Process for catalytic decomposition of nitrogen protoxide
AssigneeSued-Chemie Catalysts Italia S.R.L.
InventorsAlberto Cremona, Edoardo Vogna
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Abstract
A process for removing nitrogen protoxide from gas mixtures which 5 contain it, comprising contacting with a catalyst which contains mixed oxides of copper, manganese and rare earth metals in an amount expressed as percentage by weight of CuO, MnO and rare earth metal oxide in the lowest state of valency of 20-45% CuO, 50-60% MnO, and 5-20% rare earth metal oxide.
Claims7
A process for removing nitrogen protoxide from gas emissions from adipic acid plants in a one-bed procedure comprising the single step of contacting the gas emissions with a compound which comprises mixed oxides of copper, manganese and lanthanum having a composition expressed as percentage by weight of 55-60% MnO, 25-40% CuO, 9-14% La2O3, and thereby providing a catalyst with high catalytic activity in the decomposition of N2O to oxygen and nitrogen and removing NOX.
Dependencies are inferred from the claim text.