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Alkylation of isobutane/butene promoted by fluoride-containing ionic liquids
Zhang, Honghua1,2; Liu, Ruixia2; Yang, Zhiqiang2; Huo, Feng2; Zhang, Ruirui2; Li, Zihang2; Zhang, Suojiang2; Wang, Yanji1
2018
发表期刊FUEL
ISSN0016-2361
卷号211页码:233-240
摘要In this work, the alkylation of isobutane and butene, catalyzed by sulfuric acid in the presence of the fluoride-containing ionic liquids [Bmim][PF6] and [Bmim][SbF6], was investigated. The use of the binary mixture catalysts brought to a higher C-8 selectivity and longer catalyst lifetime, compared with the results obtained when working with sulfuric acid only. This was attributed to the formation of new species when [Bmim][PF6] or [Bmim][SbF6] are added to sulfuric acid. The acidolysis of [Bmim][PF6] and [Bmim][SbF6] was accompanied by the release of hydrogen fluoride (HF) and the decomposition of anions to [PF6-x-2y(HSO4)(x)(SO4)(y)](-) and [SbF6-x-2y(HSO4)(x)(SO4)(y)](-), respectively. The presence of these new species after acidolysis was measured and confirmed by ion chromatography, H-1-Nuclear Magnetic Resonance (NMR), F-19-NMR and P-31-NMR. The production of HF and the complexation of anions and carbenium ions both play an important role in stabilizing the carbenium ion and improving the catalytic performance.
关键词Fluoride-containing Ionic Liquids Sulfuric Acid Isobutane/butene Alkylation Acidolysis Binary Mixtures
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.fuel.2017.09.029
收录类别SCI
语种英语
关键词[WOS]ACID-CATALYZED ALKYLATION ; SULFURIC-ACID ; TRIFLUOROMETHANESULFONIC ACID ; ISOBUTYLENE ALKYLATION ; OLEFINS ; BUTENE ; MECHANISM ; 1-BUTENE ; H2SO4
WOS研究方向Energy & Fuels ; Engineering
WOS类目Energy & Fuels ; Engineering, Chemical
项目资助者National Natural Science Foundation of China Petroleum & Chemical Corporation(U1662129) ; CAS ; National Natural Science Foundation of China(91434203) ; CAS(QYZDY-SSW-JSC0 11) ; State Key Laboratory of Multiphase Complex Systems, IPE, CAS(MPCS-2015-A-05)
WOS记录号WOS:000413449600026
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23286
专题多相复杂系统国家重点实验室
作者单位1.Hebei Univ Technol, Sch Chem Engn, Tianjin 300130, Peoples R China
2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn, State Key Lab Multiphase Complex Syst,Inst Proc E, Beijing 100190, Peoples R China
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Zhang, Honghua,Liu, Ruixia,Yang, Zhiqiang,et al. Alkylation of isobutane/butene promoted by fluoride-containing ionic liquids[J]. FUEL,2018,211:233-240.
APA Zhang, Honghua.,Liu, Ruixia.,Yang, Zhiqiang.,Huo, Feng.,Zhang, Ruirui.,...&Wang, Yanji.(2018).Alkylation of isobutane/butene promoted by fluoride-containing ionic liquids.FUEL,211,233-240.
MLA Zhang, Honghua,et al."Alkylation of isobutane/butene promoted by fluoride-containing ionic liquids".FUEL 211(2018):233-240.
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