The chemistry involved in the selective catalytic reduction of oxides of nitrogen (NOx) to nitrogen is outlined and the requirements of a practical NOx reduction catalyst are summarized. The effects of temperature, gas composition, NOx concentration, and sulfur dioxide on the activity of some potential NOx catalysts have been studied. Steady-state engine dynamometer endurance runs with ruthenium and non-ruthenium catalysts are described, and some vehicle durability data with particulate and monolithic base metal containing NOx catalysts are also presented.


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    Title :

    Nitrogen Oxide Removal Catalysts for Purification of Automobile Exhaust Gases


    Additional title:

    Sae Technical Papers


    Contributors:
    Ashmead, D.R. (author) / Campbell, J.S. (author) / Farmery, K. (author) / Davies, P. (author)

    Conference:

    1974 Automotive Engineering Congress and Exposition ; 1974



    Publication date :

    1974-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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