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Improved Catalytic Lifetime of H2SO4 for Isobutane Alkylation with Trace Amount of Ionic Liquids Buffer
Alternative TitleInd. Eng. Chem. Res.
Huang, Qian1,2; Zhao, Guoying1; Zhang, Suojiang1; Yang, Feifei1
2015-02-11
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume54Issue:5Pages:1464-1469
Abstract

Trace amounts of ionic liquids have been mixed in sulfuric acid to enhance the catalytic performance for the alkylation of isobutane with butene. The experimental results from batch reactors indicated that the reaction efficiency was significantly improved. The effective catalytic lifetime of concentrated H2SO4 mixed with [Bmim][SbF6] was twice compared with pure H2SO4. Under the optimal conditions, the alkylate research octane (RON) reached 98, and the selectivity of C8 was 90%. The ionic liquids with SbF6 anion worked similar to buffer agents, which were in favor of keeping the acid strength of catalytic system, slowing the growth of acid soluble oil, and reducing acid consumption. In conclusion, the new catalytic system of acid and trace amounts of ionic liquids is very promising to substitute the old catalytic system of concentrated H2SO4 alone for the alkylation.

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Trace amounts of ionic liquids have been mixed in sulfuric acid to enhance the catalytic performance for the alkylation of isobutane with butene. The experimental results from batch reactors indicated that the reaction efficiency was significantly improved. The effective catalytic lifetime of concentrated H2SO4 mixed with [Bmim][SbF6] was twice compared with pure H2SO4. Under the optimal conditions, the alkylate research octane (RON) reached 98, and the selectivity of C8 was 90%. The ionic liquids with SbF6 anion worked similar to buffer agents, which were in favor of keeping the acid strength of catalytic system, slowing the growth of acid soluble oil, and reducing acid consumption. In conclusion, the new catalytic system of acid and trace amounts of ionic liquids is very promising to substitute the old catalytic system of concentrated H2SO4 alone for the alkylation.

KeywordAcid Catalysts Sulfuric-acid Soluble Oil C-13 Nmr Olefins
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie504163h
URL查看原文
Indexed BySCI
Language英语
WOS KeywordACID CATALYSTS ; SULFURIC-ACID ; SOLUBLE OIL ; C-13 NMR ; OLEFINS
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000349580300008
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11753
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc,State Key, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Huang, Qian,Zhao, Guoying,Zhang, Suojiang,et al. Improved Catalytic Lifetime of H2SO4 for Isobutane Alkylation with Trace Amount of Ionic Liquids Buffer[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2015,54(5):1464-1469.
APA Huang, Qian,Zhao, Guoying,Zhang, Suojiang,&Yang, Feifei.(2015).Improved Catalytic Lifetime of H2SO4 for Isobutane Alkylation with Trace Amount of Ionic Liquids Buffer.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,54(5),1464-1469.
MLA Huang, Qian,et al."Improved Catalytic Lifetime of H2SO4 for Isobutane Alkylation with Trace Amount of Ionic Liquids Buffer".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 54.5(2015):1464-1469.
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