Effect of Radiation-Chemical Activation of the Rhodium*Chitosan Composite on the Zeolite Catalyst Properties in Dimethyl Ether Conversion to Light Olefins

Abstract

The effect of radiation-chemical treatment of the Rh*chitosan composite on the morphology, as well as on the textural and catalytic properties of the catalytic systems based on HZSM-5 zeolite modified with rhodium and chitosan was evaluated. A transmission electron microscopic examination showed that radiation-chemical reduction led to the formation of smaller rhodium nanoparticles in the Rh*chitosan composite and to their finely dispersed distribution over the zeolite catalyst surface, responsible for enhancement of the activity and operational stability of the catalyst in dimethyl ether conversion to light olefins.