Method for increasing internal combustion engine exhaust gas catalyst durability
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United States of America Patent
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Issued Date -
Nov 7, 2002
app pub date -
May 3, 2001
filing date -
May 3, 2001
priority date (Note) -
Abandoned
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Abstract
Durability of emissions catalysts in vehicular and other emissions control systems is significantly increased by positioning, prior to the catalyst-laden catalytic converter, at least one poison trap consisting of a low back pressure structure having a coating which reacts with non-metal or amphoteric oxides to form non-volatile reaction products.
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