Oxygen-enriched co-firing of secondary fuels in slagging cyclone combustors
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United States of America Patent
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Nov 29, 2005
Grant Date -
Feb 24, 2005
app pub date -
Aug 21, 2003
filing date -
Aug 21, 2003
priority date (Note) -
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Abstract
A method for operating a cyclone combustor having first and second burners in communication with a barrel includes: feeding a stream of a primary fuel and a primary oxidant having a first oxygen concentration into the first burner; feeding a stream of a secondary fuel and a secondary oxidant having a second oxygen concentration greater than or equal to the first oxygen concentration into the second burner; combusting at least a portion of the primary fuel with at least a portion of the primary oxidant in the barrel of the cyclone combustor, thereby forming a plurality of primary products of combustion in the barrel; and combusting at least a portion of the secondary fuel with at least a portion of the secondary oxidant, thereby forming a plurality of secondary products of combustion and a secondary flame, the secondary flame generating a supplemental radiant heat in the barrel.
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