Preparation, Characterization, and Oxidative Dehydrogenation of C<sub>3</sub>H<sub>8</sub> with CO<sub>2</sub> of V-Cr/SBA-15/Al<sub>2</sub>O<sub>3</sub>/FeCrAl Metal Monolithic Catalysts

A series of V-Cr/SBA-15/Al 2 O 3 /FeCrAl metal monolithic catalysts with V content of 10wt% and Cr contents from 0 to 12.5wt% were prepared. The structure of the catalysts was characterized using XRD, XPS and TPR techniques. The catalytic activity for oxidative dehydrogenation (ODH) of propane with CO 2 was evaluated. The results indicate that the mesoporous structure of SBA-15 was retained after vanadium and chromium incorporation and the vanadium species were well dispersed. The V-Cr/SBA-15/Al 2 O 3 /FeCrAl catalyst with 1 0wt% V and 10 wt% Cr exhibited the best activity with a propane conversion of 49.9% and a propylene selectivity of 86.5% at 650 °C.