Dehydrogenation of Propane over Rh-added V2O5/SiO2 Catalysts
--Effect of the Presence of CO2 and the Rh Addition on the Reaction--

Shin-ichi ITO*, Shintaro ISHIGURO, Masatoshi SATOZAWA and Kimio KUNIMORI*

Institute of Materials Science, University of Tsukuba; Tsukuba-shi 305-8573 Japan

The dehydrogenation of C3H8 and the reduction of CO2 were carried out simultaneously using Rh-added V2O5/SiO2 catalysts. The addition of Rh to V2O5/SiO2 and the presence of CO2 in the reactant flow increased the yield of C3H6 at the steady state of the reaction. CO2 may be utilized as an oxidant for the reaction and/or may be used to remove produced carbon by reverse Boudouard reaction. In particular, the addition of very small amount of Rh (0.1 wt%) was effective to increase the effect of CO2 addition.

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