Umicore Ag & Co Kg

Umicore Ag & Co. Kg

Birgit Friedrich

Christoph Hengst

Christoph Reith

Gordon Keitl

The present invention relates to a composition comprising platinum supported on titanium oxide, the platinum particles having an average particle diameter of 50-200 nm. The composition has a surprisingly low light-off temperature for the ammonia oxidation and a high selectivity for oxidation to N2.

Catalyst for reducing ammonia emissions

The present invention relates to a catalyst, which comprises * a carrier substrate with a first end a and a second end b, and length L, * a material zone A containing a platinum group metal on a support material with a load of 40 to 150 g/l, relative to the volume of the carrier substrate and * material zone B containing a platinum group metal on a support material with a load of 75 to 200 g/l, relative to the volume of the carrier substrate, wherein material zone B has a greater content of platinum group metal, relative to the volume of the carrier substrate and calculated in g/l, than material zone A, and wherein material zone B has a proportion of pores with a diameter of 0.5 to 50 μm of 20 to 30%.

Oxidation catalyst with phosphorus trap

The present invention relates to a catalyst that comprises a carrier body with a length L, which extends between a first end face 'a' and a second end face 'b', and differently composed, catalytically-active material zones A, B, and C arranged on the carrier body, wherein

Growing community of inventors

Otzberg, Germany

Birgit Friedrich