ANALYSIS AND MODELING OF CATALYTIC PROCESSES

The main stages in the modeling of catalytic processes and the methods for construction and analysis of the models of physicochemical proces ses, occurring in the catalyst grain and in the catalytic reactor, are considered. New procedures in the laboratory and commercial experimen ts, ensuring sufficient accuracy in the construction of models of the catalytic reactor and the physicochemical phenomena accompanying the c atalysis, are analyzed. Problems related to the sequential planning an d analysis of the laboratory and commercial experiment are formulated. Equations of the diffusion stoichiometry (for the gas-solid systems) and reactor stoichiometry (for the catalytic reactors) are derived. Th ese equations allow effective algorithms to be developed for solving t he problems of interphase heat and mass transfer in the gas-solid syst ems and for calculating the working regimes of the catalytic reactors. Problems of determining the multiplicity of stationary states in the catalyst grain and in the catalytic reactor are considered. Possible m ethods for the intensification of catalytic processes are analyzed.