Palladium containing catalyst for treatment of automotive exhaust
Patent
·
OSTI ID:6451029
This patent describes a method of treating an automotive exhaust. It comprises: contacting the exhaust with a catalyst comprising a metallic or ceramic honeycomb carrier having deposited thereon a layer of an alumina with a surface area from about 75 to about 200 m{sup 2}/g, the alumina having dispersed thereon lanthanum oxide present as crystallites of less than about 25 Angstroms, cerium oxide, the cerium oxide characterized in that at least 3% of the cerium in the cerium oxide crystal lattice is replaced by lanthanum, palladium oxide in the form of crystallites less than about 25 Angstroms in size and rhodium oxide.
- Assignee:
- Allied-Signal Inc., Morris County, NJ (USA)
- Patent Number(s):
- A; US 4960574
- Application Number:
- PPN: US s 7-384344
- OSTI ID:
- 6451029
- Country of Publication:
- United States
- Language:
- English
Similar Records
Catalyst for treatment of exhaust gases from internal combustion engines
High durability and exhaust catalyst with low hydrogen sulfide emissions
Lanthanum containing catalyst for treating automotive exhaust
Patent
·
Tue Apr 24 00:00:00 EDT 1990
·
OSTI ID:6828812
High durability and exhaust catalyst with low hydrogen sulfide emissions
Patent
·
Tue May 26 00:00:00 EDT 1992
·
OSTI ID:7116345
Lanthanum containing catalyst for treating automotive exhaust
Patent
·
Tue May 08 00:00:00 EDT 1990
·
OSTI ID:6744351
Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CATALYTIC CONVERTERS
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
EQUIPMENT
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PALLADIUM COMPOUNDS
PALLADIUM OXIDES
POLLUTION CONTROL EQUIPMENT
PURIFICATION
RARE EARTH COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
WASTES
330700* -- Advanced Propulsion Systems-- Emission Control
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CATALYTIC CONVERTERS
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
EQUIPMENT
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PALLADIUM COMPOUNDS
PALLADIUM OXIDES
POLLUTION CONTROL EQUIPMENT
PURIFICATION
RARE EARTH COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
WASTES