Nitrogen oxide-reducing catalyst and process for reducing...

Details Nitrogen oxide-reducing catalyst and process for reducing... Nitrogen oxide-reducing catalyst and process for reducing...

B - Operations, Transporting

01

J

B01J 29/46 (2006.01) B01D 53/56 (2006.01) B01D 53/86 (2006.01) B01D 53/94 (2006.01) B01J 29/04 (2006.01)

Patent

CA 2190456

The present invention relates to a catalyst for reducing nitrogen oxides (NOx) in exhaust gas, comprising crystalline metallosilicate ion-exchanged with Co, and channels of particular structure formed in the crystalline metallosilicate and to a NOx reduction process using said catalyst; said catalyst having a high selectivity for NOx reduction and a high NOx reduction activity even at low temperatures.

L'invention concerne un catalyseur pour la réduction des émission d'oxydes d'azote (NOx) dans les gaz brûlés, qui comprend un métallosilicate cristallin soumis à un échange d'ions avec du Co, et présentant des voies de structure particulière, ainsi qu'un procédé de réduction des émissions d'oxyde d'azote au moyen dudit catalyseur. Ledit catalyseur présente une sélectivité élevée pour la réduction des émission de Nox et une activité de réduction des émissions de Nox élevée, même à basses températures.

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