Exhaust fume desulfurization process

Details Exhaust fume desulfurization process Exhaust fume desulfurization process

1984-05-02

1985-08-06

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423244, 423555, B01D 5334

Patent

active

045335311

ABSTRACT:
An exhaust fume desulfurization process is disclosed which comprises the steps of contacting an off-gas containing SO.sub.2 with a slurry containing calcium and manganese compounds, introducing a gas containing oxygen into the slurry, detecting the amount of the absorption of oxygen by the slurry, and regulating the amount of manganese present in the slurry based upon the amount of oxygen absorbed by the slurry. The desulfurization rate is correspondingly adjusted and the desulfurized gas product is recovered.

REFERENCES:
patent: 3904742 (1975-09-01), Akimoto
patent: 3920794 (1975-11-01), La Mantia et al.
patent: 4420465 (1983-12-01), Shinoda et al.

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