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Viscous and yield stress properties of athabasca topped heavy oil
Author(s) -
De Kee Daniel,
Chornet Esteban,
Zhang Wenqi
Publication year - 1998
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450760418
Subject(s) - asphalt , extrapolation , rheology , yield (engineering) , viscosity , rheometer , thermodynamics , pentane , arrhenius equation , oil sands , stress (linguistics) , range (aeronautics) , materials science , chemistry , mathematics , composite material , physics , organic chemistry , activation energy , statistics , philosophy , linguistics
This contribution reports on a study of the rheological behavior of Athabasca topped heavy oil as a prototype oil derived from western Canadian bitumen. Mixtures of crudes with additives such as pentane and toluene are studied. Data obtained using three different rheometers superpose rather well. Observed non‐Newtonian behavior was successfully modeled by a simplified equation, derived from a model proposed by De Kee and Chan Man Fong (1994). Yield stress data were determined using a technique which does not involve extrapolation. Both yield stress as well as viscosity data obey Arrhenius type relations over the temperature range studied.