Apparatus for recovery of different weight fractions of oil from shale
An oil shale retorting method and apparatus moves a bed of oil bearing shale particles along a generally horizontal path and passes through the bed at spaced points a plurality of discrete nonoxidizing gas streams heated to different oil educting temperatures to vaporize and educe different weight fractions of oil from the kerogen in the shale into the gas streams. Preferably the heated gas streams are also passed through the moving shale bed upstream from distillation of the volatile oil constituents to preheat the shale particles and condense the educted oils which become suspended as stable mists and are mechanically separated from the gas streams. Heat energy is preferably removed from the spent shale particles of the moving bed by burning them with combustion air downstream from the retorting sites, and such heat energy is transferred to the nonoxidizing streams to raise them to different oil educting temperatures before they are passed through the moving bed to educe oil from the shale particles.
- Assignee:
- Allis-Chalmers Corp.
- Patent Number(s):
- US 4461674
- OSTI ID:
- 6155697
- Country of Publication:
- United States
- Language:
- English
Similar Records
Process for recovery of oil from shale
Process for recovery of oil from shale
Related Subjects
040402* -- Oil Shales & Tar Sands-- Surface Methods
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHEMICAL REACTORS
CONTROL
DECOMPOSITION
DESIGN
DISTILLATION
DISTILLATION EQUIPMENT
ENERGY RECOVERY
ENERGY SOURCES
EQUIPMENT
EVAPORATION
FOSSIL FUELS
FUELS
HEAT RECOVERY
KEROGEN
MATERIALS
MINERAL OILS
OIL SHALES
OILS
ORGANIC COMPOUNDS
ORGANIC MATTER
OTHER ORGANIC COMPOUNDS
PARTICLES
PARTICULATES
PHASE TRANSFORMATIONS
PROCESS CONTROL
RECOVERY
RETORTING
RETORTS
SEPARATION PROCESSES
SHALE OIL