Characterization of nickel and vanadium compounds in tar sand bitumen by UV-VIS spectroscopy and size exclusion chromatography coupled with element specific detection

Journal Article · Sun Jan 01 00:00:00 EST 1989 · Fuel Science and Technology International; (USA)

DOI:https://doi.org/10.1080/08843758908962261· OSTI ID:5717364

Reynolds, J G; Jones, E L; Bennett, J A ^[1]; Biggs, W R ^[2]

---

1. Lawrence Livermore National Lab., CA (USA)
2. Chevron Research Co., Richmond, CA (USA)

Previously, the authors examined the Ni and V in heavy crude oils, residua, and processed products by several metal speciation techniques to ascertain molecular structure and processing behavior. Two classes of metal compounds were found - metallopetroporphyrins and metallo-nonprophyrins - each having unique reactivity during processing. In efforts to better understand the binding of metals in the oil medium, they now examine NI and V in tar sand bitumens. The bitumen was solvent extracted from the sand matrix and was separated by column chromatography and the petroporphyrin content was quantitated by UV-vis spectroscopy. The petroporphyrin contents ranged from virtually none to over 36% of the total metals. Asphalt Ridge (Utah) has primarily Ni petroporphyrins; Big Clifty (Kentucky) and Athabasca (Canada) have primarily V petroporphyrins; Arroyo Grande and McKittrick (California) have roughly equal amounts of both types; and Sunnyside (Utah) has virtually none of either.

• OSTI ID: 5717364
• Journal Information: Fuel Science and Technology International; (USA), Vol. 7:5-6; ISSN 0884-3759
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BITUMENS
CHEMICAL COMPOSITION
ATHABASCA DEPOSIT
CALIFORNIA
CHEMICAL BONDS
CHROMATOGRAPHY
KENTUCKY
NICKEL COMPOUNDS
OIL SANDS
PETROLEUM
PETROLEUM RESIDUES
ULTRAVIOLET SPECTRA
UTAH
VANADIUM COMPOUNDS
VENEZUELA
VISCOSITY
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
DEVELOPING COUNTRIES
ENERGY SOURCES
FEDERAL REGION IV
FEDERAL REGION IX
FEDERAL REGION VIII
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
LATIN AMERICA
MATERIALS
NORTH AMERICA
OIL SAND DEPOSITS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM FRACTIONS
SEPARATION PROCESSES
SOUTH AMERICA
SPECTRA
TAR
TRANSITION ELEMENT COMPOUNDS
USA
040500* - Oil Shales & Tar Sands- Properties & Composition
400102 - Chemical & Spectral Procedures