Abstract
For the halide-free imidazolium-based ionic liquids with a methanesulfonate anion, the solubility results of carbon dioxide (CO2) are presented at pressures up to approximately 45 MPa and temperatures ranging from 303.15 K to 343.15 K. The solubility was determined by measuring bubble pressures of mixtures of CO2 and ionic liquid using a high-pressure equilibrium apparatus equipped with a variable-volume view cell. The ionic liquids studied in this work were 1,3-dibutylimidazolium methanesulfonate, 1-ethyl-3- methylimidazolium methanesulfonate, 1-butyl-3-methylimidazolium methanesulfonate, and 1,3-dimethylimidazolium methanesulfonate. A sharp increase of equilibrium pressure was observed at high CO2 compositions. In ionic liquids, the CO2 solubility was elevated according to the increase of the total length of alkyl chains linked to the imidazole of the ionic liquids, and this increase became more apparent at higher pressures. The ionic liquids with a methanesulfonate anion gave a lower CO2 solubility than the ionic liquids with a fluorinated substituent such a fluoroalkyl group on their anions.
| Original language | English |
|---|---|
| Pages (from-to) | 3321-3329 |
| Number of pages | 9 |
| Journal | Journal of Chemical and Engineering Data |
| Volume | 57 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2012 Dec 13 |
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ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
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Solubility of carbon dioxide in imidazolium-based ionic liquids with a methanesulfonate anion. / Jung, Yun Ho; Jung, Jun Young; Jin, Yu Ran; Lee, Byung Chul; Baek, Il Hyun; Kim, Sung Hyun.
In: Journal of Chemical and Engineering Data, Vol. 57, No. 12, 13.12.2012, p. 3321-3329.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Solubility of carbon dioxide in imidazolium-based ionic liquids with a methanesulfonate anion
AU - Jung, Yun Ho
AU - Jung, Jun Young
AU - Jin, Yu Ran
AU - Lee, Byung Chul
AU - Baek, Il Hyun
AU - Kim, Sung Hyun
PY - 2012/12/13
Y1 - 2012/12/13
N2 - For the halide-free imidazolium-based ionic liquids with a methanesulfonate anion, the solubility results of carbon dioxide (CO2) are presented at pressures up to approximately 45 MPa and temperatures ranging from 303.15 K to 343.15 K. The solubility was determined by measuring bubble pressures of mixtures of CO2 and ionic liquid using a high-pressure equilibrium apparatus equipped with a variable-volume view cell. The ionic liquids studied in this work were 1,3-dibutylimidazolium methanesulfonate, 1-ethyl-3- methylimidazolium methanesulfonate, 1-butyl-3-methylimidazolium methanesulfonate, and 1,3-dimethylimidazolium methanesulfonate. A sharp increase of equilibrium pressure was observed at high CO2 compositions. In ionic liquids, the CO2 solubility was elevated according to the increase of the total length of alkyl chains linked to the imidazole of the ionic liquids, and this increase became more apparent at higher pressures. The ionic liquids with a methanesulfonate anion gave a lower CO2 solubility than the ionic liquids with a fluorinated substituent such a fluoroalkyl group on their anions.
AB - For the halide-free imidazolium-based ionic liquids with a methanesulfonate anion, the solubility results of carbon dioxide (CO2) are presented at pressures up to approximately 45 MPa and temperatures ranging from 303.15 K to 343.15 K. The solubility was determined by measuring bubble pressures of mixtures of CO2 and ionic liquid using a high-pressure equilibrium apparatus equipped with a variable-volume view cell. The ionic liquids studied in this work were 1,3-dibutylimidazolium methanesulfonate, 1-ethyl-3- methylimidazolium methanesulfonate, 1-butyl-3-methylimidazolium methanesulfonate, and 1,3-dimethylimidazolium methanesulfonate. A sharp increase of equilibrium pressure was observed at high CO2 compositions. In ionic liquids, the CO2 solubility was elevated according to the increase of the total length of alkyl chains linked to the imidazole of the ionic liquids, and this increase became more apparent at higher pressures. The ionic liquids with a methanesulfonate anion gave a lower CO2 solubility than the ionic liquids with a fluorinated substituent such a fluoroalkyl group on their anions.
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U2 - 10.1021/je3001377
DO - 10.1021/je3001377
M3 - Article
VL - 57
SP - 3321
EP - 3329
JO - Journal of Chemical and Engineering Data
JF - Journal of Chemical and Engineering Data
SN - 0021-9568
IS - 12
ER -