Tytuł artykułu
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Języki publikacji
Abstrakty
We examine the parametrization of four molecular-based equations of state (MBEOS): PC-SAFT, soft-SAFT, PHSC and PSCT. In each case, scaled critical and saturation properties are calculated and related to critical temperature Tc, critical pressure Pc and acentric factor omega through equivalent polynomial expressions. A parametrization strategy matching experimental data of Tc, Pc and omega gives good fits of saturation pressures, but deviations in saturated liquid densities reflect the limitations of each MBEOS in representing the critical region. Nevertheless, the method presented provides a simple way to determine the MBEOS parameters for a wide variety of fluids and can be extended to other models.
Słowa kluczowe
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Czasopismo
Rocznik
Tom
Strony
37--49
Opis fizyczny
Bibliogr. 9 poz., rys.
Twórcy
autor
autor
autor
- TADiP Group, Department of Thermodynamics and Transport Phenomena, Simón Bolívar University, Caracas 1080, Venezuela
Bibliografia
- 1. Bouza A., Colina C.M. and Olivera-Fuentes C.G., Fluid Phase Equilib., 228-229, 561 (2005).
- 2. Gross J. and Sadowski G., Ind. Eng. Chem. Res., 40, 1244 (2001).
- 3. Blas F. and Vega L., J. Chem. Phys., 115, 4355 (2001).
- 4. Song V., Lambert S. and Prausnitz J.M., Ind. Eng. Chem. Res., 33, 1047 (1994).
- 5. Morris W., Vimalchand P. and Donohue M., Fluid Phase Equilib., 32, 103 (1987).
- 6. NIST Chemistry WebBook, NIST Standard Reference Database Number 69, Eds. Linstrom P., Mallard W.,National Institute of Standards and Technology, Gaithersburg MD, 20899 (http://webbook.nist.gov/chemistry/).
- 7. Pamies J. and Vega L., Ind. Eng. Chem. Res., 40, 2532 (2001).
- 8. Castro-Marcano F. and Olivera-Fuentes C., in Proceedings of the X Latin American Congress of Heat and Mass Transfer, Venezuela, 2005, CD-ROM.
- 9. Johnson J.K., Zollweg J.A. and Gubbins K.E., Mol. Phys., 78, 591 (1993).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ3-0006-0003