Apparatus for desulfurization

Details Apparatus for desulfurization Apparatus for desulfurization

1989-09-25

1991-02-05

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422234, B01D 5314

Patent

active

049903152

ABSTRACT:
In the desulfurization of flue gas utilizing limestone as absorbent in a double loop system, in which the flue gas is introduced into a quenching zone for contact with a first slurry of the limestone, and thereafter passes to an absorbing zone for further contact with a second limestone slurry, the two slurries being supplied from a mixing zone into which water and limestone are charged, and in which air is introduced into the quenching zone to convert the calcium sulfite present in it to gypsum, air is also supplied to the mixing zone to convert calcium sulfite in it to gypsum, and limestone is directly added to the quenching zone.

REFERENCES:
patent: 4351804 (1982-09-01), Biedell et al.
patent: 4533522 (1985-08-01), Leimkuhler
patent: 4627965 (1986-12-01), Hegemann et al.
patent: 4632810 (1986-12-01), Schinoda et al.
patent: 4719088 (1988-01-01), Itoh et al.
patent: 4832936 (1989-05-01), Holter et al.
patent: 4842835 (1989-06-01), Dorr et al.
patent: 4853195 (1989-08-01), Lehto

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