Method of removing sulphur oxides from flue gases
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United States of America Patent
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Jul 23, 1991
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N/A
app pub date -
Nov 2, 1988
filing date -
Nov 4, 1987
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Expired
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Abstract
A method of removing sulphur oxides from flue gases, in which method lime such as calcium carbonate is fed into a separate reactor space positioned in a boiler. In the reactor space the lime is converted into calcium oxide and carbon dioxide under the influence of the temperature prevailing in the furnace of the boiler. Pressurized air causes the calcinating lime and the obtained calcium oxide to flow through the tubular space, whereby at the other end of the space substantially all lime has been converted into oxide and is fed therefrom into the boiler among its flow of flue gases for the actual desulphuration reaction.
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