Solution removal of H.sub.2 S from gas streams

Details Solution removal of H.sub.2 S from gas streams Solution removal of H.sub.2 S from gas streams

1991-09-04

1992-03-03

Lewis, Michael

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423226, 4235766, C10L 310, C01B 1716, C01B 1705

Patent

active

050930940

ABSTRACT:
A process for the removal of H.sub.2 S from sour gaseous streams is disclosed in which the sour gaseous stream is contacted with a solution containing solubilized iron chelates of a specified organic acid or acids. The contacting is carried out in first and second contacting zones, the first being a gas-solution mixture formation zone and the second comprising a plurality of contacting sections adapted to provide reaction of the H.sub.2 S in the sour gaseous stream with the iron in the contacting solution without plugging due to deposition of sulfur.

REFERENCES:
patent: 3933993 (1976-01-01), Salemme
patent: 4009251 (1977-02-01), Meuly
patent: 4664902 (1987-05-01), Fong et al.
patent: 4758416 (1988-07-01), Fong et al.
patent: 4871520 (1989-10-01), Olson et al.

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