Method for dry desulfurizing flue gases
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United States of America Patent
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Sep 16, 1997
Issued Date -
N/A
app pub date -
Sep 5, 1996
filing date -
Mar 31, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a method for dry desulfurizing flue gases from rotary cement kilns, for which additives suitable for binding SO.sub.2, such as quick lime and/or dry calcium hydroxide, are supplied to the kiln, the additive being introduced into a flue gas-carrying zone at the kiln head at a injection angle of 2.degree. to 12.degree. to the axis of the kiln and at an injection velocity of 20 to 80 m/sec.
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