Isomerization of n-Heptane on Platinum-Zeolite Catalysts in the Presence of Cyclohexane and Benzene

Abstract

Effect of cyclohexane and benzene on the isomerization of n-heptane on Pt/BEA-Al₂O₃ and Pt/MORAl₂O₃ catalysts was studied. In the presence of catalysts with platinum deposited from a [Pt(NH₃)₄]Cl₂ solution, cyclohexane and benzene inhibit the conversion of n-heptane. At the same time, the presence of cycloalkanes and aromatic hydrocarbons leads to an increase in the isomerization selectivity due to the suppression of side reactions of hydrocracking. Samples based on the BEA zeolite were found to be more active as compared with similar samples based on mordenite.