PAHs的浓度变化。为了定量评价不同PAHs排放对环境的危害 ,引入了毒性当量的概念。试验结果表明 ,电除尘器对PAHs脱除效果并不理想 ,且受工况影响较大。Test and study on polycyclic aromatic hydrocarbons (PAHs) emissions have been carried out on electric precipitators (EP) in a 300MW coalfired power plant, the variation of PAHs concentration before and after the EP under combustion conditions of different coal sorts being analysed and compared. In order to quantitatively evaluate influence of different PAHs emissions upon the harmfulness to environment, the concept of toxicity equivalence has been introduced into this paper. The test results show that the affect of EP on PAHs removal is not very good, and being greatly influenced by operation conditions of the EP.

关 键 词：燃煤锅炉 电除尘器 多环芳烃排放 粉尘 脱除效率 环境保护 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程] X77[环境科学与工程—环境工程]