Method and apparatus for reducing NOx production during air-oxyg

Details Method and apparatus for reducing NOx production during air-oxyg Method and apparatus for reducing NOx production during air-oxyg

1998-05-21

1999-02-16

Dority, Carroll B.

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

431 8, 431181, 431187, 239422, F23M 304

Patent

active

058713433

ABSTRACT:
Method and apparatus for reducing NOx production during air-oxygen-fuel combustion by providing a central core of fuel surrounded by a sheath of oxygen at a combustion end of an air-oxygen-fuel burner. Diametrically opposed air passages are provided on either side of the oxygen sheath to permit entrainment of furnace gases into a flame zone created by primary combustion of fuel and oxygen. Oxygen can be introduced into each air passage to enhance combustion with low NOx emissions.

REFERENCES:
patent: 4797087 (1989-01-01), Gitman
patent: 5217363 (1993-06-01), Brais et al.
patent: 5308239 (1994-05-01), Bazarian et al.
patent: 5454712 (1995-10-01), Yap
patent: 5611683 (1997-03-01), Baukal et al.

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