Process for recovery of oil from shale
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.
- Assignee:
- Allis-Chalmers Corp.
- Patent Number(s):
- US 4412926
- OSTI ID:
- 5357700
- Country of Publication:
- United States
- Language:
- English
Similar Records
Process for recovery of different weight fractions of oil from shale
Apparatus for recovery of different weight fractions of oil from shale
Related Subjects
040402* -- Oil Shales & Tar Sands-- Surface Methods
APERTURES
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DECOMPOSITION
ENERGY SOURCES
ENERGY TRANSFER
FLUIDS
FOSSIL FUELS
FUELS
HEAT TRANSFER
HEAT TRANSFER FLUIDS
KEROGEN
MATERIALS
MINERAL OILS
MOTION
OIL SHALES
OILS
OPENINGS
ORGANIC COMPOUNDS
ORGANIC MATTER
OTHER ORGANIC COMPOUNDS
RECOVERY
RETORTING
ROTATION
SHALE OIL