Methods of utilizing boiler blowdown for reducing NOx

The present invention provides improved methods of reducing NOx emissions in the flue gases produced by a steam boiler fired by a fluid fuel and combustion air burner and including a steam drum provided with make-up water from which produced steam and blowdown steam are withdrawn. In accordance with...

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Bibliographische Detailangaben
Hauptverfasser:	TSIRULNIKOV LEV M, GUARCO JOHN P, BARRIEAU ANDREW S
Format:	Patent
Sprache:	eng
Schlagworte:	AIR AIR SUPPLY BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES DRAUGHT-INDUCING HEATING LIGHTING MECHANICAL ENGINEERING METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS WEAPONS
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Beschreibung
Zusammenfassung:	The present invention provides improved methods of reducing NOx emissions in the flue gases produced by a steam boiler fired by a fluid fuel and combustion air burner and including a steam drum provided with make-up water from which produced steam and blowdown steam are withdrawn. In accordance with the invention at least a portion of the blowdown steam is combined with the fluid fuel or combustion air or both.