Combustion – Process of combustion or burner operation – Flame shaping – or distributing components in combustion zone
Patent
1995-06-26
1998-01-20
Price, Carl D.
Combustion
Process of combustion or burner operation
Flame shaping, or distributing components in combustion zone
431115, 431 8, 431348, 431187, F23C 900
Patent
active
057095418
ABSTRACT:
A method and apparatus for reducing NO.sub.x emissions in a gas burner in which the burner includes a burner supply for supplying fuel gas and primary air to the furnace and projecting the fuel gas into the furnace, a secondary air supply for supplying secondary air to the burner, and a recirculating device for mixing the secondary air with the spent gases inside the furnace, which is then recirculated and combusted to reduce NO.sub.x gases. The method of the invention includes the steps of supplying fuel gas and primary air to the furnace, projecting the fuel gas into the furnace, combusting the fuel gas and primary gas to produce spent gases, supplying secondary air to the furnace, mixing the secondary air with the spent gases inside the furnace to produce diluted air, and recirculating and combusting the diluted air with the fuel gas and primary air to reduce NO.sub.x emissions.
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Gensler Wayne C.
van Eerden John
Miller Austin R.
Price Carl D.
Selas Corporation of America
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