ZONE COATED CATALYST TO SIMULTANEOUSLY REDUCE NOX AND UNREACTED AMMONIA

Provided is a catalyst article and an emissions treatment system and method for reducing NOx emissions in the exhaust stream produced from an internal combustion engine. The system has an injector for periodically metering ammonia or an ammonia precursor into an exhaust and a first substrate with a...

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Bibliographische Detailangaben
Hauptverfasser: JOSEPH ALLAN PATCHETT, JOSEPH CHARLES DETTLING
Format: Patent
Sprache:eng ; por
Schlagworte:
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