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Chemical forms of the fluorine, chlorine, oxygen and carbon in coal fly ash and their correlations with mercury retention
Deng, Shuang1,2; Shu, Yun2; Li, Songgeng3; Tian, Gang2; Huang, Jiayu2; Zhang, Fan2
2016-01-15
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume301Issue:JANPages:400-406
AbstractFly 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.
KeywordCoal Fly Ash Surface Functionality Chlorine Fluorine Mercury Retention
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1016/j.jhazmat.2015.09.032
Indexed BySCI
Language英语
WOS KeywordFIRED POWER-PLANTS ; RAY PHOTOELECTRON-SPECTROSCOPY ; ELECTROSTATIC PRECIPITATORS ; EMISSION ; ELEMENTS ; CHINA ; COMBUSTION ; ADSORPTION ; SPECIATION ; SORBENTS
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Engineering, Civil ; Environmental Sciences
Funding OrganizationSupporting Program of the "Twelfth Five-year Plan" for Science & Technology Research of China(2013BAC12B02) ; Open foundation of State Key Laboratory of Environmental Criteria and Risk Assessment(SKLECRA20150FP06)
WOS IDWOS:000367407200043
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20250
Collection多相复杂系统国家重点实验室
Affiliation1.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
Recommended Citation
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.
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