Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1996-01-18
1997-09-02
Woo, Jay H.
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
552572, 55260, 55440, 95216, 95235, 96189, B01D 4700
Patent
active
056627211
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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ABB Environmental Systems, Div.of ABB Flakt, Inc.
Smith Duane S.
Woo Jay H.
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