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In the present work, the F-SAC (Functional-Segment Activity Coefficient) model was used to predict the water solubility at high temperatures (and pressures) of defined hydrocarbons and non-defined oil fractions. Since in the F-SAC model no pressure effects are considered, the model was coupled with the Soave-Redlich-Kwong (SRK) equation of state by means of the Self-Consistent Mixing Rule (SCMR) in...
A new robust method for determination of hydrocarbons in water without use of Freon TM or other halogenated solvents has been validated and subjected to an interlaboratory exercise. The method is based on extraction with a light hydrocarbon (boiling point in the 39-69 o C range), followed by cleanup for removal of polar components and detection by gas chromatography (GC) with...
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