Method for recovering oil from an oil-bearing solid material

A method and apparatus for continuously removing oil from oil-bearing solids such as tar sands, vegetables or other solid materials using a solvent is provided. By providing a pressure differential between the exterior and interior of an oil extraction chamber, substantially oil free solids may be r...

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Bibliographische Detailangaben
Hauptverfasser: HAEFELE, GARY R, DUNKEL, GARY L, WEGNER, PAUL C, ALLEN, PETER A
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method and apparatus for continuously removing oil from oil-bearing solids such as tar sands, vegetables or other solid materials using a solvent is provided. By providing a pressure differential between the exterior and interior of an oil extraction chamber, substantially oil free solids may be removed from the oil extraction chamber through a solids extraction channel without removing any substantial volume of solvent through the solids extraction channel.