1991
DOI: 10.1016/0022-3093(91)90326-2
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Asphaltenes in polar solvents

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Cited by 81 publications
(85 citation statements)
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“…Several studies on the influence of asphaltenes on viscosity have been performed in organic solvents [18,19], which are not really representative of the complexity of the crude. We proposed in previous publication [20] a recombining method where asphaltenes are solubilized in maltenes after a magnetic stirring at 80°C during 1 h. We showed in [20] that heavy crude oil and its recombined sample have the same rheological and structural behavior.…”
Section: Asphaltenes I5 and I9 In Maltenes 321 Rheological Measuremmentioning
confidence: 99%
“…Several studies on the influence of asphaltenes on viscosity have been performed in organic solvents [18,19], which are not really representative of the complexity of the crude. We proposed in previous publication [20] a recombining method where asphaltenes are solubilized in maltenes after a magnetic stirring at 80°C during 1 h. We showed in [20] that heavy crude oil and its recombined sample have the same rheological and structural behavior.…”
Section: Asphaltenes I5 and I9 In Maltenes 321 Rheological Measuremmentioning
confidence: 99%
“…Asphaltenes are also known to self-associate and possibly form colloids or micelles (4)(5)(6). There is some inconsistency in the literature over the usage of "micelles" and "colloids" in reference to asphaltenes.…”
Section: Introductionmentioning
confidence: 97%
“…Based on surface tension, viscosity, dielectric relaxation, conductivity, and small angle neutron scattering measurements, asphaltene molecules exhibit a strong propensity for self-association and that these aggregates are approximately spherical in shape (Sheu et al, 1991). The conductivity and dielectric relaxation measurements suggest that the electron transformation between asphaltene molecules is the main mechanism in forming aggregates, but these aggregates do not percolate at either high concentration or high temperature (60°C).…”
Section: Asphaltene Constituents Propertiesmentioning
confidence: 99%