A VERSATILE LATTICE SIMULATOR FOR FLUID-SOLID NONCATALYTIC REACTIONS IN COMPLEX MEDIA

A versatile lattice simulator for fluid-solid noncatalytic reactions i s developed in detail in order to study linear, nonlinear, and nonisot hermal kinetics in complex media, in the presence of multicomponent di ffusion and n-solid reactant species. The simulator is based on a time -splitting algorithm for the diffusion and for the reaction steps. The simulator is quantitatively checked in many different cases involving initially nonporous particles constituted by a solid reactant dispers ed in an inert matrix. The influence of spatial correlation properties in the case of uniform and nonuniform solid reactant distribution is analyzed in detail.