Entrainment separator for high velocity gases
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United States of America Patent
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-
Sep 2, 1997
Issued Date -
N/A
app pub date -
Jan 18, 1996
filing date -
Jun 9, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Sulfur oxides (SO.sub.x) are scrubbed from combustion effluents with aqueous limestone slurries with greater efficiency due to the use of an improved entrainment separator. In the preferred embodiment of a single-loop, counter-current limestone wet scrubber operating at bulk gas flow rates of greater than 4.5 meters per second, a vertical stream of flue gas is freed of a substantial portion of slurry droplets and diverted for effective mist removal by a well-drained, horizontal-flow mist eliminator. The entrainment separator is a single-pass device with individual blades aligned for effective operation with reduced droplet impingement on the upper walls (e.g., roof) of the scrubber and to permit periodic washing.
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