Low NOX combustion process

Details Low NOX combustion process Low NOX combustion process

1989-03-03

1990-08-28

Yuen, Henry C.

Furnaces

With exhaust gas treatment means

Afterburning means

110213, 110214, 60 3906, F23B 500

Patent

active

049515799

ABSTRACT:
A process for low NOX combustion which involves combusting an oxygen-containing combustible gas stream having fuel material in excess of the oxygen in the combustible gas stream, whereby the combustible gas stream is combusted in a reducing atmosphere to produce a heated oxygen-depleted gaseous stream, converting at least a portion of the heat in the oxygen-depleted depleted stream into steam, adding air to the oxygen-depleted stream to produce a stoichiometric excess of oxygen in the resultant stream relative to fuel material present in the resultant stream, passing the resultant stream over the oxidizing catalyst to produce an oxidized gaseous stream, optionally removing heat from the oxidized stream, and venting the resultant cooled stream. A system for carrying out the foregoing process is also provided.

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patent: 3996862 (1976-12-01), Besik et al.
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patent: 4038032 (1977-07-01), Brewer et al.
patent: 4213403 (1980-07-01), Gomori
patent: 4458662 (1984-07-01), Barnett
patent: 4475472 (1984-10-01), Adrian et al.
patent: 4483258 (1984-11-01), John et al.
patent: 4784069 (1988-01-01), Stark
patent: 4811555 (1989-03-01), Bell

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