B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/86 (2006.01)
Patent
CA 2366741
The invention concerns a method for purifying flue gases before they are released into the atmosphere of their nitrogen oxides N2O and NOx by reaction with ammonia by causing them to circulate at temperatures between 200 and 600 DEG C on a catalyst based on beta-zeolite loaded with iron. The invention is particularly useful for treating tail gases from factories producing nitric acid.
On peut épurer des gaz industriels avant leur rejet à l'atmosphère de leurs oxydes d'azote N2O et NO x par réaction avec l'ammoniac en les faisant circuler à des températures de 200-600 °C sur un catalyseur à base de zéolithe bêta chargée de fer. Le procédé s'applique notamment au traitement des gaz de queue des ateliers de production d'acide nitride.
Coq Bernard
Delahay Gerard
Mauvezin Mathias
Neveu Bernard (decede)
Gpn
Grande-Paroisse S.a.
Robic
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