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The determination of solubility of liquids in supercritical fluids using dielectric constants

M. Tech. Chemical Engineering. / The solubility of highly volatile non polar solutes (hexane, toluene and benzene) was determined in CO2, in the vicinity of supercritical conditions using a method employing dielectric constants. This method is based on the measurement of the dielectric constant of the saturated supercritical solution and that of the supercritical solvent as a function of pressure along different isotherms, by using the Clausius- Mossotti function. Results were in agreement with literature values, proving that this method can be used to determine the solubility of a solute in a pressurized gas. The results obtained demonstrate the capability of the dielectric constant method as a nonintrusive, simple and efficient means of determining accurately the solubility of liquids in supercritical solvents.

Identiferoai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:tut/oai:encore.tut.ac.za:d1000493
Date January 2011
CreatorsWabula, Kazamwali Serge.
ContributorsBotha, B. M.
Source SetsSouth African National ETD Portal
LanguageEnglish
Detected LanguageEnglish
TypeText
FormatPDF

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