What does the NRTL model look like? Determination of boundaries for different fluid phase equilibrium regions
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Título: | What does the NRTL model look like? Determination of boundaries for different fluid phase equilibrium regions |
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Autor/es: | Labarta, Juan A. | Olaya, Maria del Mar | Marcilla, Antonio |
Grupo/s de investigación o GITE: | Computer Optimization of Chemical Engineering Processes and Technologies (CONCEPT) | Procesado y Pirólisis de Polímeros |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ingeniería Química | Universidad de Alicante. Instituto Universitario de Ingeniería de los Procesos Químicos |
Palabras clave: | NRTL model | Phase equilibria | Experimental data correlation | Miscibility boundaries | LLE | VLE | Gibbs energy of mixing |
Área/s de conocimiento: | Ingeniería Química |
Fecha de publicación: | 15-jun-2022 |
Editor: | Wiley Periodicals | American Institute of Chemical Engineers |
Cita bibliográfica: | AIChE Journal. 2022, 68(10): e17805. https://doi.org/10.1002/aic.17805 |
Resumen: | The adequate correlation of experimental phase equilibrium data by using any thermodynamic model represents a key point for the rigorous design of the chemical processes. However, this data correlation process remains a challenging problem, due to the high nonlinearity of the models used and the consequent problems of convergence. The present work analyzes the NRTL model to check the relation between the values of the binary interaction parameters and the corresponding phase equilibria that the NRTL model can or cannot reproduce. Additionally, in the case of the LLE, empirical equations have been established as a function of the non-randomness parameter, to model the trajectory of the different miscibility boundaries observed. These functions can be used as constraints in the experimental data correlation procedure to reduce the search space and guarantee the consistency of the obtained binary interaction parameters with the experimental behavior of the system under study. |
URI: | http://hdl.handle.net/10045/124679 |
ISSN: | 0001-1541 (Print) | 1547-5905 (Online) |
DOI: | 10.1002/aic.17805 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2022 The Authors. AIChE Journal published by Wiley Periodicals LLC on behalf of American Institute of Chemical Engineers. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1002/aic.17805 |
Aparece en las colecciones: | INV - CONCEPT - Artículos de Revistas INV - GTP3 - Artículos de Investigación sobre Equilibrio entre Fases |
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