Benzene Alkylation with Propane over Pt-Modified MFI Zeolites

Benzene alkylation with propane has been studied on acidic H-MFI zeolites with SiO2/Al2O3 ratios of 51, 104, and 325, mixed (H-MFI+Pt/CeO2) catalytic systems, and Pt/H-MFI bifunctional catalysts with Pt content of 0.02 and 0.3%. In some of the experiments, Zr2Fe intermetallic compound was added to the catalytic system to ensure H2 removal from the reaction zone. The reaction was carried out at atmospheric pressure, in the temperature range of 573–773 K, C3H8/C6H6=1, and WHSV=0.2–7 h−1. The conversion of propane and selectivity to propylbenzenes was found to increase in the following order of catalytic systems: H-MFI<(H-MFI+Pt/CeO2)