Preparation and Investigation of Alumina-Zeolite Composite Materials

Abstract

In this research, alumina-zeolite composite materials were synthesised by mechanical activation and oxidation sintering technique. A comprehensive examination of the microstructure of the starting raw materials and the sintered ceramic specimens have been studied via X-ray diffraction (XRD) and scanning electron microscopy (SEM). Moreover, several properties were investigated such as volume shrinkage, density, porosity, weight loss and water absorption based on the compositions of the composite specimens, sintering temperature, and microstructure. The authors have found that the raw material compositions and the sintering temperature have great influence in the microstructure and the characteristic of the final prepared ceramic specimens.

Effect of H-ZSM-5 zeolite content on the intrinsic kinetics of methanol dehydration to dimethyl ether over H-ZSM-5/Al2O3 molded catalyst

“…Typical preparations of zeolite/alumina composite catalysts include in situ synthesis of zeolite on Al 2 O 3 particles, 36 mechanical milling of a zeolite/Al 2 O 3 mixture, 37 or kneading zeolite and Al 2 O 3 powders with water. 38 In this paper, we used a different procedure.…”