Retention mechanisms of ash compositions on toxic elements (Sb, Se and Pb) during fluidized bed combustion

doi:10.1016/j.fuel.2017.10.111

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Retention mechanisms of ash compositions on toxic elements (Sb, Se and Pb) during fluidized bed combustion
	Sun, Hao 4; Lam, Paul Kwan Sing 2,3; Liu,Guijian ; Zhou, Chuncai 1,4; Liu, Guijian 1,4; Xu, Zhongyu 4
刊名	FUEL
	2018-02-01
卷号	213 期号:2018 页码:98-105
关键词	Toxic Element Ash Composition Redistribution Retention Mechanism Coal Combustion
DOI	10.1016/j.fuel.2017.10.111
文献子类	Article
英文摘要	Both laboratory simulation experiments and thermodynamic equilibrium calculations were conducted to illustrate the retention mechanisms of ash components on three toxic elements (Sb, Se and Pb). The experiment was carried out in a fluidized bed reactor with the combustion temperature in the range of 500-1000 degrees C. The results shown that the redistribution behavior of these toxic elements was greatly proportional to the combustion temperature, ash components and amounts. The adding of Fe, Ca, Mg, Na and K favour the retention of Sb and Se, while the presence of Si was represented against Sb and Se capture. Si, Al, Fe, Na and K have an appreciable effect on the retention of Pb, while the Pb capture by Ca and Mg was limited. The partial retention of these elements in ashes may be attributed to both physisorption and chemisorption. Among them, the formation of non- volatilized compounds may be the primary contribution for the retention of Sb, Se and Pb (except for Al). The negative Sb and Se captured by Si may be ascribed to the interactions between Si and other components which promote the retention of Sb and Se. The highly Pb retention by Si and Al in ashes may be explained by the formation of PbO center dot SiO2, PbO center dot Al2O3 and PbO center dot Al2O3 center dot 2SiO(2). Fe- and Al-based materials may be supposed to the appreciate additives for the capture potential of all the selected elements.
WOS关键词	PULVERIZED COAL COMBUSTION ; SELENIUM-COMPOUNDS PRESENT ; MUNICIPAL SOLID-WASTE ; FIRED POWER-PLANTS ; TRACE-ELEMENTS ; HEAVY-METALS ; CHINESE COALS ; FLY-ASH ; ATMOSPHERIC EMISSION ; THERMAL-TREATMENT
WOS研究方向	Energy & Fuels ; Engineering
项目编号	973 Program ; 2014CB238903 ; 2016YFC0201600 ; 41702166 ; 41672144 ; 1708085QE110 ; BX201700222 ; WK2080000085 ; 2015-K-13
语种	英语
WOS记录号	WOS:000414924700009
资助机构	National Basic Research Program ofChina ; National Basic Research Program ofChina ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; National Postdoctoral Program for InnovativeTalents ; National Postdoctoral Program for InnovativeTalents ; Fundamental Research Funds for theCentral Universities ; Fundamental Research Funds for theCentral Universities ; ScienceProgram of Department of Land and Resources of Anhui Province ; ScienceProgram of Department of Land and Resources of Anhui Province
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5355]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Liu,Guijian
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China 2.City Univ Hong Kong, Dept Biol & Chem, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China 3.City Univ Hong Kong, State Key Lab Marine Pollut, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China 4.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Sun, Hao,Lam, Paul Kwan Sing,Liu,Guijian,et al. Retention mechanisms of ash compositions on toxic elements (Sb, Se and Pb) during fluidized bed combustion[J]. FUEL,2018,213(2018):98-105.
APA	Sun, Hao,Lam, Paul Kwan Sing,Liu,Guijian,Zhou, Chuncai,Liu, Guijian,&Xu, Zhongyu.(2018).Retention mechanisms of ash compositions on toxic elements (Sb, Se and Pb) during fluidized bed combustion.FUEL,213(2018),98-105.
MLA	Sun, Hao,et al."Retention mechanisms of ash compositions on toxic elements (Sb, Se and Pb) during fluidized bed combustion".FUEL 213.2018(2018):98-105.