Method and apparatus for decreasing nitrogen oxides and unburnt

Details Method and apparatus for decreasing nitrogen oxides and unburnt Method and apparatus for decreasing nitrogen oxides and unburnt

1977-06-06

1979-03-20

Favors, Edward G.

Combustion

Process of combustion or burner operation

Heating feed

431 8, 431215, F23D 1144

Patent

active

041451783

ABSTRACT:
Fuel is burned in two chambers, the first with excessive air to produce combustion gases containing oxygen and the second using cooled combustion gases from the first to constitute the oxidizing medium. Preferably the proportions of fuel in the two chambers are equal and the combustion gases are cooled to about 800.degree. C.

REFERENCES:
patent: 2968288 (1961-01-01), Zoschak et al.
patent: 3048131 (1962-08-01), Hardgrove
patent: 3865084 (1975-02-01), DePoister
patent: 3948223 (1976-04-01), Benson

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