Reduction of nitrogen- and carbon-based pollutants through the use of urea solutions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 12, 1991
Issued Date -
N/A
app pub date -
Aug 27, 1987
filing date -
Oct 4, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a process for reducing nitrogen oxides in an effluent from the combustion of a carbonaceous fuel under oxygen-rich conditions which minimize the production of carbon-based pollutants. A dispersion of a dilute aqueous urea solution is injected into an effluent at a temperature above 2000.degree. F., and preferably above 2100.degree. F. The concentration of the urea in solution and the size of the droplets in the dispersion are selected to provide the reduction in nitrogen oxides. The solution will preferably contain at least 80% by weight solvent and contain droplets sized within the range of from 150 to 10,000 microns.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully