SYSTEM AND METHOD OF RECOVERING OXIDATION CATALYST PERFORMANCE
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United States of America Patent
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Mar 3, 2016
app pub date -
Aug 29, 2014
filing date -
Aug 29, 2014
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Abstract
A system and method are disclosed for regenerating an oxidation catalyst used in an aftertreatment system of a multifuel internal combustion engine. According to at least one aspect of the present disclosure, recirculated exhaust gas is employed to enable recovery periods in which the engine generates oxygen-depleted exhaust to desulfate and deoxidize the oxidation catalyst. In certain embodiments, the system may include an exhaust gas recirculation system with a cooler and regulation valve to introduce exhaust gas into the engine.
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