Diesel oxidation catalyst composite with layer structure for carbon monoxide and hydrocarbon conversion

Provided is a catalyst composition, in particular a diesel oxidation catalyst, for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO). More particularly, the present invention is directed to a catalyst structure comprising at least t...

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Main Authors SIANI ATILIO, HOKE JEFFREY B, SUNG SHIANG, MUELLER-STACH W. TORSTEN, LI YUEJIN, ROTH STANLEY A, PUNKE ALFRED H, WEI XINYI, DEEBA MICHEL, NEUBAUER TORSTEN, GRUBERT GERD
Format Patent
LanguageEnglish
Published 25.02.2015
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:Provided is a catalyst composition, in particular a diesel oxidation catalyst, for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO). More particularly, the present invention is directed to a catalyst structure comprising at least two, specifically three distinct layers, at least one of which contains an oxygen storage component (OSC) that is present in a layer separate from the majority of the platinum group metal (PGM) components, such as palladium and platinum.
Bibliography:Application Number: CN201080011970