燃煤工业锅炉烟气中汞排放情景分析  

Scenario analysis of mercury emission from coal-fired industrial boiler flue gas

作　　者：齐书芳[1] 岳涛[1] 王凡[2] 韩斌杰[1] 丁永华[1] 左朋莱[1] 张凡[2] 庄德安[1] 

机构地区：[1]北京市劳动保护科学研究所,北京100054 [2]中国环境科学研究院,北京100012

出　　处：《环境污染与防治》2014年第7期103-106,共4页Environmental Pollution & Control

基　　金：环境保护部环保公益性行业科研专项"工业锅炉;窑炉重金属污染物排放标准限值及控制策略研究"(No.201009048)

摘　　要：目前，中国对于燃煤工业锅炉烟气中汞排放的控制，主要利用除尘、脱硫等技术进行协同减排控制。以2015年为燃煤工业锅炉烟气中汞排放标准的实施年，按设定的两种情景分析了不同的协同脱汞技术方案，并分析了两种情景（情景一；新建锅炉和在役锅炉汞的排放限值分别为30、50μg／m3；情景二：新建锅炉和在役锅炉的汞排放限值分别为20、30μg／m3）下燃煤工业锅炉烟气中汞的减排情况。分析表明：情景一下，与2015年相比，2020年燃煤工业锅炉烟气中汞减排量增加15．5～29．0t，汞减排率则增加了8～14百分点；情景二下，与2015年相比，2020年汞减排量增加19．7～36．5t，汞减排率则增加10～18百分点。情景二下，高脱汞效率的协同脱汞控制技术的使用比例更高，因此汞减排效果更强。At present, the mercury emissions control from coal-fired industrial boiler flue gas in China was main- ly achieved through collaborative emission reduction by using dust removal technology,desulfurization technology and other air pollutants control technologies. The coal-fired industrial boiler mercury emission standard was supposed to be implemented in 2015, the constitute requirements of collaborative mercury removal technology under two scenarios （scenario one：the mercury emission standards for new boilers and in-service boilers are 30,50 μg/m3 ;scenario two： the mercury emission standards for new boilers and in-service boilers are 20,30 μg/m3） were analyzed, and corre- sponding mercury emission reductions were calculated. The results show that： for scenario one, compared to 2015, mer- cury emission from coal-fired industrial boiler flue gas in 2020 decreased by 15.5-29.0 t,and mercury emission reduc- tion rate increased by 8-14 percent point. For two scenario, compared to 2015, mercury emission from coal-fired indus- trial boiler flue gas in 2020 decreased by 19.7-36.5 t,and mercury emission reduction rate increased by 10-18 percent point. The collaborative mercury control technology with higher mercury removal efficiency was used under scenario two, so that it could achieved better mercury reduction efficiency.

关 键 词：工业锅炉 汞污染 协同减排 情景分析 

分 类 号：X701[环境科学与工程—环境工程]