Method and apparatus for suppressing NOx formation in regenerati

Details Method and apparatus for suppressing NOx formation in regenerati Method and apparatus for suppressing NOx formation in regenerati

1988-05-25

1989-05-09

Green, Randall L.

Combustion

Process of combustion or burner operation

Heating feed

431181, 431215, 432 28, 432180, F23D 1144, F27D 1700

Patent

active

048284831

ABSTRACT:
A method and apparatus for repressing NOx formation in twinned regenerative burner pairs includes inducing a stream of hot flue gas, preferably containing enriched products of combustion, from the main hot flue gas exhaust stream and vitiating the preheated combustion air with the hot flue gas in the firing burner. An interconnecting duct communicating with the twinned burner pair includes a coaxial gas nozzle for injecting a high kinetic energy gas stream into the exhausting hot flue gas to induce a portion of the hot flue gas into the interconnecting duct to pass the hot flue gas to the firing burner for vitiation purposes.

REFERENCES:
patent: 3994665 (1976-11-01), Young
patent: 4522588 (1985-06-01), Todd et al.
patent: 4740154 (1988-04-01), Cantoni

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