Method of recovering oil and water from in situ shale retort flue gas

Patent · Tue Jun 14 04:00:00 EDT 1977

OSTI ID:7102675

French, G B

A technique is described for reducing the content of oil and water in the flue gas recovered from the bottom of an underground in situ oil shale retort. In such a retort air is passed downwardly to sustain a combustion zone for retorting oil which is recovered at the bottom. Flue gas recovered from the bottom of the retort contains water vapor and oil and water aerosols. These are removed from the flue gas by passing it a substantial distance upwardly through cool overburden so that the flue gas is cooled below its dew point so that water condenses in the vertical conduit and aerosols are dropped out on the walls. The oil and water are recovered at the bottom of the conduit and stored in an underground sump. 5 claims, 1 figure.

• Assignee: Occidental Oil Shale, Inc.
• Patent Number(s): US 4029360
• OSTI ID: 7102675
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040401* -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
040900 -- Oil Shales & Tar Sands-- Waste management
AEROSOLS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
COLLOIDS
DISPERSIONS
ENERGY SOURCES
FLUE GAS
FOSSIL FUELS
FUELS
GASEOUS WASTES
HYDROGEN COMPOUNDS
IN-SITU PROCESSING
IN-SITU RETORTING
MINERAL OILS
OIL SHALES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PROCESSING
RECOVERY
RETORTING
SHALE OIL
SOLS
SYNTHETIC FUELS
SYNTHETIC PETROLEUM
WASTES
WATER