Thermodynamic inhibition effects of ionic liquids on the formation of condensed carbon dioxide hydrate
Cited 0 times inCited 0 times in
- Thermodynamic inhibition effects of ionic liquids on the formation of condensed carbon dioxide hydrate
- Shin, Byeong Soo; Kim, Eun Sung; Kwak, Sang Kyu; Lim, Jong Sung; Kim, Ki-Sub; Kang, Jeong Won
- Issue Date
- ELSEVIER SCIENCE BV
- FLUID PHASE EQUILIBRIA, v.382, no.1, pp.270 - 278
- Ionic liquids (ILs) have been proposed as potential inhibitors for preventing gas hydrate formation because their ion pairs effectively interrupt the hydrogen bonding between water molecules. ILs also have broad inhibitory capabilities depending on the specific cation and anion combinations. The final structural design of ILs for hydrate inhibition must be performed after an inhibition mechanism is suggested. In this study, the inhibitory thermodynamic effects of ILs were measured by the hydrate-aqueous liquid-liquid carbon dioxide (CO2) equilibrium, and the experimental results were analyzed based on the hydration free energy of ILs calculated through molecular dynamics study. 1-Hydroxyethyl-1-methylpyrrolidinum chloride showed the best inhibitory performance of the suggested candidates. The anions mostly contributed to the thermodynamic inhibition, but the cations had a marginal impact on CO2 hydrate inhibition. Through fundamental understanding of the inhibition mechanism by both experimental and computational approaches, it is highly possible to provide crucial information for effective ILs to be designed as the CO2 hydrate inhibitor.
- Appears in Collections:
- ECHE_Journal Papers
- Files in This Item:
- There are no files associated with this item.
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.