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A.V. Smirnov, E.V. Mazin, O.A. Ponomoreva, E.E. Knyazeva, S.N. Nesterenko, I.I. Ivanova
Stud. Surf. Sci. Catal. 135, 2001, 25-O-05 (electronic version, 8 pages).
ABSTRACT. Benzene alkylation with ethane, propane and i-butane has been studied on acidic H-MFI zeolite with SiO2/Al2O3 ratio of 104; mixed (H-MFI + Pt/CeO2) catalytic systems and Pt/H-MFI bifunctional catalysts with Pt content of 0.3 %. In some of the experiments, hydride-forming metals (M) were added to the catalytic systems to ensure H2 removal from the reaction zone. The conversion of alkanes and the selectivity to the products of direct addition was found to increase in the following order of catalytic systems: H-MFI < (H-MFI + Pt/CeO2) < Pt/H-MFI < (Pt/H-MFI + M). The reactivity of alkanes increased in the following order of reactants: C2H6 < C3H8 < C4H10; while their alkylating ability was found to increase in the reverse order.