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Augmented BACK equation of state II: Polar fluid mixtures

✍ Scribed by M. J. Lee; K. C. Chao


Publisher
American Institute of Chemical Engineers
Year
1988
Tongue
English
Weight
540 KB
Volume
34
Category
Article
ISSN
0001-1541

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✦ Synopsis


The augmented BACK equation of state for polar fluids is extended to mixtures by introducing mixing rules separately for the nonpolar and polar interactions. Fluid phase equilibria are calculated for polar + nonpolar, and polar + polar mixtures including mixtures of hydrogen-bonding substances. Enthalpy calculations are illustrated with enthalpy of H, S + N, and heats of mixing of steam mixtures, and carbon dioxide mixtures.

Cross interaction coefficients are adjusted for the correlation of data on binary mixtures. Both phase equilibrium and enthalpy data are correlated at the same time with two such coefficients for each binary. The cross interaction coefficients are constants, invariant with temperature, density, or phase state.


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