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	燃煤排放可吸入颗粒物的显微结构与物质组成研究
	孙俊民 ; 温茂 ; 刘惠永 ; 姚强 ; 徐旭常 ; SUN Jun-min ; WEN Mao ; LIU Hui-yong ; YAO Qiang ; XU Xu-chang
	2010-06-08 ; 2010-06-08
关键词	煤粉燃烧 可吸入颗粒物(PM_(10)) 显微结构 矿物组成 化学成分 pulverized coal combustion inhalable particulate matters (PM_(10)) microstructure mineral composition chemical composition X513
其他题名	Microstructure and composition of inhalable particulate matter (PM_(10)) from coal-fired power plants in Southwest China
中文摘要	对我国西南地区三个火电厂排放的可吸入颗粒物(PM_(10))的显微结构、矿物和化学组成等的研究表明,在PM_(10)中,随着粒径的减小,非球形颗粒的比例增加;同原状飞灰相比,PM_(10)以实心结构为主,多孔和空心结构较少;场发射扫描电子显微镜下,多数PM10颗粒的表面并不光滑,而是布满了次级微细颗粒;PM_(10)的物相组成与燃煤煤种密切相关,小龙潭电厂PM_(10)主要矿物包括石英、石灰、石膏和赤铁矿,而贵阳电厂PM_(10)则以莫来石和石英为主;据单个PM_(10)颗粒化学组成,将PM_(10)分为硅质、铁质、Ca-铝硅质、Fe-铝硅质、Ca-Fe-铝硅质和硫酸钙六种颗粒类型;从不同采样点PM_(10)元素组成看,从静电除尘器(ESP)前到ESP,PM_(10)化学成分变化不大,到ESP后,元素Fe、Ca、Mg和Al的含量急剧减少,而Na的含量则迅速增高。; The microstructure, mineral phase and chemical composition of inhalable particulate matter (PM_(10)) from three coal-fired power plants in Southwest China were studied by two types of scanning electron microscope (SEM), electron probe, X-ray diffraction (XRD) and inductively coupled plasma mass spectrometer (ICP-MS). The results indicate that the number of non-spherical particle increases with decreasing grain size of PM_(10). There are more solid spheres and less porous and hollow spheres in PM_(10) compared with original fly ash particles. The surface of PM_(10) is normally coated with a layer of ultra-fine particles. The main minerals of PM_(10) from Xiaolongtan power plant include quartz, lime, gypsum and hematite, but mullite and quartz are the main crystalline phases of PM_(10) from Guiyang power plant. Six types of single particle, namely, silicon, ferruginous, Ca-aluminosilicate, Fe-aluminosilicate, Ca-Fe-aluminosilicate and calcium sulfate were identified according to their chemical composition. From electrostatic precipitator (ESP) inlet to ESP, the main element contents of PM_(10) have little variety, however, the contents of Fe, Ca, Mg and Al decrease significantly and the content of Na increases markedly on ESP outlet.; 国家自然科学基金(40102013); 国家重点基础研究发展计划项目(2002CB211600)
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/50191]
专题	清华大学
推荐引用方式 GB/T 7714	孙俊民,温茂,刘惠永,等. 燃煤排放可吸入颗粒物的显微结构与物质组成研究[J],2010, 2010.
APA	孙俊民.,温茂.,刘惠永.,姚强.,徐旭常.,...&XU Xu-chang.(2010).燃煤排放可吸入颗粒物的显微结构与物质组成研究..
MLA	孙俊民,et al."燃煤排放可吸入颗粒物的显微结构与物质组成研究".(2010).

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