Oxidative dehydrogenation of isobutane on nickel and chromium oxide systems dispersed on different supports

• Autorzy: Moriceau P. , Grzybowska B. , Barbaux Y.
• Języki publikacji: EN

Abstrakty

EN

Nickel oxide and chromia supported on ThO2, CeO2 and SiO2 have been tested in oxidative dehydrogenation of isobutane. Both NiO- and Cr2O3-based systems have been found active in this reaction already around 300 degree C, the catalytic performance being dependent on the nature of the support. Chromia-based catalysts are more active and selective as compared with the NiO-based ones. The highest activity and selectivity have been observed for CrOX/CeO2 system. The basicity of the catalysts determined by a probe reaction of the isopropanol dehydrogenation follows the same sequence as the total activity in the oxidative dehydrogenation of isobutane, which suggests an activation of theC-H bond on basic centres of the catalysts.

Słowa kluczowe

EN

isobutane oxidative dehydrogenation; supported nickel oxide and chromia catalysts

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 1998
• Tom: Vol. 72, nr 5
• Strony: 910--915
• Opis fizyczny: Bibliogr. 20 poz., tab.

Twórcy

autor

Moriceau P.

autor

Grzybowska B.

autor

Barbaux Y.

• Institute of Catalysis and Surface Chemistry Polish Academy of Sciences 30-239 Kraków ul. Niezapominajek 3 Poland