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Analysis of institutional authors

Diaz, IsmaelCorresponding AuthorRodriguez, ManuelAuthorGonzález, Emilio J.AuthorGonzalez-Miquel, MariaAuthor

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June 9, 2019
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A simple and reliable procedure to accurately estimate NRTL interaction parameters from liquid-liquid equilibrium data

Publicated to: Chemical Engineering Science. 193 370-378 - 2019-01-16 193(), DOI: 10.1016/j.ces.2018.09.015

Authors:

Diaz, Ismael; Rodriguez, Manuel; Gonzalez, Emilio J.; Gonzalez-Miquel, Maria;
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Affiliations

Univ Politecn Madrid, Dept Ingn Quim Ind & Medio Ambiente, ETSI Ind, C Jose Gutierrez Abascal 2, Madrid, Spain - Author

Abstract

Fitting liquid-liquid equilibrium (LLE) data to common thermodynamic models (NRTL, UNIQUAC...) has been proved in the past to be a non trivial task. Many times it leads to inconsistent solutions where the Gibbs stability criteria is not satisfied. In this work, a simplified parameter estimation problem is formulated where the Gibbs stability criteria and the minimization of experimental and calculated phase composition distances, are simultaneously applied. This formulation is intended to be implemented in general mathematical computing software. Five isothermal ternary systems are studied and the obtained NRTL binary interaction parameters are compared with both existing published parameters and those obtained from commercial data regression tools. Results show that the combination of the proposed problem formulation with commercial non-linear programming solvers improves the quality of the ternary fittings obtained. (C) 2018 Elsevier Ltd. All rights reserved.
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Keywords

Excess gibbs energyLiquid-liquid equilibriumMixturesModelsNrtlOptimizationParameter estimationPhasePredictionRetrievalStabilitySystems

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Chemical Engineering Science due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2019, it was in position 35/143, thus managing to position itself as a Q1 (Primer Cuartil), in the category Engineering, Chemical.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations from Scopus Elsevier, it yields a value for the Field-Weighted Citation Impact from the Scopus agency: 1.02, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 13, 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-12-19, the following number of citations:

  • WoS: 8
  • Scopus: 25
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-12-19:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 68 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/86056/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 151
  • Downloads: 2
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Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (DIAZ MORENO, FRANCISCO ISMAEL) and Last Author (GONZALEZ MIQUEL, MARIA).

the author responsible for correspondence tasks has been DIAZ MORENO, FRANCISCO ISMAEL.

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Awards linked to the item

The authors are grateful to the Comunidad de Madrid (project S2013-MAE-2800) for financial support.
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