Conversion of Benzene-Propane Mixtures on M, ReOX/Al2O3-HM Catalytic Systems

Y.H. Mamedaliyev's Institute of Petrochemical Processes of the Ministry of Science and Education, Az1025, Baku, Azerbaijan

*Corresponding author: Farida Babayeva, Y.H. Mamedaliyev's Institute of Petrochemical Processes of the Ministry of Science and Education, Az1025, Baku, Azerbaijan, Italy, Tel: +994705117743, E-mail: [email protected]

Received Date: August 29, 2024

Publication Date: November 11, 2024

Citation: Babayeva FA, et al. (2024). Conversion of Benzene-Propane Mixtures on M, ReO_x/Al₂O₃-HM Catalytic Systems. Nanoparticle. 5(1):15.

Copyright: Babayeva FA, et al. © (2024).

ABSTRACT

The conversion of C₆H₆:C₃H₈ mixtures on a mechanical catalyst mixture (MC) consisting of HY, HM or HZSM-5 zeolite and M, Re/Al₂O₃ was studied. As a result of propane activation in the presence of benzene on the catalytic system, the components of the benzene-propane mixture at low temperatures (473-673 K) are converted into alkylaromatic hydrocarbons C₉ and propene. It was found that propane dehydrogenation to propylene occurs already at 523 K with benzene as a stoichiometric reaction component. Based on the obtained data on the dependence of the yield of propylene and isopropylbenzene on the experimental conditions, an assumption was made about a common intermediate compound preceding the formation of these products. Thermodynamically unfavorable reactions of benzene dehydroalkylation with propane and the process of propane dehydrogenation are explained by the occurrence of conjugate oxidation-reduction interaction due to cyclic proton transfer between the zeolite and partially reduced centers of the metal component of the MC and alternating oxidation and reduction of these centers. As a result of the studies, the effect of benzene on the low-temperature activation of propane on mixed catalysts consisting of a mixture of (50 x 50) M, Re/Al₂O₃ + H-zeolite, leading to the formation of isopropylbenzene, propylene and C₉-alkylaromatic hydrocarbons, was established; the dependence of the yield of the conversion products of the C₆H₆:C₃H₈ mixture on the reaction conditions and the nature of the zeolite component of the mixed catalyst was established.

Keywords: Conversion of Mixtures C₆H₆:C₃H₈, Isopropylbenzene, Propene, C₉ Alkylaromatic