Scrubbing and oxidation of hydrogen sulfide with removal of diss

Details Scrubbing and oxidation of hydrogen sulfide with removal of diss Scrubbing and oxidation of hydrogen sulfide with removal of diss

1983-11-14

1985-07-02

Thomas, Earl C.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423224, 423226, C01B 1705, B01D 5334

Patent

active

045267731

ABSTRACT:
In a continuous process for the removal of H.sub.2 S from a gaseous mixture involving: (a) simultaneous absorption and oxidation of H.sub.2 S to form elemental sulfur; (b) regeneration of the oxidizing agent, e.g., vanadate, by treating the used scrubbing liquid with air; and (c) recycling the regenerated scrubbing liquid to the scrubbing step, to avoid the formation of sulfates and thiosulfates, the dissolved oxygen is substantially prevented from appearing in the scrubbing solution before reuse.

REFERENCES:
patent: 2641527 (1953-06-01), Leutz
patent: 3642448 (1972-02-01), Beavow
patent: 4113553 (1978-09-01), Samuelson
patent: 4125597 (1978-11-01), Fleck
patent: 4243648 (1981-11-01), Fenton
patent: 4400361 (1983-08-01), Shafer
patent: 4434143 (1984-02-01), Weber
patent: 4434145 (1984-02-01), Weber
patent: 4434146 (1984-02-01), Weber
Brennstoffchemie, vol. 50, 1969, No. 4, pp. T24 and T25.
Kohl et al, "Gas Purification", 3rd Ed., 1979, Gulf Publishing Company, Houston, pp. 476-482.

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