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Mercury-Free Nitrogen-doped Activated Carbon Catalyst: An Efficient Catalyst for the Catalytic Coupling Reactions of Acetylene and Ethylene Dichloride to the Vinyl Chloride Monomer

Abstract

The global “Minamata Convention on Mercury” came into effect in 2017 exerting huge environmental pressure on acetylene-based polyvinyl chloride (PVC) processes. Research and development of mercury-free catalytic synthesis technologies for the entire PVC industry and even the sustainable development of the chlor-alkali industry is of great significance. Here we report the catalyzed coupling reaction of acetylene and ethylene dichloride to synthesize vinyl chloride over a mercury-free, nitrogen-doped activated carbon catalyst (N@AC). The catalyst delivered stable performance with ethylene dichloride conversion over 95%, acetylene conversion at ~90%, and selectivity of vinyl chloride over 98% at 260 °C. Both X-ray photoelectron spectroscopy data and the catalytic activity of the catalysts revealed pyridinic N to be the active site. The results of this study show that the catalytic coupling reaction of acetylene and ethylene dichloride to vinyl chloride over a N@AC catalyst has a very attractive prospect in the PVC industry.

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Publication details

The article was received on 11 Dec 2017, accepted on 11 Jan 2018 and first published on 11 Jan 2018


Article type: Paper
DOI: 10.1039/C7RE00201G
Citation: React. Chem. Eng., 2018, Accepted Manuscript
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    Mercury-Free Nitrogen-doped Activated Carbon Catalyst: An Efficient Catalyst for the Catalytic Coupling Reactions of Acetylene and Ethylene Dichloride to the Vinyl Chloride Monomer

    Z. shen, H. Zhao, Y. Liu, Z. Kan, P. Xing, J. Zhong and B. Jiang, React. Chem. Eng., 2018, Accepted Manuscript , DOI: 10.1039/C7RE00201G

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