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Reduction of nitrogen- and carbon-based pollutants

Patent ·
OSTI ID:6730499

This patent describes a process for educing the concentration of nitrogen oxides in an oxygen-rich effluent from the combustion of a carbonaceous fuel. It comprises: injecting a solution comprising at least one additive compound selected from the group consisting of guanidine, guanidine carbonate, biguanide, guanylurea sulfate, melamine, dicyandiamide, biuret, 1,1{prime}-azobisformamide, methylol urea, methylol urea-urea condensation product, dimethylol urea, methyl urea, and dimethyl urea, at a concentration and a temperature effective to achieve reduction in nitrogen oxide levels in the effluent.

Assignee:
Fuel Tech, Inc., Stamford, CT (USA)
Patent Number(s):
A; US 4927612
Application Number:
PPN: US 7-201546A
OSTI ID:
6730499
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
014000* -- Coal
Lignite
& Peat-- Combustion
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ADDITIVES
AIR POLLUTION ABATEMENT
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CHALCOGENIDES
COAL
ENERGY SOURCES
FOSSIL FUELS
FUEL ADDITIVES
FUELS
MATERIALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT