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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 48-58 |
| Number of pages | 11 |
| Journal | Fluid Phase Equilibria |
| Volume | 237 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - Oct 25 2005 |
Keywords
- Interval Newton method
- NRTL model
- Phase stability
ASJC Scopus subject areas
- Chemical Engineering(all)
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
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Cite this
Gecegormez, H., & Demirel, Y. (2005). Phase stability analysis using interval Newton method with NRTL model. Fluid Phase Equilibria, 237(1-2), 48-58. https://doi.org/10.1016/j.fluid.2005.08.014