Nitrogen oxide control using internally recirculated flue gas
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United States of America Patent
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May 31, 1994
Issued Date -
N/A
app pub date -
May 18, 1993
filing date -
Oct 19, 1989
priority date (Note) -
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Abstract
An improved process and apparatus for reducing NO.sub.x content of flue gas effluent from a furnace, the improvement comprising a burner assembly having a burner and flue gas recirculating system for collecting and passing internally recirculating flue gas into a combustion zone for reaction with a combustion flame. The burner preferably has a plurality of fuel dispensing nozzles peripherally disposed about the combustion zone to aspirate collected internally recirculating flue gas into the combustion zone, and has a plurality of fluid driven eductors to drive further amounts of collected internally recirculating flue gas into the combustion zone.
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