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Citation: ZHAO Yang, YU Chengang, ZHOU Qiang, WU Zhouan, WANG Shuhua, LUO Mengfei. Performance of Y-Mg-Al-F Catalysts for Catalytic Pyrolysis of 1,1,1,2-Tetrafluoroethane to Trifluoroethylene[J]. Chinese Journal of Applied Chemistry, ;2014, 31(4): 400-405. doi: 10.3724/SP.J.1095.2014.30338 shu

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

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

Corresponding author: LUO Mengfei,
Received Date: 8 July 2013
Available Online: 6 September 2013
Fund Project: 教育部创新团队发展计划项目(IRT0980) (IRT0980)

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.
- tetrafluoroethane,
- catalysis pyrolysis,
- trifluoroethylene,
- deposition-precipitation,
- Y-Mg-Al
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