Deep oxidation of propane on Pt/Vanadia-Alumina catalysts

T.F. GARETTO; M.S. AVILA; V. V. RAO; K. V. CHARY; C.R. APESTEGUÍA

Salamanca, España

Congreso; EuropaCat IX; 2009

A series of V2O5-Al2O3 samples containing from 3 to 20 % V2O5 were prepared and characterized by several techniques. Pt/V2O5-Al2O3 catalysts were prepared by impregnating the support with a chlorine-free Pt solution. The Pt dispersion as determined by H2 chemisorption increased slightly with increasing V2O5 loading. The sample activity for the combustion of propane was studied by obtaining curves of hydrocarbon conversion (X) as a function of temperature (light-off curves) and kinetically-controlled X vs time tests. The propane oxidation rate on Pt/V2O5-Al2O3 catalysts increased with the amount of vanadium, probably because of the concomitant increase of the sample acidity