PLATINUM-CONTAINING THREE-WAY CATALYST FOR CLOSE-COUPLED ENGINE APPLICATION

PLATINUM-CONTAINING THREE-WAY CATALYST FOR CLOSE-COUPLED ENGINE APPLICATION

The present invention relates to three-way conversion catalysts (TWC) for the treatment of an exhaust gas stream comprising nitrogen oxides (NOx), carbon monoxide (CO), and hydrcarbons (HC), comprising platinum group metal (PGM), a refractory metal oxide support, and a carrier characterized in that...

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Bibliographische Detailangaben
Hauptverfasser: SIEMUND, Stephan, SCHMITZ, Thomas, DUMBUYA, Karifala, JI, Chunxin, WALTZ, Florian
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:The present invention relates to three-way conversion catalysts (TWC) for the treatment of an exhaust gas stream comprising nitrogen oxides (NOx), carbon monoxide (CO), and hydrcarbons (HC), comprising platinum group metal (PGM), a refractory metal oxide support, and a carrier characterized in that the platinum group metal (PGM) comprises platinum, palladium and rhodium, as well as methods and uses thereof.