Temperature control in recovery of bitumen from bituminous sand

Patent · Tue Feb 23 04:00:00 EST 1971

OSTI ID:5649696

Cymbalisty, L M.O.

A process is described for the recovery of bitumen from tar sand in which a fluid slurry of tar sand is introduced into intermediate zone of a body of hot water with bitumen rising to the top in the form of a layer of bituminous emulsion and sand settling to the bottom. An upper zone of the body of water immediately below the layer of bituminous emulsion is heated to a temperature greater than the temperature of the intermediate zone into which the slurry is introduced. Such temperature increase is preferably at least about 10/sup 0/F. It is preferred that the water into which the slurry is introduced be maintained at less than about 160/sup 0/F and that the temperture of the heated water immediately below the emulsion layer be maintained between about 165/sup 0/ and about 200/sup 0/F. (3 claims)

• Assignee: Cities Serv Athabasca Inc.
• Patent Number(s): US 3565785
• OSTI ID: 5649696
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CONTROL
CONTROL EQUIPMENT
DISPERSIONS
ENERGY SOURCES
ENGINEERING
EQUIPMENT
FLUID INJECTION PROCESSES
FOSSIL FUELS
FUELS
GRAVITATION
HIGH TEMPERATURE
HOT-WATER PROCESSES
LAYERS
MATERIALS
MIXTURES
OIL SANDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
RECOVERY
RESERVOIR ENGINEERING
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SEPARATION PROCESSES
SLURRIES
SUSPENSIONS
TAR
TEMPERATURE CONTROL
TEMPERATURE DEPENDENCE