Process of desulfurization

Details Process of desulfurization Process of desulfurization

1988-02-10

1989-10-24

Marcus, Michael S.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423555, 422170, 422234, C01B 1700

Patent

active

048760765

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: 2080779 (1937-05-01), Lessing
patent: 4009244 (1977-02-01), Atsukawa et al.
patent: 4351804 (1982-09-01), Biedell et al.
patent: 4487784 (1984-12-01), Kuroda et al.
patent: 4533522 (1985-08-01), Leimkuhler
patent: 4627965 (1986-12-01), Hegemann et al.
patent: 4632810 (1986-12-01), Shinoda et al.

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