Oxidative Dehydrogenation of Propane over Molybdenum Supported on MgO−γ-Al2O3

Catalysts of Mo supported on MgO−γ Al2O3 were studied in the oxidative dehydrogenation of propane to propene. The catalysts were active and very stable, but the dehydrogenation selectivity was reduced by the formation of carbon oxides. Characterizations by XRD, XPS, Raman spectroscopy, electron para...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 1996-07, Vol.35 (7), p.2137-2143
Main Authors: Abello, M. C., Gomez, M. F., Cadús, L. E.
Format: Article
Language:English
Subjects:
Catalysis
Catalysts: preparations and properties
Chemistry
Exact sciences and technology
General and physical chemistry
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:Catalysts of Mo supported on MgO−γ Al2O3 were studied in the oxidative dehydrogenation of propane to propene. The catalysts were active and very stable, but the dehydrogenation selectivity was reduced by the formation of carbon oxides. Characterizations by XRD, XPS, Raman spectroscopy, electron paramagnetic resonance, and BET surface measurements were performed. The catalyst preparation method led to large and stable magnesium molybdate particles on the surface. EPR and XPS measurements gave clues about the fact that the active centers for the reaction include Mo5+ ions. A scheme for the surface architecture is proposed.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie9506779