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Title:

Multiple Solutions When Fitting Excess Gibbs Energy Models and Implications for Process Simulation

Document type:
Journal Article
Author(s):
Vasiliu, Dan; Göttl, Quirin; Bröcker, Sönke; Burger, Jakob
Abstract:
Abstract Excess Gibbs energy models are often fitted to binary experimental data of phase equilibria. Even in the case of two binary parameters fitted to two binary infinite-dilution activity coefficients, multiple solutions for the parameters may occur. The present work shows that this is also true, if more data – like vapor-liquid equilibrium data sets – is used. Chemical systems and conditions are identified that lead to multiple solutions. It is shown that the multiple solutions may lead to...     »
Journal title:
Chemie Ingenieur Technik
Year:
2021
Journal volume:
93
Journal issue:
3
Pages contribution:
490-496
Fulltext / DOI:
doi:https://doi.org/10.1002/cite.202000162
WWW:
https://onlinelibrary.wiley.com/doi/abs/10.1002/cite.202000162
Print-ISSN:
0009-286X
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