Removal of hydrogen sulfide from sour water without loss of heav

Details Removal of hydrogen sulfide from sour water without loss of heav Removal of hydrogen sulfide from sour water without loss of heav

1992-08-24

1994-03-08

McCarthy, Neil M.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210721, 210763, 606412, 606413, 606415, 4235731, C02F 174

Patent

active

052924408

ABSTRACT:
A process for removal of dissolved H.sub.2 S from condensed geothermal steam that includes the steps of cooling and oxygenating the sour steam condensate by contacting the sour condensate with air in a cooling tower; collecting the oxygenated condensate in a cooling tower collection basin and initially adding a polyvalent metal chelate catalyst, e.g., iron chelate catalyst solution, to the sour condensate at a very low concentration, e.g., about 0.1 ppm to about 10 ppm, preferably about 0.5 ppm to about 1 ppm by weight, and periodically or continuously adding, to the solution, a chelating agent for the polyvalent metal to account for chelon degradation to maintain active polyvalent metal chelate solution at a concentration of about 0.1 ppm to about 10 ppm, preferably about 0.5 ppm to about 1 ppm by weight. The dissolved H.sub.2 S is removed, by oxidation to sulfur, without the addition of polyvalent metal, e.g., iron, to the solution, and without blowdown of the condensate circulated through the cooling tower.

REFERENCES:
patent: 4076621 (1978-02-01), Hardison
patent: 4363215 (1982-12-01), Sharp
patent: 4410432 (1983-10-01), Domahidy
patent: 4414817 (1983-11-01), Jernigan
patent: 4451442 (1984-05-01), Jeffrey et al.
patent: 4468929 (1984-09-01), Jernigan
patent: 4614644 (1986-09-01), Lampton, Jr. et al.
patent: 4629608 (1986-12-01), Lampton, Jr. et al.
patent: 4696802 (1987-09-01), Bedell
patent: 4784775 (1988-11-01), Hardison
patent: 4844162 (1989-07-01), Maassen et al.
patent: 4967559 (1990-11-01), Johnston
patent: 4968488 (1990-11-01), Spevack
patent: 5057292 (1991-10-01), Monticelli, Jr.

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