Method and apparatus for heating a furnace
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United States of America Patent
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Jan 6, 2004
Grant Date -
N/A
app pub date -
Jul 18, 2001
filing date -
Jul 18, 2001
priority date (Note) -
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Abstract
An improved process for heating furnaces using a burner design that produces very low level of undesirable nitrogen oxides is provided. The process recirculates a large volume of furnaces gases back to the burner where it is mixed with fuel gas in a plurality of recirculation ports prior to combusting with air in a primary combustion zone. Dispersion of the fuel gas in the recirculated furnace gases is believed to result in lower peak flame temperatures and therefore minimizing the formation of the pollutants, such as nitrogen oxides.
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