Method for reducing automotive no emissions in lean burn...

Details Method for reducing automotive no emissions in lean burn... Method for reducing automotive no emissions in lean burn...

B - Operations, Transporting

01

D

B01D 53/56 (2006.01) B01D 53/94 (2006.01) B01J 29/40 (2006.01) B01J 29/46 (2006.01) F01N 3/10 (2006.01)

Patent

CA 2141564

A method is provided for reducing NOx for high flow applications such as NOx abatement in an exhaust gas from an internal combustion engine operating under lean burn conditions wherein NOX is reduced by hydrocarbon reductants. The method employs a hydrothermally stable catalyst comprising transition metal-containing ZSM-5 which is prepared by in-si- tu crystallization of an aggregate comprising ZSM-5 seeds, silica, and a crystalline silicate.

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