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Fundamentals of coal topping gasification: Characterization of pyrolysis topping in a fluidized bed reactor
Alternative TitleFuel Process. Technol.
Xiong, Ran1; Dong, Li1; Yu, Jian1; Zhang, Xiaofang1,2; Jin, Ling1; Xu, Guangwen1
2010-08-01
Source PublicationFUEL PROCESSING TECHNOLOGY
ISSN0378-3820
Volume91Issue:8Pages:810-817
AbstractCoal topping gasification refers to a process that extracts the volatiles contained in coal into gas and tar rich in chemical structures in advance of gasification. The technology can be implemented in a reactor system coupling a fluidized bed pyrolyzer and a transport bed gasifier in which coal is first pyrolyzed in the fluidized bed before being forwarded into the transport bed for gasification. The present article is devoted to investigating the pyrolysis of lignite and bituminite in a fluidized bed reactor. The results showed that the highest tar yield appeared at 823 to 923 K for both coals. When coal ash from CFB boiler was used as the bed material, obvious decreases in the yields of tar and pyrolysis gas were observed. Pyrolysis in a reaction atmosphere simulating the pyrolysis gas composition of coal resulted in a higher production of tar. Under the conditions of using CFB boiler ash as the bed material and the simulated pyrolysis gas as the reaction atmosphere, the tar yields for pyrolytic topping in a fluidized bed reactor was about 11.4 wt.% for bituminite and 6.5 wt.% for lignite in dry ash-free coal base. (C) 2009 Elsevier B.V. All rights reserved.; Coal topping gasification refers to a process that extracts the volatiles contained in coal into gas and tar rich in chemical structures in advance of gasification. The technology can be implemented in a reactor system coupling a fluidized bed pyrolyzer and a transport bed gasifier in which coal is first pyrolyzed in the fluidized bed before being forwarded into the transport bed for gasification. The present article is devoted to investigating the pyrolysis of lignite and bituminite in a fluidized bed reactor. The results showed that the highest tar yield appeared at 823 to 923 K for both coals. When coal ash from CFB boiler was used as the bed material, obvious decreases in the yields of tar and pyrolysis gas were observed. Pyrolysis in a reaction atmosphere simulating the pyrolysis gas composition of coal resulted in a higher production of tar. Under the conditions of using CFB boiler ash as the bed material and the simulated pyrolysis gas as the reaction atmosphere, the tar yields for pyrolytic topping in a fluidized bed reactor was about 11.4 wt.% for bituminite and 6.5 wt.% for lignite in dry ash-free coal base. (C) 2009 Elsevier B.V. All rights reserved.
KeywordTopping Gasification Pyrolysis Fluidized Bed Coal Ash Lignite Cfb Boiler
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.fuproc.2009.07.005
URL查看原文
Indexed BySCI
Language英语
WOS KeywordCHEMICAL-LOOPING COMBUSTION ; FLASH PYROLYSIS ; OXYGEN CARRIER ; HEATING RATES ; BROWN-COAL ; PRESSURE ; HYDROPYROLYSIS ; METHANE
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS SubjectChemistry, Applied ; Energy & Fuels ; Engineering, Chemical
WOS IDWOS:000279857400004
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6350
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
2.Beijing Aerosp WanYuan Coal Chem Engn Technol Co, Beijing 100176, Peoples R China
Recommended Citation
GB/T 7714
Xiong, Ran,Dong, Li,Yu, Jian,et al. Fundamentals of coal topping gasification: Characterization of pyrolysis topping in a fluidized bed reactor[J]. FUEL PROCESSING TECHNOLOGY,2010,91(8):810-817.
APA Xiong, Ran,Dong, Li,Yu, Jian,Zhang, Xiaofang,Jin, Ling,&Xu, Guangwen.(2010).Fundamentals of coal topping gasification: Characterization of pyrolysis topping in a fluidized bed reactor.FUEL PROCESSING TECHNOLOGY,91(8),810-817.
MLA Xiong, Ran,et al."Fundamentals of coal topping gasification: Characterization of pyrolysis topping in a fluidized bed reactor".FUEL PROCESSING TECHNOLOGY 91.8(2010):810-817.
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