Reduction of nitrogen- and carbon-based pollutants through the u

Details Reduction of nitrogen- and carbon-based pollutants through the u Reduction of nitrogen- and carbon-based pollutants through the u

1987-08-27

1991-02-12

Doll, John

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

C01B 2100

Patent

active

049922491

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.

REFERENCES:
patent: 4208386 (1980-06-01), Arand et al.
patent: 4325924 (1982-04-01), Arand et al.
patent: 4507269 (1985-03-01), Dean et al.
patent: 4624840 (1986-11-01), Dean et al.
patent: 4627965 (1986-12-01), Hegemann et al.
Chemical Engineers Handbook, 4th edition, Perry pp. 18-68.

Affiliated with

Also associated with

Rating

Reduction of nitrogen- and carbon-based pollutants through the u does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reduction of nitrogen- and carbon-based pollutants through the u, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduction of nitrogen- and carbon-based pollutants through the u will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-19435