The influence of adsorption and desorption processes on the non-thermal plasma enhanced catalytic reduction of NOx on NaZSM5- and Al2O3-based lean-NOx catalysts (Pt-NH4ZSM5, Cu-NaZSM5, Fe-NaZSM5, Pt-Al2O3, Pd-Al2O3, CuO-Al2O3, Ag-Al2O3) was investigated by temperature programmed reaction experiments in the temperature range from 100 °C to 600 °C. Dodecane was used as a reducing agent. Strong HC adsorption- and desorption effects were observed on the zeolite catalysts, which were not influenced by plasma-pretreatment. Adsorption of NO2 and desorption of NO occurred on Al2O3-based catalysts. By plasma-pretreatment adsorption of NO2 was induced at low temperatures. NOx-reduction rates of the catalysts Cu-NaZSM5, Fe-NaZSM5, and the Ag-Al2O3 were increased substantially by plasma-pretreatment. Both plasma-induced and catalytic oxidation of HCs were limiting factors of the NOx-reduction obtained on these catalysts.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Plasma-Enhanced Adsorption and Reduction on Lean NOx-Catalysts


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Spring Fuels & Lubricants Meeting & Exhibition ; 2002



    Publication date :

    2001-09-24




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Plasma-enhanced adsorption and reduction on lean NOx-catalysts

    Hammer,T. / Kishimoto,T. / Krutzsch,B. et al. | Automotive engineering | 2001


    2001-01-3567 Plasma-Enhanced Adsorption and Reduction on Lean NOx-Catalysts

    Hammer, T. / Kishimoto, T. / Krutzsch, B. et al. | British Library Conference Proceedings | 2001


    Plasma-enhanced catalytic reduction of NOx in simulated lean exhaust

    Aardahl,C.L. / Habeger,C.F. / Balmer,M.L. et al. | Automotive engineering | 2000


    Plasma-Enhanced Catalytic Reduction of NOx in Simulated Lean Exhaust

    Chanda, A. / Habeger, C. F. / Aardahl, C. L. et al. | SAE Technical Papers | 2000


    NOx Storage and Reduction on Differentiated Chemistry Catalysts for Lean Gasoline Vehicles

    Vakkilainen, A. / Härkönen, M. / Heikkinen, R. et al. | SAE Technical Papers | 2001