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...

2011-05-24

2011-05-24

Griffin, Walter D (Department: 1774)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

C208S20800M, C208S25100H, C208S25400R, C208S298000, C208S952000

Reexamination Certificate

active

07947165

ABSTRACT:
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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