CATALYTIC ARTICLE FOR TREATING EXHAUST GAS
Provided is a catalytic article comprising (a) a flow through honeycomb substrate having channel walls; (b) a first NH 3 -SCR catalyst composition coated on and/or within the channel walls in a first zone; and (c) a second NH 3 -SCR catalyst composition coated on and/or within the channel walls in a...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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