Obtaining the best composition of supported V2O5–MoO3/TiO2 catalyst for propane ODH reaction

The best composition for achieving maximum propene yields during the propane ODH reaction over supported V2O5–MoO3/TiO2 (VMoTi) catalysts were determined by applying statistical methodologies. Catalyst characterizations revealed that noninteracting surface vanadia and molybdena species exist. The kinetic parameters, apparent pre-exponential factors, and activation energies also were estimated for the propane ODH reaction over the VMoTi catalysts. Based on statistical methodologies, the maximum propene yields at iso-conversion were obtained for the catalysts containing high V and low Mo concentrations (3.42V0.6MoTi) and those containing low V and high Mo concentrations (0.6V3.42MoTi). Of the two, the 3.42V0.6MoTi catalyst is better, because it has the highest activity and provides the best propene yield at iso-conversion.