Compact boiler having low NO.sub.x emissions

Details Compact boiler having low NO.sub.x emissions Compact boiler having low NO.sub.x emissions

1994-03-18

1995-12-05

Bennet, Henry A.

Liquid heaters and vaporizers

Heat transmitter

110345, 110347, 110234, 236 15E, 431 76, F22B 2306

Patent

active

054719577

ABSTRACT:
Method and apparatus for reducing the NOX levels in stack emissions of compact boilers and fluid heaters through selective injection of exhaust flue gases into the combustion process. Flue gas injection into the primary and secondary air of the burner along with flue gas injection directly into the combustion process is utilized. Injection of generated steam from a compact boiler, selectively injected into the combustion process is also provided.

REFERENCES:
patent: 5259342 (1993-11-01), Brady et al.
patent: 5333574 (1994-08-01), Brady et al.

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