CAS OpenIR  > 多相复杂系统国家重点实验室
Secondary Cracking and Upgrading of Shale Oil from Pyrolyzing Oil Shale over Shale Ash
Lai, Dengguo1,2; Chen, Zhaohui1,2; Lin, Lanxin1,2; Zhang, Yuming3; Gao, Shiqiu1; Xu, Guangwen1
2015-04-01
Source PublicationENERGY & FUELS
ISSN0887-0624
Volume29Issue:4Pages:2219-2226
AbstractConsidering oil shale pyrolysis with a solid heat carrier, this article investigated the effect of shale ash, as the bed material for secondary reactions of pyrolysis volatile, on final product distribution and quality of oil shale pyrolysis in a laboratory dual-stage fixed bed reactor. The examined factors included the residence time of pyrolysis volatile in a shale ash bed and the temperature of shale ash (i.e., cracking temperature). Prolonging the pyrolysis volatile residence time in the shale ash bed from 0 to 10 s decreased the shale oil yield by 31.0% but increased the fraction of gasoline and diesel (boiling point <623 K) by 46.4%. A part of heavy oil (boiling point >773 K) was cracked to increase the yields of light oil and pyrolysis gas (especially H-2 and CH4). The shale ash bed temperature was the key factor affecting the product distribution. The catalytic effect of shale ash lowered the shale oil cracking temperature for achieving the same degree of oil cracking. The catalytic activity of shale ash for cracking shale oil was shown to be closely dependent on the metal oxides in the ash. While CaO and Na2O tended to inhibit the formation of coke and to promote catalytic reforming, Fe2O3 showed good activity in cracking shale oil and forming coke.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ef502821c
Indexed BySCI
Language英语
WOS KeywordCOAL PYROLYSIS TAR ; PRODUCTS ; REACTOR ; CHAR ; CATALYSTS ; INHERENT ; KINETICS
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000353251800018
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/16748
Collection多相复杂系统国家重点实验室
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
3.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
Recommended Citation
GB/T 7714
Lai, Dengguo,Chen, Zhaohui,Lin, Lanxin,et al. Secondary Cracking and Upgrading of Shale Oil from Pyrolyzing Oil Shale over Shale Ash[J]. ENERGY & FUELS,2015,29(4):2219-2226.
APA Lai, Dengguo,Chen, Zhaohui,Lin, Lanxin,Zhang, Yuming,Gao, Shiqiu,&Xu, Guangwen.(2015).Secondary Cracking and Upgrading of Shale Oil from Pyrolyzing Oil Shale over Shale Ash.ENERGY & FUELS,29(4),2219-2226.
MLA Lai, Dengguo,et al."Secondary Cracking and Upgrading of Shale Oil from Pyrolyzing Oil Shale over Shale Ash".ENERGY & FUELS 29.4(2015):2219-2226.
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