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Bifunctional catalyst for petroleum residue cracking gasification
Alternative TitleFuel
Zhang, Yuming1,2; Yu, Deping1,3; Li, Wangliang1; Gao, Shiqiu1; Xu, Guangwen1
2014
Source PublicationFUEL
ISSN0016-2361
Volume117Issue:1Pages:1196-1203
AbstractThe so-called petroleum residue cracking gasification (RCG) process intends to convert the heavy oil first into cracked liquid by catalytic cracking and then into syngas via catalytic gasification of the cracking-formed coke. A bifunctional catalyst (BFC) was synthesized in this article and tested for the petroleum residue cracking gasification in a laboratory-scale fluidized bed reactor through comparison with the performance over an FCC catalyst. Low liquid yield of vacuum residue (VR) cracking was obtained with fresh BFC and FCC catalysts because of their strong acidity and thus activity. Hydrothermal treatment was thus performed to weaken the acidity of both the catalysts. This resulted in liquid yields of about 80 wt.% at 500 degrees C for cracking the same VR. The spent BFC and FCC catalysts were both in situ regenerated via steam gasification of the formed coke in the same fluidized bed reactor. This generated simultaneously syngas which contained CO and H-2 of up to 80 vol.%, and the realized carbon conversion was over 95% at 800 degrees C for both the catalysts. However, the regeneration time for BFC was greatly shorter than that for the FCC catalyst. This shows the much better activity of BFC for coke gasification in comparison with FCC that has almost no activity for catalyzing coke gasification. In fact, the BFC contained much more active alkaline metal sites than the FCC to ensure its catalytic activity for gasification. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.; The so-called petroleum residue cracking gasification (RCG) process intends to convert the heavy oil first into cracked liquid by catalytic cracking and then into syngas via catalytic gasification of the cracking-formed coke. A bifunctional catalyst (BFC) was synthesized in this article and tested for the petroleum residue cracking gasification in a laboratory-scale fluidized bed reactor through comparison with the performance over an FCC catalyst. Low liquid yield of vacuum residue (VR) cracking was obtained with fresh BFC and FCC catalysts because of their strong acidity and thus activity. Hydrothermal treatment was thus performed to weaken the acidity of both the catalysts. This resulted in liquid yields of about 80 wt.% at 500 degrees C for cracking the same VR. The spent BFC and FCC catalysts were both in situ regenerated via steam gasification of the formed coke in the same fluidized bed reactor. This generated simultaneously syngas which contained CO and H-2 of up to 80 vol.%, and the realized carbon conversion was over 95% at 800 degrees C for both the catalysts. However, the regeneration time for BFC was greatly shorter than that for the FCC catalyst. This shows the much better activity of BFC for coke gasification in comparison with FCC that has almost no activity for catalyzing coke gasification. In fact, the BFC contained much more active alkaline metal sites than the FCC to ensure its catalytic activity for gasification. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.
KeywordPetroleum Residue Bifunctional Catalyst Cracking Coke Gasification Fluid Coking
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.fuel.2013.07.048
URL查看原文
Indexed BySCI
Language英语
WOS KeywordHYDROPROCESSING CATALYSTS ; VACUUM RESIDUE ; DELAYED COKING ; GAS OIL ; FCC ; VISBREAKING ; DEPOSITION ; FRACTIONS ; PYROLYSIS ; ZEOLITES
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000327767400039
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8036
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.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Xiangtan Univ, Dept Chem Engn, Xiangtan 411105, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yuming,Yu, Deping,Li, Wangliang,et al. Bifunctional catalyst for petroleum residue cracking gasification[J]. FUEL,2014,117(1):1196-1203.
APA Zhang, Yuming,Yu, Deping,Li, Wangliang,Gao, Shiqiu,&Xu, Guangwen.(2014).Bifunctional catalyst for petroleum residue cracking gasification.FUEL,117(1),1196-1203.
MLA Zhang, Yuming,et al."Bifunctional catalyst for petroleum residue cracking gasification".FUEL 117.1(2014):1196-1203.
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