Studies of the V2O5/MPO4(M=Al, Zr, Ca) Catalysts in Propane Oxidative Dehydrogenation

Abstract

Abstract: The supports of MPO₄(M=Al, Zr, Ca) were prepared and 0.6%～60%V₂O₅was supported on them. The catalysts are effective in the oxidative dehydrogenation of propane. The selectivity of C₃H₆over the catalysts decreases in the order of V₂O₅/Ca₃(PO₄)₂>V₂O₅/Zr₃(PO₄)₄>V₂O₅/AlPO₄, which followed the same trend of the basicity of the supports. The properties of the supports and the amount of loading had an effect on the redox property and the catalytic behavior of the catalysts. The ESR results indicated that the redox couple of V⁵⁺/V⁴⁺responded to the activity of oxidative dehydrogenation for propane.

Key words: Propane, Oxidative dehydrogenation, Supported vanadium-based catalyst

CLC Number:

O643.1

TrendMD:

ZHANG Wei-De, SHA Kai-Qing, LI Ji-Tao, WAN Hui-Lin. Studies of the V₂O₅/MPO₄(M=Al, Zr, Ca) Catalysts in Propane Oxidative Dehydrogenation[J]. Chem. J. Chinese Universities, 1999, 20(4): 608.

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Studies of the V₂O₅/MPO₄(M=Al, Zr, Ca) Catalysts in Propane Oxidative Dehydrogenation

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