Zone coated filter, emission treatment systems and methods

Details Zone coated filter, emission treatment systems and methods Zone coated filter, emission treatment systems and methods

F - Mech Eng,Light,Heat,Weapons

01

N

F01N 3/00 (2006.01) B01D 53/94 (2006.01)

Patent

CA 2671279

Exhaust treatment filters, systems, and methods are disclosed. According to one or more embodiments, a particulate filter is zone coated with an oxidation catalyst and is used in an emission treatment system or method including a NOx reducing catalyst and an optional NH3 destruction catalyst.

La présente invention concerne des filtres, des systèmes et des procédés de traitement des gaz d'échappement. Selon un mode de réalisation ou plus, un filtre à particules présente des zones revêtues d'un catalyseur d'oxydation et on l'utilise dans un système ou dans un procédé de traitement des émissions comprenant un catalyseur réducteur de NOx et un catalyseur facultatif destructeur de NH3.

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