A correlation of United States tar sand bitumen viscosities with NMR spectroscopic parameters

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Fuel Science and Technology International; (USA)

DOI:https://doi.org/10.1080/08843759008915931· OSTI ID:7040995

Netzel, D A; Turner, T F ^[1]

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1. Western Research Institute, Box 3395, Laramie, WY (US)

A method has been developed whereby the viscosity of a tar sand bitumen at any temperature can be calculated from nuclear magnetic resonance parameters. The method is semi empirical but is based upon some fundamental theoretical concepts for molecular mobility and intermolecular interactions. Using this method, the viscosities of three United States tar sand bitumens have been correlated to the weighted average spin-spin, relaxation rates for the semiliquid, solidlike mobile, and solidlike rigid phases of the bitumens. The results indicate that bitumens with a high viscosity have a greater amount of solidlike rigid phase and lesser amounts of solidlike mobile and semiliquid phases than do the bitumens with low viscosity. It is also shown that the viscosity of a tar sand bitumen over a 100 degree temperature range can be determined from a single NMR experiment conducted near room temperature.

• OSTI ID: 7040995
• Journal Information: Fuel Science and Technology International; (USA), Journal Name: Fuel Science and Technology International; (USA) Vol. 8:4; ISSN FSCTE; ISSN 0884-3759
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000 -- Petroleum-- Properties & Composition
04 OIL SHALES AND TAR SANDS
040401 -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
040500* -- Oil Shales & Tar Sands-- Properties & Composition
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
ENERGY SOURCES
ENERGY TRANSFER
FLUID FLOW
FOSSIL FUELS
FUELS
HEAT TRANSFER
MATERIALS
MATHEMATICAL MODELS
NMR SPECTRA
NORTH AMERICA
OIL SANDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHASE STUDIES
POROUS MATERIALS
RECOVERY
RELAXATION
SPECTRA
SPIN-SPIN RELAXATION
TAR
USA
VISCOSITY