Comprehensive Model of a Catalytic Converter

Abstract

The paper’s scope is devoted to atmospheric air protection based on developing mathematical models of catalytic processes to purify environmentally hazardous substances at gas mixtures in the proposed design converter. The existing mathematical models of catalytic processes on a solid surface have been analyzed, and the relevance of further research on the complex rendering of a description of catalytic reactions taking into account the interaction features «gas flow − solid surface − heat and mass transfer along the surface − transformation processes in the internal volume and on outlet surface is an eco-safe gas mixture». Based on the conversion’s theoretical description, a three-level model describing the constructed catalytic converter processes is proposed. The connection of theoretically grounded models with known phenomenological models of carbon monoxide oxidation is shown. The advantages of the three-level model of catalytic conversion as the basis for making decisions on improving the catalytic device structure are determined. Algorithms and software for modeling the catalytic purification processes of gas mixtures from technogenic dangerous objects have been developed. The advantage of the proposed mathematical models and algorithms is their high speed, the ability to automate environmental safety monitoring based on the developed information and software products, the qualitative and quantitative agreement of the obtained numerical results with the results of experimental studies.