Apparatus for carrying out extractions in subterranean well

Details Apparatus for carrying out extractions in subterranean well Apparatus for carrying out extractions in subterranean well

1989-03-06

1990-05-29

Hruskoci, Peter

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Discharge of treated material

55297, 210112, 210170, 210177, 210414, 210511, 422208, 422260, 422281, 196 1452, B01D 1104

Patent

active

049293486

ABSTRACT:
The present invention relates generally to improvements in processes and apparatus for effecting solvent extractions using liquefied gas or gases in the supercritical state as the solvents and specifically to continuous processes for carrying out such extractions at high pressures. Further, the present invention relates to an apparatus which is a long vertical cylinder of relatively small diameter, wherein the solvent gas and the material to be extracted are continuously circulated through the long vertical reactor.

REFERENCES:
patent: 3449247 (1969-06-01), Bauer
patent: 3887008 (1975-06-01), Canfield
patent: 4027731 (1977-06-01), Smith et al.
patent: 4272383 (1981-06-01), McGrew
patent: 4328255 (1982-05-01), Roselius et al.
patent: 4406742 (1983-09-01), Dick
patent: 4564458 (1986-01-01), Burleson
patent: 4810373 (1989-03-01), Rice

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