Nox control for high nitric oxide concentration flows through combustion-driven reduction

Patent · Sun Jan 01 00:00:00 EST 1989

OSTI ID:867162

Yeh, James T ^[1]; Ekmann, James M ^[1]; Pennline, Henry W ^[1]; Drummond, Charles J ^[2]

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1. Bethel Park, PA
2. Churchill, PA

An improved method for removing nitrogen oxides from concentrated waste gas streams, in which nitrogen oxides are ignited with a carbonaceous material in the presence of substoichiometric quantities of a primary oxidant, such as air. Additionally, reductants may be ignited along with the nitrogen oxides, carbonaceous material and primary oxidant to achieve greater reduction of nitrogen oxides. A scrubber and regeneration system may also be included to generate a concentrated stream of nitrogen oxides from flue gases for reduction using this method.

• Research Organization: USDOE Pittsburgh Energy Technology Center (PETC), PA (United States)
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 4878442
• OSTI ID: 867162
• Country of Publication: United States
• Language: English

Related Subjects

nox
control
nitric
oxide
concentration
flows
combustion-driven
reduction
improved
method
removing
nitrogen
oxides
concentrated
waste
gas
streams
ignited
carbonaceous
material
presence
substoichiometric
quantities
primary
oxidant
air
additionally
reductants
achieve
scrubber
regeneration
included
generate
stream
flue
gases
concentrated waste
nitrogen oxide
stoichiometric quantities
waste gas
nitrogen oxides
improved method
gas stream
carbonaceous material
gas streams
flue gas
nitric oxide
removing nitrogen
flue gases
oxide concentration
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