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燃煤电厂大气污染物“近零排放”技术研究及工程应用

王树民 宋 畅 陈寅彪 孙 平

王树民, 宋 畅, 陈寅彪, 孙 平. 燃煤电厂大气污染物“近零排放”技术研究及工程应用[J]. 环境科学研究, 2015, 28(4): 487-494.
引用本文: 王树民, 宋 畅, 陈寅彪, 孙 平. 燃煤电厂大气污染物“近零排放”技术研究及工程应用[J]. 环境科学研究, 2015, 28(4): 487-494.
WANG Shumin, SONG Chang, CHEN Yinbiao, SUN Ping. Technology Research and Engineering Applications of Near-Zero Air Pollutant Emission Coal-Fired Power Plants[J]. Research of Environmental Sciences, 2015, 28(4): 487-494.
Citation: WANG Shumin, SONG Chang, CHEN Yinbiao, SUN Ping. Technology Research and Engineering Applications of Near-Zero Air Pollutant Emission Coal-Fired Power Plants[J]. Research of Environmental Sciences, 2015, 28(4): 487-494.

燃煤电厂大气污染物“近零排放”技术研究及工程应用

基金项目: 国家高技术研究发展计划(863)项目(2013AA065404)

Technology Research and Engineering Applications of Near-Zero Air Pollutant Emission Coal-Fired Power Plants

  • 摘要:

    在燃煤电厂实现大气污染物“近零排放”过程中,烟尘控制技术是关键,通过对除尘、脱硫、脱硝等先进环保技术的系统比较,提出了燃煤电厂大气污染物“近零排放”技术路线. 在地处长三角的国华舟山电厂4号机组采用高效低氮燃烧+SCR(选择性催化还原法)脱硝+旋转电极除尘+海水脱硫+湿式静电除尘的技术路线,ρ(烟尘)、ρ(SO2)、ρ(NOx)的实际排放值分别为2.46、2.76、19.80 mg/m3;在地处京津冀的国华三河电厂1号机组,采用高效低氮燃烧+SCR脱硝+低温省煤器+静电除尘(高效电源)+湿法脱硫+湿式静电除尘的技术路线,ρ(烟尘)、ρ(SO2)、ρ(NOx)的实际排放值分别为5、9、35 mg/m3. 实践表明,立足国情走煤炭清洁高效利用之路,燃煤电厂可以在低成本下实现大气污染物的“近零排放”. 通过对技术路线优化、低浓度污染物在线测量技术及“近零排放”中存在的一些问题进行分析和探讨,提出了燃煤电厂大气污染物控制技术的研究和发展方向. 估算结果表明,如果全国燃煤机组自2015年起采用“近零排放”技术,5 a内烟尘、SO2、NOx年均减排率分别可达19.0%、18.9%、18.5%.

     

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  • 刊出日期:  2015-04-25

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