Combustion method and apparatus for NOx reduction

Details Combustion method and apparatus for NOx reduction Combustion method and apparatus for NOx reduction

2005-04-05

2005-04-05

Yeung, James C. (Department: 3749)

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

C431S012000, C431S115000

Reexamination Certificate

active

06875009

ABSTRACT:
Combustion method and apparatus for NOxreduction and CO reduction which are capable of easily achieving super NOxreduction with the value of exhaust NOxunder 10 ppm. The combustion method for NOxreduction by controlling the temperature of combustion gas derived from a burner includes in combination the steps of suppressing combustion gas temperature by heat absorbers; suppressing the combustion gas temperature by recirculating burning-completed gas to a combustion-gas burning reaction zone; and suppressing the combustion gas temperature by adding water or steam to combustion-use air of the burner, whereby the temperature of the combustion gas derived from the burner is suppressed.

REFERENCES:
patent: 5201650 (1993-04-01), Johnson
patent: 5353748 (1994-10-01), Kayahara et al.
patent: 6029614 (2000-02-01), Kayahara et al.
patent: 6383461 (2002-05-01), Lang
patent: 6705855 (2004-03-01), Nagayama et al.

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