A STUDY OF THE KINETICS AND MECHANISM OF THE SELECTIVE OXIDATIVE DEHYDROGENATION REACTİON OF CYCLOPENTANE TO CYCLOPENTADIENE-1,3 OVER MODIFIED ZEOLITE CATALYSTS

The reaction of cyclopentane has been studied on HY zeolite at 3800C. Cyclopentene and cyclopentadiene formed a stable initial product by the dehydrogenation of the raw material, although molecular hydrogen was not found as the primary product. The catalytic activity of the clinoptilolite in the reaction of selective oxidative dehydrogenation of cyclopentane to cyclopentadiene have been measured experimentally and modelled theoretically at several temperatures. It was revealed that when using of clinoptilolite with these cations{ Cu2+ (0.5 mas.%), Zn2+ (0.2 mas.%), Co 2+ (0.1 mas.%), Cr 3+(0.1 mas.%) and CL[Co 2+ (0.5 mas.%)] heterogenic catalysts show the more activity in this reaction and theyare prepared by the ion-exchange method. The theoretical calculation also suggest that catalytic reactions of the process proceed in a highly non-synchronous or even non-consecutive fashion. The experimental data suggest that the active centers containing the components of the catalyst are grouped and the reaction pathways are described by taking into account bonding energies that exchange cations combine with dissociative adsorbed oxygen. The energy barriers and the rate constants of the catalytic systems were accurately modelled by the correlated electronic structure and calculation of the dual-level variational transition state theory