Oil extraction process and apparatus therefor

Details Oil extraction process and apparatus therefor Oil extraction process and apparatus therefor

2006-02-21

2006-02-21

Carr, Deborah D. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Fatty compounds having an acid moiety which contains the...

C554S009000, C554S012000, C261S076000

Reexamination Certificate

active

07002029

ABSTRACT:
A process for solvent extraction of oils, in an extraction chamber, comprises the formation of a solvent mist with significant adiabatic cooling, whereby a pressure difference between the solvent inlet and outlet of the extraction chamber drives the solvent mist through the raw oil bearing. The solvent is fed to the extraction chamber at pressures exceeding atmospheric pressure, and the outlet of the extraction chamber is subject to a partial vacuum. An apparatus for solvent extraction comprises an extraction chamber for receiving oil bearing raw material therein, said extraction chamber comprising a solvent spray injection system connected via an inlet to a high pressure solvent feed circuit portion, said extraction chamber further connected via an outlet to a low pressure circuit portion connected to a gas recovery vacuum pump system.

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patent: 5980964 (1999-11-01), Walters et al.
patent: 6225483 (2001-05-01), Franke
patent: 6248910 (2001-06-01), Franke
patent: 0812903 (1997-12-01), None

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