Catalyst for purifying exhaust gases and method for producing same

Patent · Tue Nov 10 00:00:00 EST 1981

OSTI ID:5511733

Fujitani, Y; Kondoh, S; Muraki, H; Sobukawa, H; Tomita, M; Yokota, K

A catalyst is described for reducing nitrogen oxides, carbon monoxide and hydrocarbons, the noxious components in exhaust gases from internal combustion engines, etc., comprising: a porous carrier consisting essentially of zirconia and at least one oxide selected from the group consisting of cerium oxide, manganese oxide and iron oxide; and a metal as a catalyst ingredient supported thereon selected from the group consisting of platinum, palladium and mixtures thereof. A method for producing the aforesaid catalyst is described.

• Assignee: Toyota Chuo Kenkyusho K K (Japan)
• Patent Number(s): US 4299734
• OSTI ID: 5511733
• Resource Relation: Patent Priority Date: Priority date 23 May 1979, Japan; Other Information: PAT-APPL-151601
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
CATALYTIC CONVERTERS
DESIGN
INTERNAL COMBUSTION ENGINES
AIR POLLUTION CONTROL
CARBON MONOXIDE
CATALYSTS
CERIUM OXIDES
CHEMICAL COMPOSITION
EXHAUST GASES
HYDROCARBONS
IRON OXIDES
MANGANESE OXIDES
NITROGEN OXIDES
PALLADIUM
PLATINUM
PURIFICATION
ZIRCONIUM OXIDES
CARBON COMPOUNDS
CARBON OXIDES
CERIUM COMPOUNDS
CHALCOGENIDES
CONTROL
ELEMENTS
ENGINES
EQUIPMENT
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
IRON COMPOUNDS
MANGANESE COMPOUNDS
METALS
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
RARE EARTH COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WASTES
ZIRCONIUM COMPOUNDS
330700* - Advanced Propulsion Systems- Emission Control