Lean NOx Trap (LNT) catalysts can effectively reduce NOx from lean engine exhaust. Significant research for LNTs in diesel engine applications has been performed and has led to commercialization of the technology. For lean gasoline engine applications, advanced direct injection engines have led to a renewed interest in the potential for lean gasoline vehicles and, thereby, a renewed demand for lean NOx control. To understand the gasoline-based reductant chemistry during regeneration, a BMW lean gasoline vehicle has been studied on a chassis dynamometer. Exhaust samples were collected and analyzed for key reductant species such as H₂, CO, NH₃, and hydrocarbons during transient drive cycles. The relation of the reductant species to LNT performance will be discussed. Furthermore, the challenges of NOx storage in the lean gasoline application are reviewed.


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    Titel :

    Lean Gasoline Engine Reductant Chemistry During Lean NOx Trap Regeneration


    Weitere Titelangaben:

    Sae Int. J. Fuels Lubr
    Sae International Journal of Fuels and Lubricants


    Beteiligte:
    Choi, Jae-Soon (Autor:in) / Parks, James E. (Autor:in) / Norman, Kevin (Autor:in) / Chambon, Paul (Autor:in) / Huff, Shean (Autor:in) / Prikhodko, Vitaly (Autor:in) / Partridge, William (Autor:in)

    Kongress:

    SAE 2010 Powertrains Fuels & Lubricants Meeting ; 2010



    Erscheinungsdatum :

    25.10.2010


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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