Method of decreasing nitrogen oxide emissions in a circulating fluidized bed combustion system
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United States of America Patent
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-
Jul 9, 2002
Grant Date -
Jun 21, 2001
app pub date -
Dec 19, 2000
filing date -
Dec 22, 1999
priority date (Note) -
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Abstract
In a combustion installation for burning a fuel, which installation includes a hearth operating as a circulating fluidized bed, and in which installation at least a fraction of the flow of solid particles resulting from the combustion of the fuel in the hearth is returned to the hearth via a heat exchanger operating as a fluidized bed, the method of decreasing nitrogen oxide emissions consisting in the heat exchanger being fed with a fluidization gas which is considerably poorer in oxygen than air.
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