Process for treating automotive exhaust gases using monolith washcoat having optimum pore structure
Patent
·
OSTI ID:5376389
This patent describes a process for treating automotive exhaust gases with a washcoated ceramic or metal monolith automotive exhaust catalyst. The washcoat on the catalyst has a thickness in the range of 30-80 microns, a total pore volume in the range of 0.60-1.80 cm/sup 3//g washcoat, a micropore volume in the range of 0.35-0.60 cm/sup 3//g washcoat, a micropore radium below 60 Angstrom units, and a surface area between 125-250 m/sup 2//g washcoat.
- Assignee:
- W.R. Grace and Co.-Conn., New York, NY
- Patent Number(s):
- US 4859433
- Application Number:
- PPN: US 7-198810A
- OSTI ID:
- 5376389
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION CONTROL
AUTOMOBILES
CATALYSTS
CATALYTIC CONVERTERS
CERAMICS
COATINGS
CONTROL
EMISSION
EQUIPMENT
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POROSITY
PURIFICATION
VEHICLES
WASTES
330700* -- Advanced Propulsion Systems-- Emission Control
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION CONTROL
AUTOMOBILES
CATALYSTS
CATALYTIC CONVERTERS
CERAMICS
COATINGS
CONTROL
EMISSION
EQUIPMENT
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POROSITY
PURIFICATION
VEHICLES
WASTES