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Anionic Clusters Enhanced Catalytic Performance of Protic Acid Ionic Liquids for Isobutane Alkylation
Wang, Aoyun1,2; Zhao, Guoying2; Liu, Fangfang3; Ullah, Latif2; Zhang, Suojiang2; Zheng, Anmin4

Isobutane alkylation is a typical carbocation chain growth reaction that requires proper acidity with less acidity change for its enhanced lifetime and activity of the catalyst. In this work, a family of protic ionic liquid/triflic acid as synergistic catalysts has been developed for isobutane alkylation, with special emphasis on its reusability. The slowest acidity change was found with varied concentrations of triflic acid for the protic ionic liquids which is probably buffered by binding and releasing the solubilized acid in the formed anionic cluster [N222H]-[CF3SO3(CF3SO3H)(x)] as indicated by FT-IR and H-1 NMR spectroscopy. As a promising isobutane alkylation catalyst, the protic ionic liquids have shown a maximum selectivity toward C-8 up to 86.23%, research octane number (RON) up to 97.3, and reusability up to 36 runs, outclassing the sulfuric acid or triflic add catalysts under the same reaction conditions. Apart from the excellent catalytic performance, the new catalytic system showed better impurities compatibility and significantly less corrosion rate to carbon steel and stainless steel than sulfuric acid and pure triffic acid.

WOS HeadingsScience & Technology ; Technology
Indexed BySCI
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(51374193) ; Special Program for International Science and Technology Cooperation and Exchange Program of China(2014DFA61670) ; Beijing Natural Science Foundation(2122052) ; International Cooperation and Exchange of the National Natural Science Foundation of China(51561145020) ; International Partnership Program for Creative Research Teams(20140491518)
WOS IDWOS:000381062800005
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Hebei Univ Sci & Technol, Coll Chem & Pharmaceut Engn, Shijiazhuang 050018, Peoples R China
2.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
3.Hebei Univ Sci & Technol, Coll Text & Garment, Shijiazhuang 050018, Peoples R China
4.Chinese Acad Sci, Inst Phys & Math, Wuhan Ctr Magnet Resonance, State Key Lab Magnet Resonance & Atom Mol Phys, Wuhan 430071, Peoples R China
Recommended Citation
GB/T 7714
Wang, Aoyun,Zhao, Guoying,Liu, Fangfang,et al. Anionic Clusters Enhanced Catalytic Performance of Protic Acid Ionic Liquids for Isobutane Alkylation[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2016,55(30):8271-8280.
APA Wang, Aoyun,Zhao, Guoying,Liu, Fangfang,Ullah, Latif,Zhang, Suojiang,&Zheng, Anmin.(2016).Anionic Clusters Enhanced Catalytic Performance of Protic Acid Ionic Liquids for Isobutane Alkylation.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,55(30),8271-8280.
MLA Wang, Aoyun,et al."Anionic Clusters Enhanced Catalytic Performance of Protic Acid Ionic Liquids for Isobutane Alkylation".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 55.30(2016):8271-8280.
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