tailieunhanh - Oxidative dehydrogenation of propane over V2O5 and K2O-V2O5 impregnated MgAl2O4 catalysts

The catalytic tests were performed in a fixed bed tubular quartz reactor system between 450 and 550◦C. It was observed that the conversion of propane increased but hydrocarbon selectivity decreased with increasing temperature over the V2O5/MgAl2O4 catalysts. The BET surface area values and surface acidities decreased upon potassium addition for the K-V2O5/MgAl2O4 catalysts, which resulted in a drastic drop in the conversion values obtained. The propylene and total hydrocarbon selectivities increased with increasing temperature. |

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