Catalytic Oxidative Dehydrogenation of Propane and Isobutane over Rare Earth Oxyfluorides

Chinese Journal of Applied Chemistry ›› 1998, Vol. 0 ›› Issue (3): 76-78.

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Catalytic Oxidative Dehydrogenation of Propane and Isobutane over Rare Earth Oxyfluorides

Zhang Weide, Hong Bifeng, Gu Pingying, Wan Huilin, Tsai Khirui

Department of Chemistry, State Key Laboratory for Physical Chemistry of the Solid Surface and Institute of Physical Chemistry, Xiamen University, Xiamen 361005

Received:1997-10-06 Revised:1998-01-05 Published:1998-06-10 Online:1998-06-10

Abstract

Abstract: Three rare earth oxyfluorides Sm₂O₂/4CeF₂, Nd₂O₂/4CeF₂ and Y2O₂/4CeF₂ were prepared. They were active in oxidative dehydrogenation of propane and isobutane with high selectivity to propene and isobutene. The propane is easier to dehydrogenate than isobtuane, and the isobutane is easier to crack. XRD measurements indicated the existence of new phase such as CeO₂ and REF₂ or REOF as a result of the exchange between F^- and O^2- during the preparation. The in situ Raman spectra implied that O₂^- was the active species.

Key words: propane, isobutane, catalytic dehydrogenation, rare earth oxyfluoride

Zhang Weide, Hong Bifeng, Gu Pingying, Wan Huilin, Tsai Khirui . Catalytic Oxidative Dehydrogenation of Propane and Isobutane over Rare Earth Oxyfluorides[J]. Chinese Journal of Applied Chemistry, 1998, 0(3): 76-78.

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Catalytic Oxidative Dehydrogenation of Propane and Isobutane over Rare Earth Oxyfluorides

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