Removal of nitrous oxide from gaseous effluents comprised thereof
AssigneeGrande-Paroisse S.A.
InventorSerge Tretjak
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Abstract
The N.sub.2 O values in gaseous effluents, notably those produced in various organic syntheses entailing nitric acid oxidation (for example the industrial scale production of adipic acid, of glyoxal and of glyoxylic acid), are catalytically decomposed at elevated temperatures over H-mordenite and ammonium mordenite catalysts, preferably the ammonium mordenites that have been exchanged with iron, cobalt or bismuth.
Claims15
A process for the decomposition of nitrous oxide in a gaseous effluent containing 30-80% N.sub.2 O, comprising contacting such effluent with an amount of a small pore H-mordenite or ammonium mordenite catalytically effective for decomposition of the nitrous oxide into nitrogen and oxygen and under conditions effective for the decomposition of the nitrous oxide.
Dependencies are inferred from the claim text.