Method for desulfurizing exhaust gas
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United States of America Patent
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Aug 6, 2002
Grant Date -
N/A
app pub date -
Jun 20, 2000
filing date -
Jun 22, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to the improvement of a replenishment method of a magnesium-based compound and to the improvement of a double decomposition method, which can be used in a magnesium hydroxide desulfurization method. In the improved replenishment method, the magnesium-based compound is supplemented with water and the ratio of Mg/H.sub.2 O is adjusted to the total Mg/H.sub.2 O in the desulfurization system. In the improved double decomposition method, a tank for use is provided with an inner cylinder which partitions the tank into an inner part and an outer part, but does not reach the bottom of the tank, and a part of the slurry drawn through the bottom of the tank is fed to the outer upper position in the tank.
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