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Brevet Année : 2002

Method for simultaneously abating nitric oxides and nitrous oxides in gases containing them

Résumé

The invention concerns a method for purifying flue gases before they are released into the atmosphere of their nitrogen oxides N2O and NO.sub.x by reaction with ammonia by causing them to circulate at temperatures between 200 and 600 °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.

Domaines

Catalyse
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Dates et versions

hal-00180410 , version 1 (19-10-2007)

Identifiants

  • HAL Id : hal-00180410 , version 1

Citer

Gerard Delahay, Mathias Mauvezin, Bernard Neveu, Geneviève Neveu, Bernard Coq. Method for simultaneously abating nitric oxides and nitrous oxides in gases containing them. United States, Patent n° : US6890501. 2002. ⟨hal-00180410⟩
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