Catalyzed SCR filter and emission treatment system

  • US 7,902,107 B2
  • Filed: 02/08/2008
  • Issued: 03/08/2011
  • Est. Priority Date: 08/05/2003
  • Status: Active Grant
First Claim
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1. A catalyst article consisting essentially of a wall flow monolith and catalytic material, wherein the wall flow monolith has a plurality of longitudinally extending passages formed by longitudinally extending walls bounding and defining said passages, wherein the passages comprise inlet passages having an open inlet end and a closed outlet end, and outlet passages having a closed inlet end and an open outlet end, and the wall flow monolith contains catalytic material comprising an SCR catalyst composition that permeates the walls at a loading up to 2.4 g/in3.

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