Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1981-12-31
1983-11-01
Gantz, Delbert E.
Mineral oils: processes and products
Products and compositions
Lubricating oils
208 8R, 201 32, C10B 5306, C10G 100
Patent
active
044129092
ABSTRACT:
A method and apparatus for recovering oil from shale comprises forming a bed of oil bearing shale particles on a plurality of rotatable apertured cylindrical rollers having filler members in the nip between adjacent rollers; transporting the bed by rotating the rollers to frictionally engage the shale particles and transfer them onto and across the filler members to continuously agitate the particles as they are being transported at a velocity substantially lower than the circumferential velocity of the rollers; passing through the moving bed at spaced points a plurality of discrete streams of nonoxidizing gas heated to different temperatures sufficiently high to educe different weight fractions of oil from the kerogen in the shale as vapors into the gas streams; and separating the different weight oil fractions from the gas streams. Preferably the heated nonoxidizing gas streams exiting the retorting zones are passed through the moving bed upstream from distillation of the volatile oil constituents to preheat the moving bed and condense the educted oils which become suspended as stable mists that can be separated from the gas streams.
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Faulkner Bobby P.
Weinecke Michael H.
Allis-Chalmers Corporation
Caldarola Glenn A.
Gantz Delbert E.
Kaiser Lee H.
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