Catalyst gauze and installation for the catalytic oxidation of ammonia
AssigneeUmicore AG & Co. KG
InventorsDirk Born, Dietmar Königs, Christian Goerens
Life of this patent
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Abstract
Catalyst gauze (1) for the reduction of the amount of N2O in an ammonia oxidation process, containing a first layer (2) of woven or knitted first wire material (4), whereby said first wire material (4) is made from Pd or a Pd-rich alloy, whereby said first layer (2) contains a reinforcement in the form of a second wire material (5) which is woven or knitted among the first wire material (4) and which has a different composition than the first wire material (5).
Claims15
A catalyst gauze for the reduction of the amount of N2O in an ammonia oxidation process, the gauze comprising a first layer, the first layer comprising:
- a woven or knitted first wire material, wherein said first wire material comprises Pd or a Pd-rich alloy, and
- a second wire material, which is woven or knitted among the first wire material thereby reinforcing the first layer, wherein the second wire material has a different composition than the first wire material and wherein the second wire material is disposed in loops which extend outside the first layer, such that at least 50 wt % of the second wire material is disposed outside the first layer.
A catalyst gauze for the reduction of the amount of N2O in an ammonia oxidation process, the gauze comprising a first layer and a second layer, the first layer comprising:
- a woven or knitted first wire material, wherein said first wire material comprises Pd or a Pd-rich alloy, and
- a second wire material, which is woven or knitted among the first wire material thereby reinforcing the first layer, wherein the second wire material has a different composition than the first wire material, and
- the second layer comprising:
- a woven or knitted third wire material, wherein said third wire material comprises a Pd or a Pd-rich alloy, and
- the second wire material, which is woven or knitted among the third wire material.
Dependencies are inferred from the claim text.