CrOx/SiO2 catalysts prepared by metal vapour synthesis: physical-chemical characterisation and functional testing in oxidative dehydrogenation of propane
Articolo
Data di Pubblicazione:
2011
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%.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
supported Cr catalyst, selective oxidation, propane oxidative dehydrogenation, CO2 as oxidant, metal vapour synthesis
Elenco autori:
M.A. Botavina; C. Evangelisti; Yu.A. Agafonov; N.A. Gaidai; N. Panziera; A.L. Lapidus; G. Martra
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