Rational Approximations of Effectiveness Factor and General Diagnostic Criteria for Heat and Mass Transport Limitations

Abstract

Abstract Reactions occurring in the presence of porous catalysts are accompanied by transport of heat and mass in the whole structure formed by the porous body and the fluid film surrounding the external surface. Under these circumstances the chemical process can take place in the presence of temperature and concentration gradients in the porous pellet as well as in the fluid layer formed around the particle.