Biodiesel production and use in oil sands processing

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United States of America Patent

PATENT NO 7824453
SERIAL NO

11517730

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Abstract

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A method for obtaining heavy oil is disclosed. The method includes mixing a material including heavy oil (e.g., oil sand) with a solvent including biodiesel to form a mixture and separating the mixture into a oil-enriched solvent phase and a residual sand phase. The method also can include introducing a solvent including biodiesel into an in-situ geological formation including heavy oil and collecting a mixture including biodiesel and heavy oil from the formation. For example, the mixture can be collected after the solvent travels through at least a portion of the formation by gravity. A method for producing biodiesel also is disclosed. The method includes microbially digesting asphaltenes to form a liquor including a fatty acid and reacting the fatty acid with an alcohol to produce biodiesel. This method can be used to convert petroleum asphaltenes and/or coal asphaltenes into biodiesel.

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Patent Owner(s)

Patent OwnerAddress
SHELL CANADA ENERGYCALGARY AB T2P 2H5
CHEVRON CANADA LIMITED500 5TH AVENUE SW CHANGPING BEIJING T2P 0L7

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duyvesteyn, Willem P C Reno, US 62 1088

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