Process for removing gaseous impurities from a gaseous mixture c

Details Process for removing gaseous impurities from a gaseous mixture c Process for removing gaseous impurities from a gaseous mixture c

1977-07-13

1979-03-27

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423223, 423226, 423229, 423232, 423236, 423242, 423243, B01D 5334

Patent

active

041465695

ABSTRACT:
Process for removing gaseous impurities such as CO.sub.2, H.sub.2 S, HCN and SO.sub.2 from a gaseous mixture containing the same, comprising an absorption step in which the gaseous impurities are removed by a scrubbing solution, and a regeneration step in which the exhausted solution is submitted to stripping to remove the inpurities. The regenerated solution is treated with a flow of inert gases to improve the degree of regeneration and extract heat from said solution. The flow of inert gases, containing steam and desorbed impurities, is further enriched in steam supplied from the exterior and the resulting mixture is used as stripping means in the regeneration step.

REFERENCES:
patent: 2134507 (1938-10-01), Cooke
patent: 3307844 (1962-06-01), Giammarco
patent: 3725529 (1973-04-01), Giammarco et al.
patent: 3962404 (1976-06-01), Giammarco et al.

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