Diesel oxidation catalyst

Details Diesel oxidation catalyst Diesel oxidation catalyst

2006-07-18

2006-07-18

Johnson, Christina (Department: 1725)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

C423S212000, C423S213700, C423S239100, C423S239200

Reexamination Certificate

active

07078004

ABSTRACT:
The present invention relates to a method and article for treating a diesel engine exhaust stream. The stream is contacted with an upstream catalytic composition having a cerium component and/or a zeolite component to reduce the quantity and amount of the particulate matter in the exhaust stream. The stream passes from the upstream catalytic composition to a particulate filter located downstream from the upstream catalytic composition.

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