Retort for oil-bearing shales

Patent · Tue Oct 31 04:00:00 EST 1967

OSTI ID:6280735

West, H F

In a novel means for retorting oil bearing shale to extract the vapors externally heated, attrition-resistant solid bodies such as steel or ceramic balls transfer heat to the oil shale. A stationary drum retort is equipped with an internal rotating screw which contains throughout its length perforated or slotted screw flights together with baffles designed so that the solid balls are retained on the screw and do not fall through the slots or perforations. The oil shale, which is crushed by action of the heated balls, is fed into the top of the retort and by gravity falls down through the perforations in the screw to the bottom. Here the carbonaceous residue or shale coke is removed and may be burned to supply heat to the external heater, which in turn supplies heat to the recycled balls. The externally heated balls are recycled through the retort and back to the external heater for subsequent reheating and recycling. (3 claims)

• Assignee: Standard Oil Co., Ohio
• Patent Number(s): US 3350280
• OSTI ID: 6280735
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
ALLOYS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CERAMICS
CHEMICAL REACTIONS
CHEMICAL REACTORS
DECOMPOSITION
DESIGN
DISTILLATION EQUIPMENT
ENERGY SOURCES
ENERGY TRANSFER
EQUIPMENT
FOSSIL FUELS
FUELS
HEAT TRANSFER
INDUSTRIAL PLANTS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
OIL SHALES
PYROLYSIS
RETORTING
RETORTS
STEELS
THERMOCHEMICAL PROCESSES