Diesel oxidation catalyst
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United States of America Patent
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Jul 18, 2006
Issued Date -
N/A
app pub date -
Jan 10, 2003
filing date -
Jul 2, 1999
priority date (Note) -
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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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