Apparatus for treating oil shale

Patent · Tue Nov 15 04:00:00 EST 1977

OSTI ID:5179536

Reed, Jr, T G

A process and apparatus for decomposing kerogen and recovering oil, high BTU gas and energy for the process are described, wherein a crushed oil shale is fed to a rotary preheater (300/sup 0/ to 350/sup 0/F), hence into a rotary retort (850/sup 0/ to 1050/sup 0/F) where the kerogen is decomposed and the oil evaporated, removed and condensed. From the retort the crushed shale goes to a hopper where any residual oil is stripped out by superheated steam leaving a char on the crushed shale. The stripped shale is fed into a furnace wherein the char is burned to provide heat for the process. To supplement the char and provide enough BTU's for the process, it is necessary to add a small amount of coal to the feed to the process. The hot gases from the furnace first pass into contact with the rotary retort and hence indirectly heat the oil shale in the retort. The hot furnace gases (or a portion thereof) then pass into direct contact with the crushed oil shale feed in the preheater.

• Assignee: TIC; ERA-03-030330; EDB-78-058956
• Patent Number(s): US 4058205
• OSTI ID: 5179536
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
DECOMPOSITION
DISPERSIONS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
FURNACES
GAS FUELS
GASES
GASIFICATION
HEATING
HIGH BTU GAS
KEROGEN
MIXTURES
OIL SHALES
PRODUCTION
RETORTING
VAPOR CONDENSATION