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Properties of cold lake bitumen saturated with pure gases and gas mixtures
Author(s) -
Mehrotra Anil K.,
Svrcek William Y.
Publication year - 1988
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.5450660419
Subject(s) - asphalt , solubility , viscosity , chemistry , mineralogy , thermodynamics , analytical chemistry (journal) , materials science , organic chemistry , composite material , physics
This paper presents new data for the viscosity, density and gas solubility of Cold Lake bitumen saturated with light gases and gas mixtures over a temperature range of 15 to 103°C at up to 10 MPa pressure. Specifically, the gases whose effects on the bitumen properties were measured are N 2 , CH 4 , CO 2 and C 2 H 6 , and two mixtures of CO 2 and CH 4 . With CO 2 and C 2 H 6 , experiments were also performed in the liquid‐liquid region, and the results of these experiments generally agree with the previously published predictions. The viscosity of the gas‐free Cold Lake bitumen is comparable to that of a Marguerite Lake bitumen that was tested previously. Due to the large solubilities of C0 2 and C 2 H 6 , the reduction in gas‐saturated bitumen viscosity is quite dramatic. The density of the gas‐saturated bitumen decreases with increased amounts of the dissolved CH 4 and C 2 H 6 gases, but no such trends are evident for the N 2 and CO 2 gases. The results of the experiments with two binary gas mixtures (i.e., CO 2 and CH 4 ) indicate that the bitumen properties are affected largely by the major gas constituent.