The widening of the selectivity windows of a three-way catalyst under A/F ratio modulation was shown to result from retention of adsorbed species on catalyst surfaces and their subsequent reaction with gas-phase reactants. A reaction model was developed based on adsorption properties of CO, HC and NOx and by computer simulation, the conversion efficiencies of CO, HC and NOx under A/F ratio modulation were calculated. The calculated and experimental results were in good agreement.


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    Title :

    Effect of Air-Fuel Ratio Modulation on Conversion Efficiency of Three-Way Catalysts


    Additional title:

    Sae Technical Papers


    Contributors:
    Kobayashi, H. (author) / Hirako, O. (author) / Nakayama, O. (author) / Komagome, R. (author) / Kaneko, Y. (author)

    Conference:

    Passenger Car Meeting & Exposition ; 1978



    Publication date :

    1978-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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