Chemical and Biomolecular Engineering Research and Publications

 

ORCID IDs

Demirel 0000-0002-8183-0991

Date of this Version

10-2005

Citation

Fluid Phase Equilibria (October 2005) 232(1-2)

Comments

Copyright © 2005, Elsevier. Used by permission

Abstract

The Gibbs energy minimization using activity coefficient models and nonlinear equation solution techniques are commonly applied for phase stability problems. However, dependence on the initial estimates and multiple solutions for these highly nonlinear equations are common drawbacks for some of the conventional approaches. We have used interval Newton method with the local composition model of NRTL for the phase stability analysis of 10 binary systems and 2 ternary systems at various feed compositions to locate all the stationary points. Results indicate that the interval Newton method is reliable and efficient.

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