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Catalyst for purifying exhaust gases

Patent ·
OSTI ID:7274080
; ; ;
A catalyst for removing nitrogen oxides, carbon monoxide, and hydrocarbons in exhaust gases is described. The catalyst is prepared by supporting copper and nickel on a carrier and then further supporting at least two components selected from the group consisting of iridium, rhodium, and ruthenium. The atomic weight ratio of copper to nickel is 0.2 to 5, the atomic weight ratio of the sum of copper and nickel to the sum of at least two components selected from the group consisting of iridium, rhodium, and ruthenium is 10 to 100,000, and the total weight of copper and nickel is 10 to 200 g per liter of the catalyst.
Assignee:
Nippen Shokubai Kogaku Kogyo Co. Ltd.
Patent Number(s):
US 3953363
OSTI ID:
7274080
Country of Publication:
United States
Language:
English

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Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330701* -- Emission Control-- Nitrogen Oxides
330702 -- Emission Control-- Carbon Monoxide
330704 -- Emission Control-- Hydrocarbons
AUTOMOBILES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC CONVERTERS
CHALCOGENIDES
CHEMICAL COMPOSITION
COPPER
ELEMENTS
EQUIPMENT
HYDROCARBONS
IRIDIUM
METALS
NICKEL
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
POLLUTION CONTROL EQUIPMENT
REFRACTORY METALS
RHODIUM
RUTHENIUM
TRANSITION ELEMENTS
VEHICLES