Friction Theory and Free-Volume Theory Coupled with Statistical Associating Fluid Theory for Estimating the Viscosity of Pure n-Alkanes

Two viscosity models, the friction theory and the free-volume theory, are coupled with the statistical associating fluid theory equations of state, such as SAFT1 and PC-SAFT, to model the viscosity of pure n-alkanes. The parameters of both viscosity models are found to scale linearly with molecular...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2005-10, Vol.44 (22), p.8409-8418
Main Authors: Tan, Sugata P, Adidharma, Hertanto, Towler, Brian F, Radosz, Maciej
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Exact sciences and technology
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Summary:Two viscosity models, the friction theory and the free-volume theory, are coupled with the statistical associating fluid theory equations of state, such as SAFT1 and PC-SAFT, to model the viscosity of pure n-alkanes. The parameters of both viscosity models are found to scale linearly with molecular weight so that the models can predict the viscosity of long n-alkanes.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie050723x