Supercritical fluid extraction of bitumen free solids separated from Athabasca oil sand feed and hot water process tailings pond sludge

Journal Article · Mon Jan 01 00:00:00 EST 1990 · Fuel Science and Technology International; (USA)

DOI:https://doi.org/10.1080/08843759008915962· OSTI ID:6626365

Kotlyar, L S; Sparks, B D; Woods, J R; Ripmeester, J A ^[1]

---

1. National Research Council of Canada, Ottawa, ON (Canada). Div. of Chemistry

The presence of strongly bound organic matter (SOM), in association with certain solids fractions, causes serious problems in the processability of Athabasca oil sands as well as in the settling and compaction of hot water process tailing pond sludge. It has been demonstrated that a substantial amount of this SOM can be separated from oil sands feed and sludge solids, after removal of bitumen by toluene, using a supercritical fluid extraction (SFE) method. The extracted material is soluble in common organic solvents which allows a direct comparison, between the SOM separated from oil sands and sludges, from the point of view of both gross analysis of the major compound types and detailed analysis of chemical structures.

• OSTI ID: 6626365
• Journal Information: Fuel Science and Technology International; (USA), Vol. 8:8; ISSN 0884-3759
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
BITUMENS
CHEMICAL COMPOSITION
OIL SANDS
SUPERCRITICAL FLUID CHROMATOGRAPHY
ATHABASCA DEPOSIT
HOT-WATER PROCESSES
SLUDGES
SUPERCRITICAL GAS EXTRACTION
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHROMATOGRAPHY
ENERGY SOURCES
EXTRACTION
FLUID INJECTION PROCESSES
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
MATERIALS
OIL SAND DEPOSITS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
SEPARATION PROCESSES
SOLVENT EXTRACTION
TAR
040500* - Oil Shales & Tar Sands- Properties & Composition
040401 - Oil Shales & Tar Sands- In Situ Methods
True & Modified