zoned catalytic substrate monolith, exhaust system for an internal combustion engine, mechanism, vehicle, and methods for treating an exhaust gas from an internal combustion engine and for manufacturing a zoned catalyzed substrate monolith

摘要

1/1 summary â € œZoned catalyzed substrate bed, exhaust system for an internal combustion engine, mechanism, vehicle, and methods for treating an exhaust gas from an engine internal combustion system and for fabricating a zoned catalyzed substrate monolith - a zoned catalyzed substrate monolith comprises a first zone and a second zone, wherein the first zone and the second zone are arranged axially in series, wherein the first zone comprises a platinum group metal loaded onto a support and a first metal base oxide selected from the group consisting of iron oxide, manganese oxide, copper oxide, zinc oxide , nickel oxide and mixtures thereof or a first base metal selected from the group consisting of iron, manganese, copper, zinc, nickel and mixtures thereof loaded on an inorganic oxide and the second zo but comprises copper and iron charged in a zeolite and a second metal base oxide selected from the group consisting of iron oxide, manganese oxide, copper oxide, zinc oxide, nickel oxide and mixtures thereof or a second base metal selected from the group consisting of iron, manganese, copper, zinc, nickel and mixtures thereof loaded on an inorganic oxide, wherein the second base metal is different from the first base metal.