Studies in catalytic steam gasification of petroleum coke with special reference to the effect of particle size

Abstract

The object of this work is to study the effect of particle size, porosity, and thickness of a pellet on the gasification of very low ash (<0.5%) petroleum coke with steam both in the presence and absence of catalyst. Isothermal runs were carried out in the temperature range 695-880/sup 0/C using different sizes of particles (0.037-0.59 mm) and also different thicknesses of flat plates (0-7 mm) prepared from these particles. The experimental results showed some unusual behavior. The rate constant was observed to increase with an increase in particle size as well as with a decrease in thickness of the flat plates.