燃煤机组可凝结颗粒物排放特性及控制技术研究  

Research on emission characteristics and control technology of condensable particulate matter from coal-fired units

作　　者：赵柄 ZHAO Bing

机构地区：[1]中国大唐集团科学技术研究院有限公司火力发电技术研究院,北京100040

出　　处：《节能》2021年第11期50-53,共4页Energy Conservation

摘　　要：化石燃料燃烧是大气颗粒物(TPM)排放的主要来源。颗粒物分为可过滤颗粒物(FPM)和可凝结颗粒物(CPM),目前我国对燃煤机组FPM的排放控制较好。由于CPM性质特殊且难以测量,导致燃煤机组的实际颗粒物排放量被低估。使用改良后的冲击冷凝法对国内某W型火焰炉机组进行CPM排放特性进行测试。研究表明:机组CPM排放占TPM的80%~90%,CPM组分中有机组分仅占1%~2%,其他大部分都为无机组分,无机组分中SO42-占比最多,达到CPM的50%以上;Cl-次之,占20%~32%;NH4+占15%~25%。Fossil fuel combustion is the main source of atmospheric total particulate matter(TPM)emissions.Total particulate matter is divided into filterable particulate matter(FPM)and condensable particulate matter(CPM),China has better control of FPM emissions from coal-fired units.The actual particulate emissions can easily be underestimated of coal-fired units,due to the special nature of CPM and difficulted to measure.The improved impulse condensation method was used to test the CPM emission characteristics of a W flame boiler unit,research shows that the CPM emissions account for 80%~90%of the TPM,organic components only account for 1%~2%and most of the others are inorganic components among the CPM components.The SO42-contributed more than 50%to inorganic components while Clcontributed 20%~32%,and NH4+accounting for 15%~25%.

关 键 词：燃煤机组 W型火焰炉 CPM 

分 类 号：X74[环境科学与工程—环境工程]