Improved 1-butene/isobutane alkylation with acidic ionic liquids and tunable acid/ionic liquid mixtures

S Tang, AM Scurto, B Subramaniam

Index: Tang, Shengwei; Scurto, Aaron M.; Subramaniam, Bala Journal of Catalysis, 2009 ,  vol. 268,  # 2  p. 243 - 250

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Citation Number: 59

Abstract

A new process for 1-butene/isobutane alkylation to yield C8-alkylates is described using binary mixtures of certain acidic imidazolium ionic liquids (ILs) and strong acids such as sulfuric or trifluoromethanesulfonic (triflic) acid. Equivalent or better conversion (> 95%), C8- alkylates selectivity (> 70%) and trimethylpentane/dimethylhexane selectivity (TMP/DMH> 7) were achieved with the IL/acid mixtures over the pure acids themselves. Six types of ...