A two-chamber catalyst system for the aftertreatment of No. 2 Diesel exhaust is demonstrated. NOx conversion efficiencies greater than 90% were obtained over a broad range of operating temperatures and NOx levels. The system incorporates a catalyst (SCONOx™) for the removal of CO, hydrocarbons, and NOx from the exhaust stream and a sulfur catalyst (SCOSOx™) for the protection of the NOx catalyst from sulfur poisoning. Both catalysts are of sorbate or “trap” type. No. 2 Diesel and hydrogen were used as reductants. Tests of the catalysts were performed with various loads, temperatures, and NOx levels. A light-duty diesel engine with no particulate control was used for the tests. All tests were conducted using No. 2 Diesel fuel. NOx conversion decay is compared with and without sulfur catalyst protection.


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    Titel :

    NOx Sorbate Catalyst System with Sulfur Catalyst Protection for the Aftertreatment of No. 2 Diesel Exhaust


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Wagner, G. J. (Autor:in) / Parks, J. E. (Autor:in) / Campbell, L. E. (Autor:in) / Sanders, M. W. (Autor:in) / Epling, W. E. (Autor:in)

    Kongress:

    International Fuels & Lubricants Meeting & Exposition ; 1999



    Erscheinungsdatum :

    1999-10-25




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





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