ANALYSIS OF THE N-COMPONENT N-PHASE EQUILIBRIUM EXTREMUM PROBLEM

Authors
PATTON CL GREEN KA LUKS KD
Citation
Cl. Patton et al., ANALYSIS OF THE N-COMPONENT N-PHASE EQUILIBRIUM EXTREMUM PROBLEM, Fluid phase equilibria, 72, 1992, pp. 267-275
Citations number
9
Journal title
Fluid phase equilibria → ACNP
ISSN journal
03783812
Volume
72
Year of publication
1992
Pages
267 - 275
Database
ISI
SICI code
0378-3812(1992)72:<267:AOTNNE>2.0.ZU;2-6
Abstract
The general condition for a pressure extremum in the n-component n-pha se composition surface when projected onto pressure-temperature coordi nates is identified. For n = 2, the physical situation is well known, being either the state of criticality (liquid = gas) or azeotropy (x1g = x11). For n > 2, it is shown that the extremum results from the exi stence of a linear relation between the compositions of the n phases, with azeotropy being a special case of that constraint.