Study on Water-and Sulfur-Resistance of Low-Temperature SCR Catalysts Improved by Element Doping
H2O and SO2 are intrinsic components in flue gases.Low-temperature selective catalytic reduction(LT-SCR)catalysts are susceptible to H2O and SO2 poisoning.Elemental doping is one of the most effective methods to improve the water-and sulfur-resistance of SCR catalysts.The method of improving the water-and sulfur-resistance ofMn-,V-,Ce-and Fe-based low-temperature SCR catalysts by element doping was introduced,and the application of theoretical computation in the design of water-and sulfur-resistance of low-temperature DeNOx catalysts was presented.The aim is to provide a theoretical basis for the optimal design and construction of improved water-and sulfur-resistance of LT-SCR catalysts.
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