A study of some factors affecting the efficiency of cracking catalysts

Abstract

The superiority as cracking catalysts of synthetic alumino-silicates to natural alumino-silicates has become evident in the last few years of the development of catalytic cracking. Unpublished results in this laboratory have confirmed this fact. The purpose of this investigation was to learn whether the lower efficiency of clays, which are natural alumino-silicates, is due to differences in certain measurable physical properties, such as surface area, pore sizes, porosity, and density, or to differences in the chemical nature of the surface.