A diesel exhaust aftertreatment system and method are provided. The system includes a lean NOx trap for reducing NOx and a transition metal-exchanged zeolite booster catalyst positioned downstream from the lean NOx trap for further reducing NOx. The lean NOx trap includes a NOx adsorbent material and...http://www.google.es/patents/US8062618?utm_source=gb-gplus-sharePatente US8062618 - Exhaust aftertreatment system and method of treating exhaust gas
Exhaust aftertreatment system and method of treating exhaust gas
