Process for dry desulfurization of flue gas

Details Process for dry desulfurization of flue gas Process for dry desulfurization of flue gas

1982-01-13

1984-01-24

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423569, 423574R, 502 56, B01J 800, C01B 1700, C01B 1702

Patent

active

044276427

ABSTRACT:
Sulfur oxides contained in the flue gas from coal-fired boiler are adsorbed by an adsorbent prepared by dry-distilling a portion of fuel coal, thereby producing semi-coke, and activating the semi-coke by steam, and then the sulfur oxides-adsorbed adsorbent is heated to desorb the adsorbed sulfur oxides at a high concentration. The desorbed sulfur oxides are passed through a bed of semi-coke before the activation to recover the sulfur oxides as elemental sulfur.

REFERENCES:
patent: 3502427 (1970-03-01), Johswich
patent: 3913253 (1975-10-01), Juntgen
patent: 4164555 (1979-08-01), Steiner
patent: 4219537 (1980-08-01), Steiner
Sulfur, Jul./Aug., 1975, No. 119, pp. 24-26 and 45.

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