In the present work catalysts prepared by a new perspective method of metal vapour synthesis were studied in the reaction of propane oxidative dehydrogenation in the presence ofCO2 as a mild oxidant. This method let to obtain on the catalyst surface a high dispersed chromium species even at high chromium loadings. On the surface of the catalysts with the chromium loading up to 6.0 wt% only chromate species were found, the further increase of the chromium loading results in the appearance of the -Cr2O3. The catalyst with 6.0 wt% demonstrated also the highest catalytic activity with the yield in propene 69%.

CrOx/SiO2 catalysts prepared by metal vapour synthesis: physical-chemical characterisation and functional testing in oxidative dehydrogenation of propane

BOTAVINA, Maria;MARTRA, Gianmario
2011-01-01

Abstract

In the present work catalysts prepared by a new perspective method of metal vapour synthesis were studied in the reaction of propane oxidative dehydrogenation in the presence ofCO2 as a mild oxidant. This method let to obtain on the catalyst surface a high dispersed chromium species even at high chromium loadings. On the surface of the catalysts with the chromium loading up to 6.0 wt% only chromate species were found, the further increase of the chromium loading results in the appearance of the -Cr2O3. The catalyst with 6.0 wt% demonstrated also the highest catalytic activity with the yield in propene 69%.
2011
166
1132
1138
http://www.sciencedirect.com/science/article/pii/S1385894710011666
supported Cr catalyst, selective oxidation, propane oxidative dehydrogenation, CO2 as oxidant, metal vapour synthesis
M.A. Botavina; C. Evangelisti; Yu.A. Agafonov; N.A. Gaidai; N. Panziera; A.L. Lapidus; G. Martra
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/84189
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