Journal article
Development of a group contribution method for determination of viscosity of ionic liquids at atmospheric pressure
University of KwaZulu-Natal1
Mines Paris - PSL2
Center for Energy Resources Engineering, Centers, Technical University of Denmark3
Department of Chemical and Biochemical Engineering, Technical University of Denmark4
CERE – Center for Energy Ressources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark5
In this study, a wide literature survey has been carried out to collect an extensive set of liquid viscosity data for ionic liquids (ILs). A data set consisting of 1672 viscosity values and comprising 443 ILs was collated from 204 different literature sources. Using this data set, a reliable group contribution method has been developed.
The method employs a total of 46 sub-structures in addition to the temperature to predict the viscosity of ILs. In order to differentiate the effects of the anion and cation on the viscosity of ILs, 24 sub-structures related to the chemical structure of anions, and 22 sub-structures related to the chemical structure of cations were implemented.
The proposed model produces a low average relative deviation (AARD) of less than 6.4% taking into consideration all 1672 experimental data values.
| Language: | English |
|---|---|
| Year: | 2012 |
| Pages: | 326-333 |
| ISSN: | 18734405 and 00092509 |
| Types: | Journal article |
| DOI: | 10.1016/j.ces.2012.06.045 |
