FIELD: technological processes.
SUBSTANCE: invention relates to the field of exhaust gas cleaning. Zoned catalytic composite for exhaust flow of internal combustion engine includes monolithic carrier consisting of multiple longitudinal channels. Composite comprises zone, which starts from one end of carrier and passes along axis along lengthwise channels so that zone has flat profile. Zone includes a catalytic material which acts to convert and/or trap one or more components in the exhaust flow. Length of the zone from one end of the carrier changes in range from 0 to 15 % of the length of the entire carrier from the channel to the channel. Methods of making and using a catalytic composite are also provided.
EFFECT: disclosed are zoned catalyst composites.
14 cl, 7 dwg
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