Method of reducing the content of nitrogen oxides in multiple bed composition boilers
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United States of America Patent
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Nov 8, 1988
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N/A
app pub date -
Jul 8, 1987
filing date -
Jul 8, 1986
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Expired
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Abstract
Method of supplying ammonia gas to boilers having at least two fluidized beds one above the other for reducing the content of nitrogen oxides in the flue gas wherein the ammonia gas is intermixed with secondary air or tertiary air before said air intermixed with flue gas from the lower fluidized bed is supplied to the upper fluidized bed or the upper fluidized beds, respectively, for fluidization equally distributed over the area of the bed or beds, respectively.
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