The oxidative dehydrogenation of propane with CO2 over supported Mo2C catalyst

F. Solymosi, R. Németh, A. Oszkó

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Abstract

Following the interaction of propane with Mo2C/SiO2 at 373-573 K, the formation of πbonded and di-σ-bonded propylene, and propylidyne were identified by Fourier transform infrared spectroscopy. The presence of CO2 exerted very little influence on the formation of these surface species. CO2 adsorbs weakly and non-dissociatively on Mo2C catalysts below 773 K. At higher temperature CO2 oxidizes the Mo2C; this process was followed by X-ray photoelectron spectroscopy. Mo2C/SiO2 is an effective catalyst for the oxidative dehydrogenation of propane. The selectivity to propylene at 773-873 K is 85-90% The yield of propylene production is ∼11% at 943 K. Other hydrocarbon products are ethylene, methane and butane. It is assumed that the Mo oxycarbide formed in the reaction between CO2 and Mo2C plays an important role in the activation of propane.

Original languageEnglish
Pages (from-to)339-344
Number of pages6
JournalStudies in Surface Science and Catalysis
Volume136
Publication statusPublished - Jan 1 2001

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ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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