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Zeolite Supported Ionic Liquid Catalysts for the Hydrochlorination of Acetylene

Industrial Catalysis Institute, Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, China
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Catalysts 2018, 8(9), 351; https://doi.org/10.3390/catal8090351
Received: 4 August 2018 / Revised: 22 August 2018 / Accepted: 24 August 2018 / Published: 27 August 2018
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Abstract

An efficient and stable heterogeneous Zeolite Supported Ionic Liquid Catalyst (IL/CaX) has been explored in acetylene hydrochlorination reaction. The IL/CaX catalyst exhibits excellent space time yields of vinyl chloride (VCM), when compared to the benchmark of Au/C systems. Through characterization and kinetic studies, the reaction follows a two-site mechanism, which is described as the adsorbed hydrogen chloride on the Ca2+ in zeolite, reacting with the adsorbed acetylene on the cation of ionic liquid to form vinyl chloride. The catalytic reaction takes place at the IL/CaX interface, whilst the upper interphase IL/CaX is not active. The deactivation of the catalyst is caused by the dissolving byproducts in the ionic liquid layer, which can be reactivated by a simple vacuum procedure. It is of great significance to study and develop green non-mercury catalysts, in acetylene hydrochlorination. View Full-Text
Keywords: zeolite supported ionic liquid catalyst; IL/CaX; Ca2+; acetylene hydrochlorination zeolite supported ionic liquid catalyst; IL/CaX; Ca2+; acetylene hydrochlorination
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Wang, B.; Lai, H.; Yue, Y.; Sheng, G.; Deng, Y.; He, H.; Guo, L.; Zhao, J.; Li, X. Zeolite Supported Ionic Liquid Catalysts for the Hydrochlorination of Acetylene. Catalysts 2018, 8, 351.

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