Entrainment separator for high velocity gases

Details Entrainment separator for high velocity gases Entrainment separator for high velocity gases

1994-06-09

1996-01-23

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

4232421, 42324308, 42324309, 95216, 95235, B01D 5350, B01D 5378

Patent

active

054863414

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.

REFERENCES:
Jones, McIntush, Lunden, Rhudy, Bowen, Mist Elimination System Design & Specification for FGD Systems, SO.sub.2 Control Symposium, Boston, Mass., Aug. 26, 1993.
Radar and Bakke, Incorporating Full-Scale Experience into Advanced Limestone Wet FGD Designs, IGCI Forum '91, Washington, D.C., Sep. 12, 1991.
Rosenberg and Koch, Report--Battelle's Stack Gas Emissions Control Coordination Center Group, Battelle Memorial Institute, Jul. 10, 1989.

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