Method for treating residue gases proceeding from sulphur removi

Details Method for treating residue gases proceeding from sulphur removi Method for treating residue gases proceeding from sulphur removi

1980-02-20

1981-12-29

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423220, 423229, B01D 5334

Patent

active

043082432

ABSTRACT:
This invention relates to a method for treating residue gases proceeding from units applying the Claus reaction for the removal of sulphur and having been subjected to a conversion of the sulphur compounds into sulphuretted hydrogen.
This method consists in that, prior to absorption of the sulphuretted hydrogen by a selective solvent in aqueous solution, the gases to be treated are cooled to a temperature so selected as to condense the water contained in the gases to form an aqueous effluent which is thereafter injected into the circuit of the selective solvent.

REFERENCES:
patent: 2638405 (1953-05-01), Frazier
patent: 3417572 (1968-12-01), Pryor
patent: 3453835 (1969-07-01), Hochgesand
patent: 3932582 (1976-01-01), Eickmeyer
patent: 4160810 (1979-07-01), Benson et al.
patent: 4198378 (1980-04-01), Giammarco et al.
Chemical Abstracts, vol. 89, p. 132, 1978, Reference 131727c.

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