Process for treating automotive exhaust gases using monolith washcoat having optimum pore structure

Patent · Tue Aug 22 00:00:00 EDT 1989

OSTI ID:5376389

Pereira, C J; Kubsh, J E; Hegedon, L

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
• Resource Relation: Patent File Date: 25 May 1988
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
54 ENVIRONMENTAL SCIENCES
AUTOMOBILES
CATALYTIC CONVERTERS
AIR POLLUTION CONTROL
CATALYSTS
CERAMICS
COATINGS
EMISSION
EXHAUST GASES
POROSITY
PURIFICATION
CONTROL
EQUIPMENT
FLUIDS
GASEOUS WASTES
GASES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
VEHICLES
WASTES
330700* - Advanced Propulsion Systems- Emission Control
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)