Combustor for low-level NO.sub.x and CO emissions

Details Combustor for low-level NO.sub.x and CO emissions Combustor for low-level NO.sub.x and CO emissions

1976-04-23

1978-05-09

Croyle, Carlton R.

Power plants

Combustion products used as motive fluid

With variable oxidizer control

60 3951R, 60 3965, 431352, F02C 300, F02C 708

Patent

active

040879631

ABSTRACT:
New combustors, and methods of operating same, which produce lower emissions, particularly lower emissions of nitrogen oxides and CO. Means and methods are provided for supplying separate streams of air to primary and secondary combustion regions of a combustor, and expanding combustion products when passing same from said primary combustion region to said secondary combustion region. In preferred embodiments, unheated air can be used in said primary combustion region, and/or a second stream of air mixed with said combustion products during said expansion thereof.

REFERENCES:
patent: 2525206 (1950-10-01), Clarke
patent: 2651514 (1953-09-01), Sherman
patent: 2659201 (1953-11-01), Krejci
patent: 2669090 (1954-02-01), Jackson
patent: 3057158 (1962-10-01), Miller
patent: 3099134 (1963-07-01), Calder et al.
patent: 3826078 (1974-07-01), Quigg

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