Method in a soda recovery boiler, and a soda recovery boiler
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United States of America Patent
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Aug 26, 2003
Grant Date -
Dec 19, 2002
app pub date -
May 2, 2002
filing date -
May 8, 2001
priority date (Note) -
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Abstract
In a soda recovery boiler, flue gases are led through a so-called economizer (3) to recover heat from flue gases. The flue gases are cooled in the last stage (3b) of the economizer (3) with a circulation water cooler (4) for flue gases, separate from the supply water system of the boiler. The circulation water cooler (4) for flue gases is used for preheating combustion air.
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