随着我国环保标准日益严格,很多燃煤电厂静电除尘器已不能满足排放标准的要求,需进行改造。该文首先分析了造成静电除尘器除尘效率低下的主要原因;提出3种改造方案:增加电场;改造为袋式除尘器;改造为静电袋式复合除尘器。并从技术性能...随着我国环保标准日益严格,很多燃煤电厂静电除尘器已不能满足排放标准的要求,需进行改造。该文首先分析了造成静电除尘器除尘效率低下的主要原因;提出3种改造方案:增加电场;改造为袋式除尘器;改造为静电袋式复合除尘器。并从技术性能和经济性2个方面对3种改造方案进行了比较,以郑州热电厂200 M W机组静电除尘器改造为例对3种方案进行了对比分析,结果表明:改造为静电袋式复合除尘器的方案是静电除尘器改造的最佳方案,并认为静电袋式复合除尘是我国除尘技术未来的发展方向之一。展开更多
Entrained flow adsorption using activated carbon as the adsorbent is widely adopted for PCDDs/Fs-abatement in municipal solid waste incineration (MSWI) process. The effects of operating parameters including flue gas t...Entrained flow adsorption using activated carbon as the adsorbent is widely adopted for PCDDs/Fs-abatement in municipal solid waste incineration (MSWI) process. The effects of operating parameters including flue gas temperature, feeding rate of activated carbon, polychlorinated dibenzodioxins and polychlorinated dibenzofurans (PCDDs/Fs) concentration at the inlet of the air pollution control device (APCD), filter materials, pressure drop on PCDDs/Fs removal efficiency are reviewed and commented upon in this paper. Evaluation on the various mechanistic models for entrained flow adsorption is carried out based on the computational simulation in terms of the actual operating condition and theoretical analysis. Finally, an advancement of en- trained flow adsorption in combination of dual bag filter is introduced.展开更多
文摘随着我国环保标准日益严格,很多燃煤电厂静电除尘器已不能满足排放标准的要求,需进行改造。该文首先分析了造成静电除尘器除尘效率低下的主要原因;提出3种改造方案:增加电场;改造为袋式除尘器;改造为静电袋式复合除尘器。并从技术性能和经济性2个方面对3种改造方案进行了比较,以郑州热电厂200 M W机组静电除尘器改造为例对3种方案进行了对比分析,结果表明:改造为静电袋式复合除尘器的方案是静电除尘器改造的最佳方案,并认为静电袋式复合除尘是我国除尘技术未来的发展方向之一。
基金Project supported by the National Basic Research Program (973) of China (No. G1999022211) and the National Natural Science Founda-tion of China (No. N59836210)
文摘Entrained flow adsorption using activated carbon as the adsorbent is widely adopted for PCDDs/Fs-abatement in municipal solid waste incineration (MSWI) process. The effects of operating parameters including flue gas temperature, feeding rate of activated carbon, polychlorinated dibenzodioxins and polychlorinated dibenzofurans (PCDDs/Fs) concentration at the inlet of the air pollution control device (APCD), filter materials, pressure drop on PCDDs/Fs removal efficiency are reviewed and commented upon in this paper. Evaluation on the various mechanistic models for entrained flow adsorption is carried out based on the computational simulation in terms of the actual operating condition and theoretical analysis. Finally, an advancement of en- trained flow adsorption in combination of dual bag filter is introduced.
基金supported by the National Key Research and Development Program of China(No.2016YFC0203706)the National Natural Science Foundation of China(No.U1609212)the Environmental Welfare Project of Ministry of Environmental Projection of China(No.201509012)
