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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Begoña González (Autor) FEUP; Noélia Calvar (Autor) FEUP; Ángeles Domínguez (Autor) Outra; José Tojo (Autor) Outra

Revista

Título: Journal of Chemical Thermodynamics

Vol. 39

Páginas: 322-334

ISSN: 0021-9614

Editora: Elsevier

Indexação

ISI Web of Science

Scopus

Classificação Científica

FOS: Ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas

Outras Informações

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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica