Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically
Patent
1990-09-21
1991-10-01
Bennett, Henry A.
Heating
Work chamber having heating means
Having means by which work is progressed or moved mechanically
432 11, 432 19, 432 28, 431 7, 431 10, F27D 300, F23C 600
Patent
active
050529218
ABSTRACT:
Nitrous oxide emissions are reduced in an industrial thermal process and system which operates a gas fired burner at substantially sub-stoichiometric conditions to produce products of combustion rich in combustibles and control flame temperatures at temperatures which do not exceed predetermined levels. Completion air at stoichiometric proportions is subsequently employed to burn the combustibles. Regenerative and recuperative means to cool gases after each partial combustion step are used to extract heat and use is in conventional heating processes. A novel regenerative heat exchange system is used to extract heat from the gases so that the gases never exceed a temperature whereat nitrous oxide formation tends to occur.
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Bennett Henry A.
Kilner Christopher B.
Southern California Gas Company
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