Method for extracting and upgrading of heavy and semi-heavy...

Details Method for extracting and upgrading of heavy and semi-heavy... Method for extracting and upgrading of heavy and semi-heavy...

C - Chemistry, Metallurgy

10

G

C10G 1/04 (2006.01) C10G 1/06 (2006.01)

Patent

CA 2519736

Improvements in the selective extraction of relatively low molecular weight oils from coal, coal liquids, oil shales, shale oils, oil sands, heavy and semi-heavy oils, bitumens, and the like are provided by a continuous process involving contacting the material to be treated with supercritical water in a continuous operation at pressures of from 500 psi to 3000 psi, temperatures of 250°C to 450°C, and in-reactor dwell times generally in excess of 25 seconds and up to 10 minutes.

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