Wet scrubbing method and apparatus for removing sulfur oxides fr

Details Wet scrubbing method and apparatus for removing sulfur oxides fr Wet scrubbing method and apparatus for removing sulfur oxides fr

1994-06-09

1997-06-03

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

42324311, C01B 1722

Patent

active

056351496

ABSTRACT:
Sulfur oxides (SO.sub.x) are scrubbed from combustion effluents with aqueous limestone slurries with greater efficiency and with economies in capital and operating costs. In the preferred embodiment of a single-loop, open-tower countercurrent limestone wet scrubber, effluent flow rates are greatly increased while L/G values and reaction tank residence times are decreased. Improved entrainment eliminator design, novel nozzle placement and spacing, and the use of a hydrocyclone to separate and recycle smaller particles of limestone from the byproduct gypsum, facilitate these advantages. The limestone is reduced to very fine particles, e.g. about 8.mu. or less with more than 99% of the particle by weight less than 44.mu., and introduced into a scrubbing slurry which is contacted with SO.sub.x -laden effluent.

REFERENCES:
patent: 2090142 (1937-08-01), Nonhebel
patent: 2113198 (1938-04-01), Nonhebel
patent: 4250152 (1981-02-01), Biedell et al.
patent: 4325923 (1982-04-01), Bottom et al.
patent: 5215672 (1993-06-01), Rogers et al.
Hegemann and Kutemeyer, The Bischoff Flue Gas Desulfurization Process, EPA and EPRI First Combined FGD and Dry SO.sub.2 Control Symposium, Oct. 25-28, 1988.
Rader and Bakke, Incorporating Full-Scale Experience into Advanced Limestone Wet FGD Designs, IGCI Forum '91, Washington, D.C., Sep. 12, 1991 .

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