Generalized reference fugacities for phase equilibrium thermodynamics

✍ Scribed by E.W. Lyckman; C.A. Eckert; J.M. Prausnitz

• Book ID: 103003401
• Publisher: Elsevier Science
• Year: 1965
• Tongue: English
• Weight: 366 KB
• Volume: 20
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(65)80005-7

✦ Synopsis

The reference fugacity for the liquid-phase activity coefficient of any component is chosen as the fugacity of pure liquid of that component at the temperature of the solution and at zero pressure. When suitably nbn-dimensionalized, this reference fugacity is a function only of reduced temperature and acentric factor; using Pitzer's tables reduced reference fugacities are calculated from a reduced temperature of 0.56 to 1-0 and, by extrapolation, to 1.5. For non-condensable components it is necessary to know the partial molar volume in liquid solution and an approximate correlation for this quantity is presented. The results of this work should be useful for the systematic interpretation and correlation of phase equilibrium data.