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Simultaneous representation of thermodynamic properties and viscosities of ILs/DESs+co-solvent systems by Eyring-NRTL model
State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China.ORCID iD: 0000-0002-5633-4312
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science. State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China.ORCID iD: 0000-0002-3201-8323
State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0002-0200-9960
2021 (English)In: Fluid Phase Equilibria, ISSN 0378-3812, E-ISSN 1879-0224, Vol. 547, article id 113176Article in journal (Refereed) Published
Abstract [en]

In this work, the nonrandom two-liquid model (NRTL) was coupled with the Eyring's absolute rate theory (the Eyring-NRTL model), to study thermodynamic properties and viscosities simultaneously with one set of parameters, and ten non-aqueous mixtures containing ionic liquids (ILs)/deep eutectic solvents (DESs) were chosen in the study as the first step. In model parameterizing, three strategies were investigated, which were viscosity as the input only, enthalpy with/without vapor pressure as the inputs, and enthalpy and viscosity as inputs, respectively. The investigation shows that it is possible to represent thermodynamic and kinetic properties simultaneously. Furthermore, the viscosity can be predicted using the model with reasonable parameters determined from the excess enthalpy, and incorporating vapor pressures and limited viscosity data in parameterizing can further improve the model performance on the viscosity. For the first time, the thermodynamic model was coupled with the Eyring's theory to study the systems of (IL/DES + molecular solvent), how to obtain the model parameters was clarified, and the possibility and reliability of the used model in representing thermodynamic and kinetic properties were illustrated and discussed.

Place, publisher, year, edition, pages
Elsevier, 2021. Vol. 547, article id 113176
Keywords [en]
Eyring-NRTL, Ionic liquids, Deep eutectic solvents, Viscosity, Excess enthalpy
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-86449DOI: 10.1016/j.fluid.2021.113176ISI: 000696201300006Scopus ID: 2-s2.0-85111070100OAI: oai:DiVA.org:ltu-86449DiVA, id: diva2:1581766
Funder
Swedish Research Council
Note

Validerad;2021;Nivå 2;2021-07-26 (beamah);

Ytterligare forskningsfinansiärer: Joint Research Fund for Overseas Chinese Scholars and Scholars in Hong Kong and Macao Young Scholars (no. 21729601), the National Natural Science Foundation of China (no. 21838004)

Available from: 2021-07-26 Created: 2021-07-26 Last updated: 2022-11-30Bibliographically approved

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Zuo, ZhidaSun, YunhaoJi, Xiaoyan

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