Continuous Gas Dehydration Using the Hygroscopic Ionic Liquid [EMIM][MeSO3] as a Promising Alternative Absorbent. Issue 2 (12th January 2016)

• Record Type: Journal Article
• Authors: Krannich, Michel; Heym, Florian; Jess, Andreas
• Is Part Of: Chemical engineering & technology. Volume 39:Issue 2(2016:Feb.)
• Page Start: 343
• Page End: 353
• Publication Date: 2016-01-12
• Subjects: Absorption -- Continuous gas drying -- Gas dehydration plant -- HTU/NTU model -- Ionic liquid; Chemical engineering -- Periodicals; Chemical processes -- Periodicals; 660.05
• DOI: 10.1002/ceat.201500588
• Languages: English
• ISSNs: 0930-7516

Abstract

Abstract: Continuous gas drying experiments with the hygroscopic ionic liquid [EMIM][MeSO3 ] show that it can be a very promising alternative drying agent to the absorbent triethylene glycol (TEG) commonly used in industrial gas drying processes. The HTU/NTU model in combination with the correlations of Onda et al. for mass transfer coefficients can be applied for the design of an absorption process with [EMIM][MeSO3 ]. The major advantage of this ionic liquid (IL) is that well‐known problems associated with the regeneration of the absorbent TEG can be avoided using [EMIM][MeSO3 ] due to extremely low vapor pressure and possible regeneration with air. The drying capacity of the IL system is about two times higher compared to TEG. Hence, a simple plant design comparable to that of industrial adsorption plants might be applied. Abstract : The hygroscopic ionic liquid (IL) [EMIM][MeSO3 ] can be an alternative drying agent to the absorbent triethylene glycol (TEG) commonly used in industrial processes. The disadvantages of TEG can be avoided with this IL. The drying capacity of the IL system is about two times higher compared to TEG. A simple plant design comparable to that of an industrial adsorption plant is possible.