To understand the effect of diffusion into catalyst washcoat pores on the NOx purification performance, the pseudo-2D model was developed, combining diffusion theory and the elementary reaction model. Using a Pt/Al2O3 + CeO2 catalyst, the rate coefficients for NOx storage and reduction reactions were determined with a plug flow reactor. As utilization, the sensitivity analysis on the performance showed that meso pore properties, particle size, and washcoat thickness were found to have large influences. Moreover, by the combination of machine learning as material informatics approach, it was possible to comprehensively calculate the performance under various washcoat properties.


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    Title :

    Catalyst Design Study of Detailed Reaction Model including Gas Diffusivity into the Washcoat


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    2019 JSAE/SAE Powertrains, Fuels and Lubricants ; 2019



    Publication date :

    2019-12-19




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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