Processing of tar sands

Patent · Tue Jan 03 00:00:00 EST 1984

OSTI ID:6926472

Mitchell, T O

The present invention relates to an improved process for the recovery of bitumen from tar sands comprising first heating the raw tar sands with steam at a temperature sufficient to visbreak a portion of the bitumen without significant thermal cracking thereby producing a vaporous distillate product mixed with steam and lowering the viscosity and specific gravity of the residual bitumen on the heat treated tar sands. The distillate product and steam are cooled and condensed and mixed the heat treated tar sands containing residual beneficiated bitumen to form a slurry. Bitumen is then recovered from the slurry by a hot-water separation process.

• Assignee: Mobil Oil Corp., New York, N.Y.
• Patent Number(s): US 4424113
• OSTI ID: 6926472
• Resource Relation: Patent File Date: Filed date 7 Jul 1983; Other Information: PAT-APPL-511615
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
BITUMENS
THERMAL CRACKING
OIL SANDS
HEATING
DISTILLATES
FUEL SLURRIES
HOT-WATER PROCESSES
MIXING
STEAM
VAPOR CONDENSATION
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DISPERSIONS
ENERGY SOURCES
FLUID INJECTION PROCESSES
FOSSIL FUELS
FUELS
MATERIALS
MIXTURES
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PYROLYSIS
SLURRIES
SUSPENSIONS
TAR
THERMOCHEMICAL PROCESSES
040403* - Oil Shales & Tar Sands- Refining