Performance of Y-Mg-Al-F Catalysts for Catalytic Pyrolysis of 1,1,1,2-Tetrafluoroethane to Trifluoroethylene

doi:10.3724/SP.J.1095.2014.30338

Chinese Journal of Applied Chemistry

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Performance of Y-Mg-Al-F Catalysts for Catalytic Pyrolysis of 1,1,1,2-Tetrafluoroethane to Trifluoroethylene

ZHAO Yang¹, YU Chengang¹, ZHOU Qiang², WU Zhouan², WANG Shuhua², LUO Mengfe^1*

(1.Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces,Institute of
Physical Chemistry,Zhejiang Normal University,Jinhua 321004,China;
2.Technology Center of Juhua Group,Quzhou 324004,China)

Received:2013-07-08 Revised:2013-09-05 Published:2014-04-10 Online:2014-04-10
Contact: Mengfei Luo

Abstract

Abstract: A series of Y-Mg-Al-F catalysts was prepared by the deposition-precipitation method, and characterized by X-ray diffraction(XRD), NH3-TPD(temperature-programmed desorption) and Raman spectroscopy. The catalysts were used in catalytic pyrolysis of 1,1,1,2-tetrafluoroethane(HFC-134a) to trifluoroethylene(TrFE). Their catalytic performances were compared with AlF3 catalyst. The results show that the Y-Mg-Al-F catalyst calcined at 1100 ℃ exhibits higher activity and stability than others. The conversion of HFC-134a is higher than 25% at a reaction temperature of 400 ℃. The surface acidity and carbon deposits on the catalyst surface have main effects on the catalytic activity and stability of catalysts.

Key words: tetrafluoroethane, catalysis pyrolysis, trifluoroethylene, deposition-precipitation, Y-Mg-Al

CLC Number:

O643.3

ZHAO Yang1, YU Chengang1, ZHOU Qiang2, WU Zhouan2, WANG Shuhua2, LUO Mengfe1*. Performance of Y-Mg-Al-F Catalysts for Catalytic Pyrolysis of 1,1,1,2-Tetrafluoroethane to Trifluoroethylene[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2014.30338.

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Performance of Y-Mg-Al-F Catalysts for Catalytic Pyrolysis of 1,1,1,2-Tetrafluoroethane to Trifluoroethylene

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