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Deep Conversion of Venezuela Heavy Oil via Integrated Cracking and Coke Gasification-Combustion Process
Zhang, Yuming1,2; Huang, Lei1; Xi, Xiaoying2; Li, Wangliang2; Sun, Guogang1; Gao, Shiqiu2; Zhang, Shu3
2017-09-01
Source PublicationENERGY & FUELS
ISSN0887-0624
Volume31Issue:9Pages:9915-9922
Abstract

The integrated residue cracking and coke gasification combustion (RCGC) process was proposed to make hierarchical and value-added utilization of Venezuela vacuum residue. Heavy oil cracking was conducted in a fluidized bed reactor with spent fluid catalytic cracking (FCC) catalysts, finding that both high liquid yield (>76 wt %) and conversion ratio (>90%) could be realized over the hydrothermal treated FCC (A-FCC) catalyst at 524 degrees C. As characterized by temperature-programmed ammonia desorption analysis, the A-FCC catalyst with moderate cracking ability was essential for optimum product distribution in vacuum residue conversion, where coke formation could be greatly suppressed via efficient oil vaporization and minimized secondary reaction. Coke removal (i.e., catalyst regeneration) of the FCC catalysts was conducted in two ways, that is, coke gasification (G-FCC) and gasification combustion (GC-FCC). During coke gasification, the sum of H-2 and CO took up more than 80 vol % in the syngas, which could be potentially used as a hydrogen source for hydrotreating the cracked oil. Compared with that of the G-FCC catalyst, the regeneration time of the GC-FCC catalyst not only was shortened by 40% but also had higher carbon conversion ratio and a superior recovery of pore structures. As a result, the GC-FCC catalyst showed cracking performance for vacuum residue that was better than that of the G-FCC catalyst because of its higher recovered acidity for heavy oil conversion. The FCC catalyst exhibited good hydrothermal stability during the cycle tests and thus could be potentially used as a candidate for Venezuela heavy oil upgrading via the RCGC process.

SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/acs.energyfuels.7b01606
Indexed BySCI
Language英语
WOS KeywordRISER CATALYTIC CRACKING ; MICRO FLUIDIZED-BED ; STEAM GASIFICATION ; DELAYED COKING ; PETROLEUM ; RESIDUE ; FCC ; PYROLYSIS ; REACTORS ; GAS
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation(21406264) ; National Basic Research Program of China(2014CB744304) ; Science Foundation of China University of Petroleum, Beijing(2462013YJRC021 ; C201606)
WOS IDWOS:000411771200113
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23245
Collection多相复杂系统国家重点实验室
Affiliation1.China Univ Petr, Beijing Key Lab Proc Fluid Filtrat & Separat, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Curtin Univ Technol, Fuels & Energy Technol Inst, GPO Box U1987, Perth, WA 6845, Australia
Recommended Citation
GB/T 7714
Zhang, Yuming,Huang, Lei,Xi, Xiaoying,et al. Deep Conversion of Venezuela Heavy Oil via Integrated Cracking and Coke Gasification-Combustion Process[J]. ENERGY & FUELS,2017,31(9):9915-9922.
APA Zhang, Yuming.,Huang, Lei.,Xi, Xiaoying.,Li, Wangliang.,Sun, Guogang.,...&Zhang, Shu.(2017).Deep Conversion of Venezuela Heavy Oil via Integrated Cracking and Coke Gasification-Combustion Process.ENERGY & FUELS,31(9),9915-9922.
MLA Zhang, Yuming,et al."Deep Conversion of Venezuela Heavy Oil via Integrated Cracking and Coke Gasification-Combustion Process".ENERGY & FUELS 31.9(2017):9915-9922.
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