Desulfurization of flue gas from multiple boilers

Details Desulfurization of flue gas from multiple boilers Desulfurization of flue gas from multiple boilers

1985-03-22

1986-07-29

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423242, 423243, 110343, 110345, C01B 1700, B01J 800

Patent

active

046030379

ABSTRACT:
Flue gases from two or more boilers are treated for reduction of their sulfur dioxide content by injecting as sorbent fine limestone or dolomite into one of the boilers, recovering a mixture of spent and calcined sorbent from the resulting flue gas, hydrating the resulting mixture to provide a dry slaked sorbent, and adding the dry slaked sorbent to sulfur-containing flue gas from a second boiler at a temperature of about 120.degree. to 230.degree. C.

REFERENCES:
patent: 3411864 (1968-11-01), Pallinger
patent: 3520649 (1970-07-01), Tomany et al.
patent: 3632306 (1972-01-01), Villiers-Fisher
patent: 4309393 (1982-01-01), Nguyen
patent: 4397742 (1983-08-01), Minnick
patent: 4454102 (1984-06-01), Lindau et al.
patent: 4533532 (1985-08-01), Gebhard et al.

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