Gas processing method for catalytically oxidising carbon...

Details Gas processing method for catalytically oxidising carbon... Gas processing method for catalytically oxidising carbon...

B - Operations, Transporting

01

D

B01D 53/94 (2006.01)

Patent

CA 2611126

The invention relates to a gas processing method, in particular the exhaust gas of an internal combustion engine, for catalytically oxidising a carbon monoxide and hydrocarbons contained therein into an oxygen-rich medium, wherein said method consists in using a compound based on an oxidation catalyst metal such as a platinum and a silica-containing zirconia in the form of a catalyst. The inventive method is particularly suitable for processing exhaust gases of a diesel engine or a petrol lean mixture operating engine.

L'invention concerne un procédé de traitement de gaz, notamment de gaz d'échappement d'un moteur à combustion interne, pour l'oxydation catalytique du monoxyde de carbone et des hydrocarbures qui y sont contenus, en milieu riche en oxygène, qui est caractérisé en ce qu'on utilise comme catalyseur une composition à base d'un métal catalyseur d'oxydation, comme le platine, et d'une zircone comprenant de la silice. Le procédé s'applique tout particulièrement au traitement de gaz d'échappement de moteur de type diesel ou de type essence fonctionnant en mélange pauvre.

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