Reduction of nitrogen- and carbon-based pollutants

Details Reduction of nitrogen- and carbon-based pollutants Reduction of nitrogen- and carbon-based pollutants

C - Chemistry, Metallurgy

01

B

23/353

C01B 21/00 (2006.01)

Patent

CA 1258159

REDUCTION OF NITROGEN- AND CARBON-BASED POLLUTANTS 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 solution comprising at least one additive compound selected from the group consisting of guanidine, guanidine carbonate, biguanide, guanylurea sulfate, melamine, dicyandiamide, calcium cyanamide, biuret, 1,1'-azobisformamide, methylol urea, methylol urea-urea condensation product, dimethylol urea, methyl urea, dimethyl urea, and hexamethylenetetramine is injected into an effluent at a temperature above 1300°F, and preferably above 1500°F. The concentration of the additive compound in solution, the temperature of the effluent at the point of injection, and the size of the droplets in the dispersion, are selected to provide a reduction in nitrogen oxides. When urea is employed in combination with hexamethylenetetramine, the effectiveness of the urea is enhanced, particularly at temperatures 1800°F and below.

519894

Affiliated with

Also associated with

Rating

Reduction of nitrogen- and carbon-based pollutants 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, 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 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1332284