Retorting process

Details Retorting process Retorting process

1981-11-25

1984-06-19

Shine, W. J.

Mineral oils: processes and products

Products and compositions

Lubricating oils

208 8R, C10G 100

Patent

active

044552173

ABSTRACT:
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 (a) removing a portion of the fines in a vapor-solid separation (b) optionally subjecting the portion of fines to additional retorting in a fines retort (c) condensing the partially dedusted gas (d) separating the condensate into a substantially fines-free liquid oil and a wet solids and (e) 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.

REFERENCES:
patent: 3839186 (1974-10-01), Berger
patent: 4069133 (1978-01-01), Unverferth
patent: 4105502 (1978-08-01), Choi
patent: 4183800 (1980-01-01), Mitchell et al.
patent: 4246093 (1981-01-01), Wolcott, Jr.
patent: 4263124 (1981-04-01), Wickstrom et al.
patent: 4266699 (1980-10-01), Nutter

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