ISOPROPANOL DIFFUSION AND DEHYDRATION IN ZEOLITE HZSM-5.SPECTROKINETIC STUDY

摘要

The isopropanol diffusion and dehydration in zeolite HZSM-5 were studied by FTIR spectroscopy.The alcohol dehydration was shown to start at the temperature above 60°C.It was found that at temperatures above 350°C,the isopropanol dehydration was limited by diffusion in the mesopores of zeolite.The method developed allows studying the kinetics of interactions of the reagent molecules with the OH-groups at the external surface of the zeolite and inside its channels.