Please download the dossier by clicking on the dossier button x
×

Integrated LNT-TWC Catalyst

  • US 20150266014A1
  • Filed: 03/16/2015
  • Published: 09/24/2015
  • Est. Priority Date: 03/21/2014
  • Status: Active Grant
First Claim
Patent Images

1. A layered catalyst composite for an exhaust stream of an internal combustion engine, the layered catalyst composite comprising a catalytic material on a substrate, the catalytic material comprising at least two layers, wherein:

  • the first layer comprises rare earth oxide-high surface area refractory metal oxide particles, an alkaline earth metal supported on the rare earth oxide-high surface area refractory metal oxide particles, and at least one first platinum group metal component supported on the rare earth oxide-high surface area refractory metal oxide particles; and

    the second layer comprises a second platinum group metal component supported on a first oxygen storage component (OSC) and/or a first refractory metal oxide support and, optionally, a third platinum group metal supported on a second refractory metal oxide support or a second oxygen storage component.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×