Wet type flue gas desulfurization apparatus

Details Wet type flue gas desulfurization apparatus Wet type flue gas desulfurization apparatus

1995-05-16

1997-02-25

Bhat, Nina

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

422213, 422215, 422217, 422231, 42324308, 42324309, 42324311, B01D 4700, C01B 1722

Patent

active

056055528

ABSTRACT:
A wet type flue gas desulfurization apparatus in which desulfurization of flue gas is carried out through gas/liquid phase contact of flue gas with an absorbent slurry. More particularly, disclosed in a combined absorption tower comprising an absorbent slurry liquid tank, a thickening tank serving for concentration by settling of a reaction product slurry formed through the reaction of the absorbent and SO.sub.2 present in flue gas, an absorption section situated above said liquid tank for the gas/liquid contact of flue gas and the absorbent slurry as well as for carrying out the desulfurization reaction, and a stack section situated above said absorption section serving for the dispersion of the treated flue gas into the atmosphere, wherein the absorption section is provided with nozzles for upward spraying of the absorbent slurry, and flue gas introduced at the bottom of said absorption section and absorbent slurry sprayed through the nozzles are subjected to gas/liquid contact, and a unreacted portion of the absorbent slurry and a reaction product slurry descend into said liquid tank, and the reaction product slurry from said liquid a tank is introduced into said thickening tank.

REFERENCES:
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patent: 4618482 (1986-10-01), Shinoda et al.
patent: 4632810 (1986-12-01), Shinoda et al.
patent: 4696805 (1987-09-01), Shinoda et al.
patent: 5034025 (1991-07-01), Ukawa et al.
patent: 5246678 (1993-09-01), Ochi et al.
patent: 5266286 (1993-11-01), Ukawa et al.

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