/sup 13/C NMR characterization of humic matter present in different oil sands

Journal Article · Sat Dec 31 23:00:00 EST 1988 · Fuel Science and Technology International; (USA)

DOI:https://doi.org/10.1080/08843758908962254· OSTI ID:5625257

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

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

Insoluble organic matter (humic matter) present in oil sands can alter the wettability of the inorganic matrix and thereby cause serious problems during bitumen recovery. Using a cold water agitation test, solids rich in organic matter were isolated from various oil sands which were chosen to reflect different behavior in the hot water extraction process. /sup 13/C NMR examination of these separated solids showed significant structural variations between samples isolated from different oil sands. Humic matter from Utah oil sand appeared to be more aliphatic than that derived from Athabasca oil sand. Humic acids extracted from organic rich solids as a result of prolonged treatment with 2% NaOH show remarkable similarity in their /sup 13/C NMR spectra. Humins differ substantially in the relative contribution of the terrestrial and marine source material. There was apparent correspondence between poor bitumen separation and the presence of humin with highly paraffinic structures.

• OSTI ID: 5625257
• Journal Information: Fuel Science and Technology International; (USA), Journal Name: Fuel Science and Technology International; (USA) Vol. 7:5-6; ISSN FSCTE; ISSN 0884-3759
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040401 -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
040500* -- Oil Shales & Tar Sands-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400105 -- Separation Procedures
ATHABASCA DEPOSIT
BITUMENS
BITUMINOUS MATERIALS
CARBON 13
CARBON ISOTOPES
CARBONACEOUS MATERIALS
CHEMICAL PROPERTIES
ENERGY SOURCES
ENHANCED RECOVERY
EVEN-ODD NUCLEI
FEDERAL REGION VIII
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
HUMIC ACIDS
ISOTOPES
LIGHT NUCLEI
MATERIALS
MOLECULAR STRUCTURE
NMR SPECTRA
NORTH AMERICA
NUCLEI
OIL SAND DEPOSITS
OIL SANDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
RECOVERY
SEPARATION PROCESSES
SPECTRA
STABLE ISOTOPES
TAR
THERMAL RECOVERY
USA
UTAH
VARIATIONS
WETTABILITY