Journal of Materials Research and Technology (Nov 2020)

Non-mercury catalytic acetylene hydrochlorination over Bi/CNTs catalysts for vinyl chloride monomer production

  • Lizhen Lian,
  • Lu Wang,
  • Haijun Yan,
  • Shahid Ali,
  • Jide Wang,
  • Ling Zhao,
  • Chao Yang,
  • Ronglan Wu,
  • Lida Ma

Journal volume & issue
Vol. 9, no. 6
pp. 14961 – 14968

Abstract

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The serial Bi/CNTs catalysts were prepared by ultrasonic-assisted impregnation method with bismuth chloride and carbon nanotubes. During acetylene hydrochlorination reaction, the Bi/CNTs catalyst with 20 wt% Bi loading exhibited an excellent catalytic performance with 91.7% acetylene conversion and 97.3% vinyl chloride selectivity in 10 h at T = 160 °C, GHSV(C2H2) = 120 h−1 and V(HCl): V(C2H2) = 1.29. It is proposed that the BiOCl with a stable Bi3+ species existed on the catalyst surface, which can be considered as the major active site in the Bi-based catalysts. Bi species loss and the carbon deposition formation are the main deactivation reasons for Bi/CNTs catalysts.

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