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Gas drying using [EMIM][MeSO3] supported on silica gel in fixed-bed : study on process behavior, mass transport and modeling

Title data

Radakovitsch, Florian ; Jess, Andreas:
Gas drying using [EMIM][MeSO3] supported on silica gel in fixed-bed : study on process behavior, mass transport and modeling.
In: Chemical Engineering Journal. (2021) . - No. 132129.
ISSN 1385-8947
DOI: https://doi.org/10.1016/j.cej.2021.132129

Abstract in another language

Gas drying experiments in fixed-bed setup using a supported ionic liquid phase (SILP) material, here the ionic liquid (IL) [EMIM][MeSO3] coated on silica gel 150, revealed a high drying performance and dew points of less than -68 °C in the dried gas stream. For modelling, the linear driving force (LDF) approach was used. The mass transfer in pure silica gel and the coatings with (about) an IL monolayer can be described similarly to conventional adsorbents. For multilayers of IL, the behavior differs as the pores get filled with an IL/H2O mixture, reducing the volume fraction for transport in vapor/gas phase. Also, the composition of the supported liquid phase changes significantly. By fitting an equation that considers a linear decrease of the mass transport coefficient with increasing degree of total pore filling, kinetic parameters with high accuracy were gained. A scale-up simulation demonstrated that the favorable SILP material is able to dry about 80% more gas volume than a conventional drying agent, corroborating the high potential of this SILP system for gas drying.

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
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: 04 Nov 2021 09:33
Last Modified: 04 Nov 2021 09:33
URI: https://eref.uni-bayreuth.de/id/eprint/67669