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燃煤电厂细颗粒物控制技术集成应用及“近零排放”特性

王树民 张翼 刘吉臻

王树民, 张翼, 刘吉臻. 燃煤电厂细颗粒物控制技术集成应用及“近零排放”特性[J]. 环境科学研究, 2016, 29(9): 1256-1263.
引用本文: 王树民, 张翼, 刘吉臻. 燃煤电厂细颗粒物控制技术集成应用及“近零排放”特性[J]. 环境科学研究, 2016, 29(9): 1256-1263.
WANG Shumin, ZHANG Yi, LIU Jizhen. Integrated Application of Fine Particulate Matter Control Technologies and Their “Near-Zero Emission” Characteristics in Coal-Fired Power Plants[J]. Research of Environmental Sciences, 2016, 29(9): 1256-1263.
Citation: WANG Shumin, ZHANG Yi, LIU Jizhen. Integrated Application of Fine Particulate Matter Control Technologies and Their “Near-Zero Emission” Characteristics in Coal-Fired Power Plants[J]. Research of Environmental Sciences, 2016, 29(9): 1256-1263.

燃煤电厂细颗粒物控制技术集成应用及“近零排放”特性

基金项目: 国家科技支撑计划项目(2015BAA05B02)

Integrated Application of Fine Particulate Matter Control Technologies and Their “Near-Zero Emission” Characteristics in Coal-Fired Power Plants

  • 摘要: 细颗粒物是燃煤电厂污染物控制的难点.三河电厂通过技术集成进行“近零排放”技术攻关,包括采用低低温静电除尘器以提高细颗粒物的除尘效率、利用脱硫除尘一体化技术提高脱硫系统的协同除尘性能、通过湿式静电除尘器实现细颗粒物的深度控制.结果表明:三河电厂通过技术攻关和集成应用后,4台燃煤机组先后实现ρ(烟尘)、ρ(SO2)和 ρ(NOx)分别低于GB 13223—2011《火电厂大气污染物排放标准》中天然气燃气轮机组各自排放限值(5、35和50 mg/m3).其中,1~3号机组排放ρ(烟尘)分别为5、3、2 mg/m3,截至2016年3月15日,4号机组ρ(烟尘)连续265 d在1 mg/m3以下.采用低低温静电除尘技术后,4号机组除尘效率由99.86%升至99.89%,同时可凝结颗粒物前驱物SO3的脱除效率从25.88%升至46.12%;3号机组采用脱硫除尘一体化技术后,100%负荷下协同除尘效率从34.29%升至87.66%以上,全负荷运行下吸收塔出口ρ(烟尘)稳定在3 mg/m3左右;1号、2号、4号机组在100%负荷下湿式静电除尘器除尘效率分别为77.87%、88.82%、83.60%,2号湿式静电除尘器对PM2.5、PM10和SO3的脱除效率分别为98.37%、97.31%和42.23%.

     

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  • 收稿日期:  2016-04-25
  • 修回日期:  2016-06-23
  • 刊出日期:  2016-09-25

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