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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received November 9, 2007
Accepted December 15, 2007

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Alkylation of isobutane and butene using chloroaluminate imidazolium ionic liquid as catalyst: Effect of organosulfur compound additive

Jie Zhang Chongpin Huang^† Biaohua Chen Jianwei Li Yingxia Li

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R., China

huangcp@mail.buct.edu.cn, 2004080056@grad.buct.edu.cn

Korean Journal of Chemical Engineering, September 2008, 25(5), 982-986(5), 10.1007/s11814-008-0159-2

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Abstract

Abstract.Alkylation of isobutane and butene was carried out in a batch unit using 1-butyl-3-methylimidazolium chloride (BMIC)-aluminium (III) chloride (AlCl3) ionic liquid as catalyst. The effects of additives of butyl thioalcohol and ethyl thioether on the properties of ionic liquids for alkylation were investigated. Improvement of production distribution with high yields of isooctane and selectivity of TMP under a mild reaction condition was observed after addition of butyl thioalcohol. Moreover, the effects of operating variables were investigated and the mechanism was discussed.

Keywords

Alkylation Isobutane Butene-2 Ionic Liquids Organosulfur

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