PETROLEUM PROCESSING AND PETROCHEMICALS ›› 2025, Vol. 56 ›› Issue (1): 30-39.

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RESEARCH PROGRESS ON DIFFUSION AND REACTION IN GAS-SOLID MULTIPHASE CATALYST

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  • Received:2024-04-08 Revised:2024-05-08 Online:2025-01-12 Published:2024-12-27

Abstract: The reaction and transport usually coexist in chemical processes. Gas-solid multiphase catalysts generally have complex multi-level pore structures, and their catalytic performance depends on the coupling of reaction and transport within their pores. Revealing the coupling of reaction and transport and obtaining the reaction kinetics at the particle scale of catalysts have important scientific research significance and industrial application value for the optimization design and preparation of new catalysts. This paper reviews the latestresearchprogressonthe reaction and transport in the pores of gas-solid multiphase catalysts, and the mechanism of reaction transport coupling. The focus will be on the different models and methods in simulation research and their applications in catalytic reactions.It is pointed out that combining artificial intelligence methods such as machine learning with multi-scale simulation will become a powerful tool for studying complex catalytic reaction systems.

Key words: reaction-transport coupling, pseudo-particle, multi-scale, meso-scale, molecular simulation