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AssigneeJohnson Matthey Public Limited Company
InventorsPaul Joseph ANDERSEN, Maria BRANDMAIR, Silvia Alcove CLAVE, Rodney FOO, Bruce GOMERSALL, Michael NASH, Alison Mary WAGLAND
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Articles comprising a catalyst film comprising VOx, MoO3 or WO3, and TiO2 deposited on a substrate are disclosed. The articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases. Methods for producing such articles deposit a catalyst film on the substrate to form a coated substrate, which is then calcined. When used in an SCR process, the coated articles have enhanced activity for NOx conversion, reduced activity for SOx conversion, or both. Light-weight, coated articles having high catalyst loads can be fabricated at the same or reduced dimensions when compared with laminated articles, and increased kNOx/kSOx ratios are available even from coated articles having relatively thin catalyst films. The articles should have particular value for power plant operations, where coal and high-sulfur fuels are commonly used and controlling sulfur trioxide generation is critical.
An article comprising:
An article comprising:
An article comprising:
An article comprising:
A method for producing an article having selective catalytic reduction activity, the method comprising:
A method for producing a selective catalytic reduction catalyst from a used SCR article, the method comprising:
Dependencies are inferred from the claim text.