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Application of the rotating disk method to the study of bitumen dissolution into organic solvents
Author(s) -
Ulrich R. K.,
Koppaiah M. K.,
Majmudar V. K.
Publication year - 1991
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.5450690403
Subject(s) - dissolution , asphalt , toluene , heptane , solvent , viscosity , hexane , mass transfer , chemistry , materials science , analytical chemistry (journal) , organic chemistry , chromatography , composite material
The rotating disk system is demonstrated as a tool for performing studies of the dissolution rate of bitumen into organic solvents. Mass transfer coefficients to the rotating disk are constant in position and time can be made comparable to coefficients for sand particles in agitated liquids by adjusting the rotation rate. Data is presented for bitumen dissolution into pentane, hexane, heptane, toluene and oleic acid. Increasing the level of dissolved bitumen in the solvent decreases the bitumen dissolution flux primarily due to the increase in solvent viscosity.