Method for controlling a concentration of slurry in wet flue gas

Details Method for controlling a concentration of slurry in wet flue gas Method for controlling a concentration of slurry in wet flue gas

1984-08-23

1986-10-21

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423166, C01B 1700, C01F 100, C01F 540, C01F 1146

Patent

active

046184821

ABSTRACT:
A method for controlling the concentration of a slurry in an absorption tower in which a flue gas comprising SO.sub.2 is brought into contact with a slurry containing suspended Ca compounds therein to absorb the SO.sub.2 with the compounds. The method comprises withdrawing the slurry from the absorption tower in such a way that the slurry is divided into at least two groups with different concentrations, one group being a slurry having a higher concentration of the Ca compound, the other group being a slurry having a lower concentration of the Ca compound, and regulating rates of the slurries being withdrawn from the absorption tower whereby the concentration of the Ca compound in the slurry being contacted with the flue gas is controlled.

REFERENCES:
patent: 2090142 (1937-08-01), Nonhebel et al.
patent: 2090143 (1937-08-01), Nonhebel et al.
patent: 3808321 (1974-04-01), Fukui et al.

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