Characterization of metalloporphyrins in Alberta oil sands and components
Compositional similarities in crude oils represent a basis for correlation (oil/oil oil/source rock) studies. One class of compounds with desirable characteristics are the metalloporphyrins for which the HPLC fingerprints or the DPEP/Etio ratios are two parameters used to correlate oils. The DPEP/Etio ratio in metalloporphyrin aggregates are used to compare the Athabasca, Peace River, and Cold Lake bitumens. The same parameter is also used to compare the porphyrin distributions in two crude oils from Northern Alberta to those in the oil sand bitumens. The distribution of the DPEP and Etio homologous series were also used to compare the metalloporphyrins isolated from the three oil-sand bitumens to those in the maltenes and asphaltenes. Two additional porphyrin aggregates were prepared through sequential methanol extraction of the asphaltenes. Vanadyl and nickel porphyrin extracts were purified by column chromatography on silica gel and alumina and mass spectrometry was used to characterize the metalloporphyrins and to measure C-number distributions. The lowest DPEP/Etio ratio was found in the maltenes and the highest was in the asphaltene extracts. The geochemical significance of these findings will be discussed.
- Research Organization:
- Dept. of Chemistry and Nuclear Radiation Center, Washington State Univ., Pullman, WA 99164-1300
- OSTI ID:
- 5473280
- Report Number(s):
- CONF-860425-
- Journal Information:
- Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Vol. 31:2; ISSN ACPCA
- Country of Publication:
- United States
- Language:
- English
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04 OIL SHALES AND TAR SANDS
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040500* -- Oil Shales & Tar Sands-- Properties & Composition
ADSORBENTS
ALBERTA
ASPHALTENES
ASPHALTS
BITUMENS
BITUMINOUS MATERIALS
CANADA
CARBONACEOUS MATERIALS
CARBOXYLIC ACIDS
CHEMICAL COMPOSITION
CHEMISTRY
CHROMATOGRAPHY
COMPLEXES
CORRELATIONS
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
GEOCHEMISTRY
GEOLOGIC DEPOSITS
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
LIQUID COLUMN CHROMATOGRAPHY
MASS SPECTROSCOPY
MATERIALS
MINERAL RESOURCES
NICKEL COMPLEXES
NORTH AMERICA
OIL SAND DEPOSITS
OIL SANDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DEPOSITS
PORPHYRINS
RESOURCES
SEPARATION PROCESSES
SILICA GEL
SOLVENT EXTRACTION
SPECTROSCOPY
TAR
TRANSITION ELEMENT COMPLEXES
VANADIUM COMPLEXES