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Viscosity of cold lake bitumen and its fractions
Author(s) -
Mehrotra Anil K.,
Eastick Robert R.,
Svrcek William Y.
Publication year - 1989
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.5450670620
Subject(s) - asphalt , softening point , viscosity , temperature dependence of liquid viscosity , reduced viscosity , relative viscosity , thermodynamics , distillation , softening , atmospheric temperature range , chemistry , materials science , mineralogy , chromatography , composite material , physics
New data are presented for the effect of temperature on the viscosity of bitumen fractions, which were obtained by vacuum distillation of a large Cold Lake bitumen sample. The viscosity of these fractions differs by several orders of magnitude; from 4.3 mPaϵs for Cut 1 to 430 000 mPaϵs for Cut 4 at 30°C. Cut 5 is a glass‐like solid at room temperature with a softening temperature of about 100°C, and has a viscosity of 800 000 mPaϵs at 120°C. The effect of temperature on the viscosity of each bitumen fraction is modelled very well with a two‐parameter correlation that was shown to be valid generally for Alberta bitumens. The results of bitumen viscosity calculations, based on a simple liquid‐mixture viscosity formula, are presented and compared with the bitumen viscosity data.