Oxidation process and catalyst for use therefor

Patent · Tue Oct 29 04:00:00 EST 1991

OSTI ID:5409713

Cordonna, Jr, G W; Becker, E R

This patent describes a process for the oxidative removal of CO and hydrocarbons from SO{sub x} containing waste gases. It comprises contacting the waste gas in an oxidizing atmosphere at a relatively low temperature below about 500{degrees} C. in the presence of an effective amount of a sulfur-resistant catalyst consisting essentially of a ceramic or metallic monolith which has a coating consisting essentially of at least one member of the group consisting of silica, zirconia, titania and zeolite and a mixture of platinum and rhodium or platinum and palladium deposited thereon, the coating having a surface area about 20 m{sup 2}/g to about 100 m{sup 2}/g, the total amount of platinum and rhodium or platinum and palladium comprising about 0.005 to about 2% by weight of the catalyst composition and gas hourly space velocity of the gas contacting the catalyst being about 10,000 to about 200,000 hr{sup {minus}1}.

• Assignee: Johnson Matthey, Inc., Valley Forge, PA (United States)
• Patent Number(s): A; US 5061464
• Application Number: PPN: US 7-539319
• OSTI ID: 5409713
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
DISPERSIONS
ELEMENTS
GASEOUS WASTES
HYDROCARBONS
MANAGEMENT
METALS
MINERALS
MIXTURES
ORGANIC COMPOUNDS
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
PROCESSING
REMOVAL
RHODIUM
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES