Method for manufacturing a three-way catalyst

Method for manufacturing a three-way catalyst

The invention is a three-way catalyst, its method of manufacture, and use for treating exhaust gas generated by a gasoline internal combustion engine. The method comprises coating a substrate with mixed metal oxide particles in an amount of 10-30wt.% based on the weight of the substrate. The mixed m...

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Hauptverfasser: HUANG, RONGGUANG, LI, JUN, HURLEY, RONALD G
Format: Patent
Sprache:eng ; fre ; ger
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CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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creator HUANG, RONGGUANG
LI, JUN
HURLEY, RONALD G
description The invention is a three-way catalyst, its method of manufacture, and use for treating exhaust gas generated by a gasoline internal combustion engine. The method comprises coating a substrate with mixed metal oxide particles in an amount of 10-30wt.% based on the weight of the substrate. The mixed metal oxide comprises at least aluminium and rare earth metals of cerium and lanthanum. Precious metals are then deposited on the oxide coating and comprise at least one of platinum and palladium overcoated with rhodium. The total loading of precious metals is about 0,018-0,124g/l (5-35 g/ft ) of the substrate.
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subjects CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
title Method for manufacturing a three-way catalyst
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