Carbon dioxide hydrocarbons separation process utilizing liquid-

Details Carbon dioxide hydrocarbons separation process utilizing liquid- Carbon dioxide hydrocarbons separation process utilizing liquid-

1984-07-30

1985-10-15

Bashore, S. Leon

Refrigeration

Processes

Circulating external gas

62 20, 62 24, 62 28, 55 56, 203 43, 208311, F25J 300

Patent

active

045472092

ABSTRACT:
Carbon dioxide is cryogenically separated from methane and then is separated from the ethane by liquid extraction with water at high pressures of 500 to 2250 psia thus avoiding the CO.sub.2 --C.sub.2 H.sub.6 azeotrope problem. The process is particularly applicable to the recovery of high pressure pure carbon dioxide from the wellhead products of carbon dioxide flooding used in enhanced oil recovery. The high pressure pure carbon dioxide liquid is pumped for reinjection to the well.

REFERENCES:
patent: 3010286 (1961-11-01), Baker et al.
patent: 3977203 (1976-08-01), Hinton et al.
patent: 4311495 (1982-01-01), Styring, Jr.
patent: 4374657 (1983-02-01), Schendel et al.

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