Citation: LIU Ying, SUN Hong-juan, CONG Ying-nan, HU Rui-sheng. Study on the selectivity of isobutane/2-butene alkylation catalyzed by ionic liquid with Cu compound[J]. Journal of Fuel Chemistry and Technology, ;2014, 42(8): 1010-1016. shu

Study on the selectivity of isobutane/2-butene alkylation catalyzed by ionic liquid with Cu compound

1.
School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China

Corresponding author: LIU Ying,
Received Date: 21 March 2014
Available Online: 10 June 2014
Fund Project: 国家自然科学基金(21266015)。 (21266015)

The Cu-containing ionic liquids (IL), like [BMIm]Cl-1.8AlCl₃-0.5CuCl and [Et₃NH]Cl-1.8AlCl₃/ CuAlCl₄, were synthesized and characterized. The selectivity of isobutene/butene alkylation of Cu-containing IL was also investigated. The results showed that the selectivity had little relation to the acidity of Cu-containing IL. The research octane number (RON) of [Et₃NH]Cl-1.8AlCl₃/CuAlCl₄ alkylate could be higher than 100, which was better than those obtained by sulfuric acid, common chloroaluminate IL, and composite IL under the identical reaction conditions. The complexation of CuAlCl₄ with 2-butene in alkylation process should be accounted for the super selectivity of trimethylpentane (TMP) of isobutane alkylation catalyzed by Cu-containing IL.
- ionic liquid,
- isobutane,
- alkylation,
- selectivity
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沈阳化工大学材料科学与工程学院沈阳 110142