Chemical forms of the fluorine, chlorine, oxygen and carbon in coal fly ash and their correlations with mercury retention

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	Chemical forms of the fluorine, chlorine, oxygen and carbon in coal fly ash and their correlations with mercury retention
	Deng, Shuang 1,2; Shu, Yun 2; Li, Songgeng 3; Tian, Gang 2; Huang, Jiayu 2; Zhang, Fan 2
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2016-01-15
卷号	301 期号:JAN 页码:400-406
关键词	Coal fly ash Surface functionality Chlorine Fluorine Mercury retention
ISSN号	0304-3894
英文摘要	Fly ashes recovered from the particulate control devices at six pulverized coal boiler unites of China, are studied using an X-ray photoelectron spectroscopy (XPS) with a particular focus on the functionalities of fluorine (F), chlorine (Cl), carbon and oxygen on fly ash. It is found that the inorganic forms of F and Cl are predominant on the ash surface in comparison with their organics, and the proportion of organic Cl is relatively higher than that of organic F. Similar results are also obtained in the bulk by correlating the F and Cl contents with those of the unburnt carbon and other compositions in ash. Strong correlations of mercury retention with surface carbon-oxygen functional groups indicate that the C=O, OH/C-O and (O-C=O)-O on surface are of significant importance for mercury retention in fly ash. Their surface concentrations are related to coal type. The presence of Cl in fly ash helps with mercury retention. No obvious effect of F is observed. (C) 2015 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Technology ; Life Sciences & Biomedicine
类目[WOS]	Engineering, Environmental ; Engineering, Civil ; Environmental Sciences
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology
关键词[WOS]	FIRED POWER-PLANTS ; RAY PHOTOELECTRON-SPECTROSCOPY ; ELECTROSTATIC PRECIPITATORS ; EMISSION ; ELEMENTS ; CHINA ; COMBUSTION ; ADSORPTION ; SPECIATION ; SORBENTS
收录类别	SCI
语种	英语
WOS记录号	WOS:000367407200043
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/20250]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	1.State Key Lab Environm Criteria & Risk Assessment, Beijing, Peoples R China 2.Res Acad Environm Sci, Beijing 100012, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Deng, Shuang,Shu, Yun,Li, Songgeng,et al. Chemical forms of the fluorine, chlorine, oxygen and carbon in coal fly ash and their correlations with mercury retention[J]. JOURNAL OF HAZARDOUS MATERIALS,2016,301(JAN):400-406.
APA	Deng, Shuang,Shu, Yun,Li, Songgeng,Tian, Gang,Huang, Jiayu,&Zhang, Fan.(2016).Chemical forms of the fluorine, chlorine, oxygen and carbon in coal fly ash and their correlations with mercury retention.JOURNAL OF HAZARDOUS MATERIALS,301(JAN),400-406.
MLA	Deng, Shuang,et al."Chemical forms of the fluorine, chlorine, oxygen and carbon in coal fly ash and their correlations with mercury retention".JOURNAL OF HAZARDOUS MATERIALS 301.JAN(2016):400-406.