Citation: Hang Li, Botao Wu, Jianhui Wang, Fumin Wang, Xubin Zhang, Gang Wang, Haichao Li. Efficient and stable Ru(III)-choline chloride catalyst system with low Ru content for non-mercury acetylene hydrochlorination[J]. Chinese Journal of Catalysis, ;2018, 39(11): 1770-1781. doi: 10.1016/S1872-2067(18)63121-3 shu

Efficient and stable Ru(III)-choline chloride catalyst system with low Ru content for non-mercury acetylene hydrochlorination

Hang Li ^a, ,
Botao Wu ^a ,
Jianhui Wang ^b ,
Fumin Wang ^a ,
Xubin Zhang ^a ,
Gang Wang ^c ,
Haichao Li ^c

a School of Chemical Engineering & Technology, Collaborative Innovation Center of Chemical Science and Chemical Engineering(Tianjin), Tianjin University, Tianjin 300350, China;
b Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China;
c College of Chemistry and Chemical Engineering, Qinghai Nationalities University, Xining 810007, Qinghai, China

Received Date: 16 May 2018
Revised Date: 6 June 2018

Fund Project: This work was supported by the National Basic Research Program of China (2012CB720302) and the National Key R&D Program of China (2016YFF0102503).

Herein, we report an excellent, supported Ru(Ⅲ)-ChCl/AC catalyst with lower Ru content, where the ionic complex ChRuCl₄ serves as the active component for acetylene hydrochlorination. The prepared heterogeneous Ru-10%ChCl/AC catalyst shows excellent activity and long-term stability. In this system, ChCl provides an environment for the ChRuCl₄ to be stabilized as Ru(Ⅲ), thus suppressing the reduction of the active species and the aggregation of ruthenium species during the reaction. The interaction between reactants and catalyst species was investigated by catalyst characterizations in combination with DFT calculations to disclose the effect of the ChRuCl₄ complex and ChCl on the catalytic performance. This inexpensive, efficient, and long-term catalyst is a competitive candidate for application in the hydrochlorination industry.
- Acetylene hydrochlorination,
- Catalytic activity,
- Heterogeneous catalysis,
- Ionic complex,
- Ruthenium
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