Controlling concentration of chemical treatment for flue gas red

Details Controlling concentration of chemical treatment for flue gas red Controlling concentration of chemical treatment for flue gas red

1992-11-23

1994-01-11

Favors, Edward G.

Furnaces

Process

Treating fuel constituent or combustion product

110341, 431 2, 422 3, 422168, 423235, F23J 1500

Patent

active

052771350

ABSTRACT:
In a furnace (boiler) installation where oxides of nitrogen are to be reduced to elemental nitrogen by treatment with a reactant such as a solution of urea, the desired amount of reactant (dependent on furnace specifics) is determined by comparing the fluorescent light intensity of a sample of the treating solution to the fluorescent light intensity of a calibration standard representing the desired amount of reactant concentration; in the case of non-comparison the concentration of reactant in the treating solution is altered until the intensities are substantially identical.

REFERENCES:
patent: 4793268 (1988-12-01), Kukin et al.
patent: 5024171 (1991-06-01), Krigmont et al.
patent: 5171450 (1992-12-01), Hoots

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