Catalyst for exhaust gas purification and system for exhaust...

Details Catalyst for exhaust gas purification and system for exhaust... Catalyst for exhaust gas purification and system for exhaust...

B - Operations, Transporting

01

J

B01J 23/58 (2006.01) B01D 53/94 (2006.01) B01J 23/54 (2006.01) B01J 37/02 (2006.01)

Patent

CA 2224959

A catalyst for exhaust gas purification is capable of purifying the hydrocarbons, nitrogen oxides and carbon monoxide present in the exhaust gas discharged from an internal combustion engine. The catalyst has a carrier and a catalyst layer containing at least one kind of noble metal, Ba and Cs, formed on the carrier. This catalyst for exhaust gas purification is improved in hydrocarbon purification ability for a low-temperature fuel-rich exhaust gas (such as exhaust gas emitted during cold start) of automobile.

Divulgation d'un catalyseur capable de purifier les hydrocarbures, les oxydes d'azote et le monoxyde de carbone présents dans les gaz d'échappement d'un moteur à combustion interne. Le catalyseur comporte un support solide recouvert d'une couche contenant au moins une sorte de métal noble, du Ba et du Cs. La capacité du catalyseur à purifier les hydrocarbures dans les gaz d'échappement est améliorée dans le cas des gaz d'échappement riches en combustible à basse température (comme les gaz d'échappement libérés pendant le démarrage à froid) d'une automobile.

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