Dynamic viscosities of binary mixtures of cycloalkanes with primary alcohols at T = (293.15, 298.15, and 303.15) K: New UNIFAC-VISCO interaction parameters

• Type: Article in International Scientific Journal
• Date: 2007

Authors

Begoña González (Author) FEUP; Noélia Calvar (Author) FEUP; Ángeles Domínguez (Author) Other; José Tojo (Author) Other

Journal

Title: Journal of Chemical Thermodynamics

Vol. 39

Pages: 322-334

ISSN: 0021-9614

Publisher: Elsevier

Indexing

ISI Web of Science

Scopus

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

Abstract (EN): In this work, dynamic viscosities, densities, and speed of sound have been measured over the whole composition range and 0.1 MPa for the binary mixtures (cyclopentane and cyclohexane with ethanol, 1-propanol, and 1-butanol) at several temperatures (293.15, 298.15, 303.15) K along with the properties of the pure components. Excess molar volumes, molar isentropic compression, excess molar isentropic compression, and excess free energy of activation for the binary systems at the above mentioned temperatures, were calculated and fitted to the Redlich–Kister equation to determine the fitting parameters and the root-mean-square deviations. The UNIQUAC equation was used to correlate the experimental viscosity data. The UNIFAC-VISCO method and ASOG-VISCO method, based on contribution groups, were used to predict the dynamic viscosities of the binary mixtures. The interaction parameters of cycloalkanes with primary alcohol (CHcy/-OH) have been determined for their application in the predictive UNIFAC-VISCO method.

Language: English

Type (Professor's evaluation): Scientific