Effect of the nature of silicon source on physicochemical properties of high-silica zeolites and the activity of Zn-pentasils prepared on their basis in the course of aromatization of lower alkanes

Abstract

The effect of the nature of the silicon source on the physicochemical properties of synthesized zeolites and the activity of Zn-containing catalysts prepared on their basis in the course of conversion of the propane-butane fraction into aromatic hydrocarbons is studied. It is shown that the silicon source plays an important role in the hydrothermal synthesis of zeolite. It has an effect on the duration of synthesis but its effect on the physicochemical characteristics of the resulting product is minor. It is established that the activity and selectivity of Zn-containing catalysts for the aromatization of lower alkanes are practically independent on the nature of the silicon source used in the synthesis of the high-silica zeolite, which is an acid carrier of these catalysts.