FIELD: turbines or turbomachines.
SUBSTANCE: catalytic product for treatment of exhaust gas flow containing one or many of NOx, hydrocarbons, CO, SOx and ammonia from gas turbine includes (a) a substrate having an inlet end and an outlet end defining an axial length; (b) an oxidative layer comprising an oxidation catalyst containing one or more noble metals, wherein the oxidative layer is positioned on the substrate and covers the substrate along the axial length of the substrate; and (c) an SCR layer comprising an SCR catalyst, wherein SCR-layer is arranged on oxidative layer and covers section of oxidative layer, wherein section is less than 100 %.
EFFECT: disclosed is a zoned catalyst for decomposition of ammonia for use in gas turbines.
16 cl, 10 dwg
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