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Molecular structure of oil shale kerogens

Conference · · American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)
OSTI ID:5338626
; ;
Oil shales are industrially defined, and consequently their kerogen can have various origins, resulting in various molecular structures. Theses structures determine the oil yield and composition upon retorting, and are thus of great practical importance. The structures presented were derived from a combined interpretation of data obtained by elemental analysis, electron microscopy, H and {sup 13}C NMR, thermogravimetry, functional analysis and pyrolysis-GC on a few samples considered as representative. They are average structures, based on the minimum molecular weight necessary to represent the analytical details distinguished in our studies. These sizes are too small to take into account organometallic units; this was done intentionally, since to date there is no agreement on the nature of the metals bonding. Further progress in this direction is needed.
OSTI ID:
5338626
Report Number(s):
CONF-8704343--
Conference Information:
Journal Name: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA) Journal Volume: 32:1
Country of Publication:
United States
Language:
English

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Related Subjects

04 OIL SHALES AND TAR SANDS
040500* -- Oil Shales & Tar Sands-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
BITUMINOUS MATERIALS
CARBON 13
CARBON ISOTOPES
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
DATA
DECOMPOSITION
ELECTRON MICROSCOPY
ENERGY SOURCES
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GAS CHROMATOGRAPHY
GRAVIMETRIC ANALYSIS
HYDROGEN 1
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
KEROGEN
LIGHT NUCLEI
MAGNETIC RESONANCE
MATERIALS
MICROSCOPY
MOLECULAR WEIGHT
MULTI-ELEMENT ANALYSIS
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
OIL SHALES
ORGANIC MATTER
PYROLYSIS
QUANTITATIVE CHEMICAL ANALYSIS
RESONANCE
SEPARATION PROCESSES
SPECTRA
STABLE ISOTOPES
STRUCTURAL CHEMICAL ANALYSIS
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
THERMOCHEMICAL PROCESSES