Desulfurizing method for exhaust gas from combustor

Details Desulfurizing method for exhaust gas from combustor Desulfurizing method for exhaust gas from combustor

1990-05-09

1991-12-24

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

C01B 1700

Patent

active

050750852

ABSTRACT:
A method and equipment for desulfurizing exhaust gas from a combustor in which the exhaust gas containing SO.sub.2 from the combustor is brought into contact with SO.sub.2 absorbent to remove SO.sub.2 and is blown down out of the system; on the other hand, the SO.sub.2 absorbent absorbed SO.sub.2 is brought into contact with air to desorb SO.sub.2 and the air containing the desorbed SO.sub.2 is supplied to the combustor as air for combustion to burn to raise the SO.sub.2 concentration in the exhaust gas from the combustor; and the exhaust gas not undergone contact with the absorbent or a part of the air undergone contact with the SO.sub.2 absorbent are taken out of the system.

REFERENCES:
patent: 3556722 (1971-01-01), Owaki
patent: 3840638 (1974-10-01), Morita et al.
patent: 3906078 (1975-09-01), Hausberg et al.

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