Oil shale retorting process

Patent · Tue Jul 22 04:00:00 EDT 1986

OSTI ID:5415791

Anderson, A L; McConaghy, Jr, J R

A process is described for producing syncrude from oil shale including: (a) providing a particulate oil shale feed comprised of at least 75 percent by weight of plus 4 mesh particles; (b) separating the oil shale feed into a fines fraction and a crushed shale fraction; (c) preheating the crushed shale fraction; (d) feeding the preheated shale fraction to a reduced diameter center section of a retort vessel; (e) feeding the fines fraction into a disengaging section of the retort vessel, the disengaging section being above the center section and having gas flowing upwardly therein at or above the gas velocity just above the shale feed point, but below the rate at which substantial fluidization of solids occur; (f) retorting the preheated shale fraction in a gravity flow retorting section of the retort vessel, the retorting section being below the center section and having a larger diameter than the center section; (g) feeding retorted shale from the retorting section to a combustor to produce hot spent shale and hot combustion gases.

• Assignee: Conoco, Inc., Ponca City, OK
• Patent Number(s): US 4601812
• OSTI ID: 5415791
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHEMICAL REACTORS
COMBUSTORS
DECOMPOSITION
DISTILLATION EQUIPMENT
ENERGY RECOVERY
ENERGY SOURCES
EQUIPMENT
FLOW RATE
FLUID FLOW
FLUIDIZATION
FLUIDS
FOSSIL FUELS
FUELS
GAS FLOW
GASES
HEAT RECOVERY
HEATING
MATERIALS
OIL SHALE FINES
OIL SHALES
PARTICLES
PARTICULATES
QUANTITY RATIO
RECOVERY
RETORTING
RETORTS
SYNTHESIS
SYNTHETIC FUELS
SYNTHETIC PETROLEUM
VAPORS