Monoethanolamine process for sulfur removal from circulating oil

Details Monoethanolamine process for sulfur removal from circulating oil Monoethanolamine process for sulfur removal from circulating oil

1976-02-20

1977-07-05

Novosad, Stephen J.

Wells

Processes

166265, 166267, 166312, 423228, 423229, E21B 4300, B01D 5334

Patent

active

040334104

ABSTRACT:
Circulating oil used for removal of sulfur in sour gas wells is contacted with an aqueous solution of an organic amine and allowed to separate into an oil phase and an aqueous amine phase containing the sulfur. The oil is then returned to circulation to the gas well and the aqueous amine phase is removed for regeneration which is accomplished by precipitating the sulfur with CO.sub.2 and stripping out the CO.sub.2 from the aqueous amine solution with heat and/or vacuum.

REFERENCES:
patent: 2176441 (1939-10-01), Ulrich et al.
patent: 2238201 (1941-04-01), Wilson et al.
patent: 2613132 (1952-10-01), Hutchinson
patent: 2688368 (1954-09-01), Rodgers et al.
patent: 2890931 (1959-06-01), McCreary
patent: 3228874 (1966-01-01), Morgan
patent: 3393733 (1968-07-01), Kuo et al.
patent: 3744565 (1973-07-01), Brown
patent: 3826811 (1974-07-01), Hakka

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