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U.S. Department of Energy
Office of Scientific and Technical Information

Retorting process

Patent ·
OSTI ID:6419818

Fines in the overhead vapors from an oil shale retort process in which fresh shale together with hot recycle combusted shale from a combustor are fed to a retort and at least partly fluidized by a countercurrent stripping gas stream are handled by removing a portion of the fines in a vapor-solid separation optionally subjecting the portion of fines to additional retorting in a fines retort condensing the partially dedusted gas separating the condensate into a substantially finesfree liquid oil and a wet solids and recycling at least a portion of the wet solids to the retort, fines retort, and/or combustor whereby the liquid on the wet solids is recovered and/or burned and the wet solids are dried.

Assignee:
Chevron Research Co.
Patent Number(s):
US 4455217
OSTI ID:
6419818
Country of Publication:
United States
Language:
English