LAYERED CATALYSTS FOR GASOLINE ENGINE EXHAUST
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Jul 6, 2017
app pub date -
Dec 23, 2016
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Dec 31, 2015
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Abstract
The present invention relates to coated substrates useful in catalytic converters. The coated substrates can have two washcoat layers, and in some embodiments, the first washcoat layer is divided into two zones. The substrates can be used in catalytic converters and emission control systems for treatment of exhaust gases from gasoline engines.
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