Organic-mineral matter interactions in Green River oil shale

Conference · Tue Feb 01 04:00:00 EST 1983 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:6288769

Jeong, K M; Kobylinski, T P

The nature of the association between kerogen or bitumen and the mineral matter phase in oil shales has not been well characterized, yet these interactions are fundamental to any proposed separation and oil recovery procedure. Analogous information has been reported concerning marine sediments but relatively little data are currently available relevant to the organicmineral matter interaction in oil shales. Therefore, this study proposed to investigate this problem using a chemical extraction procedure with spectroscopic (FTIR and NMR) identification of the various separated fractions. Samples of Colorado Green River oil shale (C-a tract, Mahogany zone) were treated in a series of acid/ether extractions in order to preferentially disassociate the mineral matter phase. It is known that carbonate minerals are dissolved by HC1 solutions and that pure HF or HF/HC1 mixtures effectively remove silicate minerals, quartz, and clay minerals. Bitumen, the organic fraction soluble in the common organic solvents, was removed by the Soxhlet extraction method. The fraction of the total mineral content encapsulated by kerogen and thus not accessible to an acid treatment is estimated to be insignificant based on the results obtained by this study. The relative amounts of acid/ether extracted organics isolated with both the carbonate and silicate minerals were determined. In addition, it was noted that certain fractions of the bitumen were trapped by these two mineral constituents. On the basis of these data, inferences are made concerning possible types of bonding between kerogen and the inorganic mineral matter matrix.

• Research Organization: Gulf Research and Development Co., Pittsburgh, PA
• OSTI ID: 6288769
• Report Number(s): CONF-830303-
• Conference Information: Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 28:1
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040500* -- Oil Shales & Tar Sands-- Properties & Composition
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CARBONATE MINERALS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
DEMINERALIZATION
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FOURIER TRANSFORMATION
FUELS
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GREEN RIVER FORMATION
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
KEROGEN
MATERIALS
MATRICES
MINERAL OILS
MINERAL RESOURCES
MINERALS
NMR SPECTRA
OIL SHALE DEPOSITS
OIL SHALES
OILS
ORGANIC COMPOUNDS
ORGANIC MATTER
OTHER ORGANIC COMPOUNDS
RESOURCES
SEPARATION PROCESSES
SHALE OIL
SHALE OIL FRACTIONS
SILICATE MINERALS
SOLVENT EXTRACTION
SPECTRA
TRANSFORMATIONS