Catalyst-coated expanded metal foil substrate for an exhaust gas reactor

Patent · Tue Mar 14 04:00:00 EST 1978

OSTI ID:5006938

Fedor, R J; Ogden, C S

A system for reducing NO/sub x/ gases found in the exhaust stream of the internal combustion engine is described which includes an internal combustion engine having associated therewith a means for supplying fuel and oxygen to the engine, a manifold system for directing or channeling the exhaust gases from the engine, and a NO/sub x/ reducing catalyst assembly communicating with the manifold which includes a housing having a NO/sub x/ reducing catalytic structure of apertured thin metal foil positioned in it. In addition, an article composed of a catalytic material for reducing the oxides of nitrogen in exhaust gases from an internal combustion engine is also provided. The article includes a self-supporting catalytic structure in the form of an apertured, thin metal foil having a ratio of low mass to high surface area. In its preferred form, the foil is an expanded metal foil and is formed by tightly winding the foil into a plural layer helical coil.

• Assignee: Gould Inc.
• Patent Number(s): US 4078898
• OSTI ID: 5006938
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330701* -- Emission Control-- Nitrogen Oxides
AIR POLLUTION CONTROL
CATALYTIC CONVERTERS
CHALCOGENIDES
CONFIGURATION
CONTAINERS
DESIGN
ENGINES
EQUIPMENT
EXHAUST GASES
FOILS
GASEOUS WASTES
HELICAL CONFIGURATION
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SUBSTRATES
WASTES