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Characterization of Six Hygroscopic Ionic Liquids with Regard to Their Suitability for Gas Dehydration : Density, Viscosity, Thermal and Oxidative Stability, Vapor Pressure, Diffusion Coefficient, and Activity Coefficient of Water

Title data

Krannich, Michel ; Heym, Florian ; Jess, Andreas:
Characterization of Six Hygroscopic Ionic Liquids with Regard to Their Suitability for Gas Dehydration : Density, Viscosity, Thermal and Oxidative Stability, Vapor Pressure, Diffusion Coefficient, and Activity Coefficient of Water.
In: Journal of Chemical & Engineering Data. Vol. 61 (2016) Issue 3 . - pp. 1162-1176.
ISSN 1520-5134
DOI: https://doi.org/10.1021/acs.jced.5b00806

Abstract in another language

Six hygroscopic ionic liquids (ILs), [DMIM][DMPO4], [EMIM][MeSO3], [EMIM][EtSO4], [EMIM][Et(EG)2SO4], [BMIM][BF4], and [choline][glycolate], were investigated with regard to their suitability as a drying agent for technical gas dehydration processes by absorption. Therefore, the density, viscosity, activity coefficient of water in the ILs, and the kinetic parameters of thermal and oxidative degradation were measured (if the respective values were not already reported in the literature). [EMIM][MeSO3] proved to be the most suitable candidate for industrial gas dehydration. This IL has a low activity coefficient, a high thermal and oxidation stability, an acceptably low viscosity as well as a very low vapor pressure. Thus, the influence of temperature on the activity coefficient of water and the diffusivity of water in this IL was also determined.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Chemical Engineering
Faculties > Faculty of Engineering Science > Chair Chemical Engineering > Chair Chemical Engineering - Univ.-Prof. Dr.-Ing. Andreas Jess
Faculties
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
600 Technology, medicine, applied sciences > 600 Technology
600 Technology, medicine, applied sciences > 620 Engineering
600 Technology, medicine, applied sciences > 660 Chemical engineering
Date Deposited: 30 Mar 2016 08:26
Last Modified: 30 Mar 2016 08:26
URI: https://eref.uni-bayreuth.de/id/eprint/32061