ISSN:
1572-9567
Keywords:
binary mixtures
;
butane
;
critical region
;
field variables
;
hexane
;
isopentane
;
pentane
;
propane
;
vapor-liquid equilibrium
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The modified Leung-Griffiths model of Rainwater and Moldover is used to correlate vapor-liquid equilibrium (VLE) surfaces in pressure, temperature, and density for binary mixtures in the near-critical region. The systems studied are butane-pentane, propane-isopentane, butane-hexane, and ethane-butane. The model, which has also successfully fit several other mixtures, is based on scaling-law equations of state expressed in terms of field variables. It incorporates a variation of the principle of corresponding states as well as the coupling of density and composition change across the phase boundary. As the width of the dew-bubble curves increases, additional parameters are required to obtain successful VLE correlations.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00503799
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