Recovery of retorted shale from an oil shale retorting process
Retorted shale particles are recovered from a retort and delivered to a gas lift for transport to a fluidized combustor by passage, serially, through a sealing vessel, a crusher preferably operating at retort pressure, and a surge vessel. In the sealing vessel, a sealing gas is introduced, and after commingling with the shale, the gas passes counter-currently to the shale and enters the retort, thus sealing the retort gases in the retort while separating the retorted shale from the retort gases. Retorted shale from the sealing vessel is transported to a crusher, wherein the shale is reduced in size to that suitable for combustion under fluidized conditions. To prevent the crushed shale from packing, the shale is passed to a surge vessel, wherein the crushed shale is held as a fluidized bed, from which the crushed shale is continuously withdrawn at a regulated rate and introduced into the gas lift leading to the fluidized combustor.
- Assignee:
- Union Oil Company of California
- Patent Number(s):
- US 4446001
- OSTI ID:
- 6606519
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
040401* -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
ARTIFICIAL LIFTS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COMBUSTORS
COMMINUTION
CONTAINERS
CRUSHING
DECOMPOSITION
DISTILLATION EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FLUIDIZED-BED COMBUSTORS
FLUIDS
FOSSIL FUELS
FUELS
GAS LIFTS
GASES
IN-SITU PROCESSING
IN-SITU RETORTING
MATERIALS
OIL SHALES
PRESSURE VESSELS
PROCESSING
RECOVERY
RETORTING
RETORTS
TRANSPORT