Process for the catalytic reduction of nitrogen oxides in gaseous mixtures

Patent · Tue May 19 00:00:00 EDT 1981

OSTI ID:6148097

Ginger, E A

A process for the reductive removal of a nitrogen oxide from a gaseous stream, particularly a stream containing oxygen, water, sulfur dioxide, nitrogen oxide and nitrogen, by contacting the stream with ammonia in the presence of a mixture of two catalysts. The first catalyst comprises copper or a copper compound, preferably copper sulfate supported on a porous carrier material. The second catalyst is a combination of metals or compounds thereof, preferably sulfates of vanadium and iron or tungsten and iron, also dispersed on a porous carrier material.

• Assignee: UOP Inc
• Patent Number(s): US 4268488
• OSTI ID: 6148097
• Resource Relation: Patent File Date: Filed date 10 May 1979
• Country of Publication: United States
• Language: English

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20 FOSSIL-FUELED POWER PLANTS
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DENITRIFICATION
FOSSIL-FUEL POWER PLANTS
NITROGEN OXIDES
AIR POLLUTION CONTROL
AMMONIA
CATALYSTS
CHROMIUM
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COPPER
COPPER SULFATES
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NITROGEN HYDRIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POWER PLANTS
REFRACTORY METALS
SULFATES
SULFUR COMPOUNDS
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TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
424000 - Engineering- Pollution Control Equipment- (1980-1989)