EP 0721368 A1 19960717 - NOBLE METAL CATALYSTS FOR THE REDUCTION OF NO x? IN THE EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES CONTAINING EXCESS OXYGEN
Title (en)
NOBLE METAL CATALYSTS FOR THE REDUCTION OF NO x? IN THE EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES CONTAINING EXCESS OXYGEN
Title (de)
EDELMETALLKATALYSATOREN ZUR NOx-REDUKTION IN VERBRENNUNGSMOTORABGASSEN MIT SAUERSTOFFÜBERSCHUSS
Title (fr)
CATALYSEURS A METAUX NOBLES ABAISSANT LA TENEUR EN NO x? DE GAZ D'ECHAPPEMENT DE MOTEURS A COMBUSTION INTERNE CONTENANT UN EXCEDENT D'OXYGENE
Publication
Application
Priority
- US 9411014 W 19940929
- US 13034093 A 19931001
Abstract (en)
[origin: WO9509687A1] Removal of carbon monoxide, hydrocarbons, and nitrogen oxides from the exhaust gas from lean-burn, diesel and other engines which produce exhaust gases containing excess oxygen is provided by supported noble metal catalysts which have been treated by exposure to oxygen-inert gas mixtures to provide reduction of nitrogen oxides within a particular range of engine exhaust gas temperatures. Oxidation of the remaining reducing gases is also accomplished.
IPC 1-7
IPC 8 full level
B01D 53/94 (2006.01); B01J 37/14 (2006.01); F02B 3/06 (2006.01)
CPC (source: EP)
B01D 53/945 (2013.01); B01J 37/14 (2013.01); F02B 3/06 (2013.01); Y02T 10/12 (2013.01)
Citation (search report)
See references of WO 9509687A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
US 9411014 W 19940929; EP 94929929 A 19940929