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Catalytic upgrading of coal pyrolysis tar over char-based catalysts
Alternative TitleFuel Process. Technol.
Han, Jiangze1,2; Wang, Xingdong1; Yue, Junrong1; Gao, Shiqiu1; Xu, Guangwen1
2014-06-01
Source PublicationFUEL PROCESSING TECHNOLOGY
ISSN0378-3820
Volume122Issue:1Pages:98-106
AbstractCatalytic upgrading of coal pyrolysis tar was investigated in a dual-stage reactor over char and metal-impregnated char (Co-char, Ni-char, Cu-char, Zn-char). The catalytic upgrading caused the lower total tar yield and the higher non-condensable gas yield but the fraction of light tar (boiling point <360 degrees C) obviously increased to allow slightly higher total yield of light tar. When the catalytic upgrading was at 600 degrees C over a layer of char having a mass of 20% of the tested coal, the resulting light tar fraction in the tar increased by 25% in comparison with the coal pyrolysis only at 600 degrees C Over the metal-impregnated char, which was 5% of the tested coal in mass, good upgrading effect was obtained at 500 degrees C. The catalytic tar-upgrading activity decreased in an order of Co-char > Ni-char > Cu-char > Zn-char, and over Ni-char the realized light tar yield and its content in the tar increased by 17.2% and 32.7%, respectively. The upgrading effect also lowered the contents of element N and S in the resulting tar by 45.6% and 43.5%, respectively. NH3-TPD clarified that the order in acidity of the char-based catalysts was the same as for the upgrading activity shown above. (C) 2014 Elsevier B.V. All rights reserved.; Catalytic upgrading of coal pyrolysis tar was investigated in a dual-stage reactor over char and metal-impregnated char (Co-char, Ni-char, Cu-char, Zn-char). The catalytic upgrading caused the lower total tar yield and the higher non-condensable gas yield but the fraction of light tar (boiling point <360 degrees C) obviously increased to allow slightly higher total yield of light tar. When the catalytic upgrading was at 600 degrees C over a layer of char having a mass of 20% of the tested coal, the resulting light tar fraction in the tar increased by 25% in comparison with the coal pyrolysis only at 600 degrees C Over the metal-impregnated char, which was 5% of the tested coal in mass, good upgrading effect was obtained at 500 degrees C. The catalytic tar-upgrading activity decreased in an order of Co-char > Ni-char > Cu-char > Zn-char, and over Ni-char the realized light tar yield and its content in the tar increased by 17.2% and 32.7%, respectively. The upgrading effect also lowered the contents of element N and S in the resulting tar by 45.6% and 43.5%, respectively. NH3-TPD clarified that the order in acidity of the char-based catalysts was the same as for the upgrading activity shown above. (C) 2014 Elsevier B.V. All rights reserved.
KeywordCoal Pyrolysis Catalytic Upgrading Tar Quality Char-based Catalyst
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.fuproc.2014.01.033
URL查看原文
Indexed BySCI
Language英语
WOS KeywordBIOMASS GASIFICATION GAS ; VICTORIAN BROWN-COAL ; AROMATIC-HYDROCARBONS ; VOLATILE MATTER ; NI CATALYSTS ; ZIRCONIA ; LIGNITE ; VOLATILIZATION ; HYDROCRACKING ; REDUCTION
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS SubjectChemistry, Applied ; Energy & Fuels ; Engineering, Chemical
WOS IDWOS:000333999700012
Citation statistics
Cited Times:105[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10909
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Han, Jiangze,Wang, Xingdong,Yue, Junrong,et al. Catalytic upgrading of coal pyrolysis tar over char-based catalysts[J]. FUEL PROCESSING TECHNOLOGY,2014,122(1):98-106.
APA Han, Jiangze,Wang, Xingdong,Yue, Junrong,Gao, Shiqiu,&Xu, Guangwen.(2014).Catalytic upgrading of coal pyrolysis tar over char-based catalysts.FUEL PROCESSING TECHNOLOGY,122(1),98-106.
MLA Han, Jiangze,et al."Catalytic upgrading of coal pyrolysis tar over char-based catalysts".FUEL PROCESSING TECHNOLOGY 122.1(2014):98-106.
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