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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Format: | Patent |
Sprache: | eng ; por |
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