product presentation

           Within a certain exhaust temperature range, ammonia produced by the decomposition of urea aqueous solution is used as a reducing agent to reduce NOx in the exhaust gas to N2, so as to effectively reduce NOx emissions in the exhaust gas.

         Advantages: At present, SCR catalysts for diesel engines mainly include vanadium-based SCR catalysts and zeolite-based SCR catalysts. Traditional vanad-based SCR catalyst has good sulfur resistance, low toxicity and high conversion efficiency at medium temperature. The zeolite-based SCR catalyst system has the advantages of wide temperature window, good high temperature stability, high purification efficiency, non-toxic, and its performance is obviously better than that of V2O5/WO3/TiO2 catalyst.

        Vanad-based: V-SCR catalyst can meet the national V emission standards of diesel road country IV, National V and non-road small and medium power diesel engines; Molecular sieve: mainly used in road diesel engine country V, Ⅵ and non-road diesel engine country V and above emission standards

technical parameters

    Vanadyl  SCR：

    　　NOx conversion efficiency ≥45% at 200℃;

    　　Catalytic activity window >260℃;

    　　After aging at 550℃ for 200H, catalyst attenuation ≤10%;

    　　Under WHTC and WHSC test conditions, the catalytic performance can meet the requirements of National V emission regulations;

     Cu-SCR：

　　    NOx conversion efficiency ≥80% at 200℃;

　　    Catalytic activity window ≥320℃;

　　    After aging at 650℃ for 100H, the average reduction of NOx conversion efficiency at each temperature point of the catalyst is less than 5%.

　　    Under WHTC, WHSC and PEMS test conditions, the catalytic performance can meet the requirements of National sixth emission regulations;