High-pressure phase behavior of systems with ionic liquids: Part V. The binary system carbon dioxide+1-butyl-3-methylimidazolium tetrafluoroborate

M.C. Kroon, A. Shariati - Sarabi, M. Costantini, J. Spronsen, van, G.J. Witkamp, R.A. Sheldon, C.J. Peters

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Abstract

The phase behavior of the binary system consisting of the supercritical fluid carbon dioxide (CO2) and the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) was studied experimentally. A synthetic method was used to measure its phase behavior. Bubble-point pressures of the system CO2 + [bmim][BF4] are reported for carbon dioxide concentrations ranging from (10.22 to 60.17) mole % and within a temperature range of (278.47 to 368.22) K. The CO2 + [bmim][BF4] binary system has a two-phase liquid-vapor region extending up to very high pressures. Most likely, the type of fluid-phase behavior is type III according to the classification of Scott and Van Konynenburg. The experimental results obtained were compared with the available phase behavior data of the binary system CO2 + 1-hexyl-3-methylimidazolium tetrafluoroborate ([hmim][BF4]) to investigate the effect of the length of the alkyl group on the phase behavior of this type of system. A larger alkyl group leads to lower bubble-point pressures and, therefore, to higher solubilities of carbon dioxide in the imidazolium-based ionic liquid
LanguageEnglish
Pages173-176
Number of pages4
JournalJournal of Chemical and Engineering Data
Volume50
Issue number1
DOIs
StatePublished - 2005

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Ionic Liquids
Phase behavior
Ionic liquids
Carbon Dioxide
Carbon dioxide
Supercritical fluids
Solubility
Vapors
1-butyl-3-methylimidazolium tetrafluoroborate
Fluids
Liquids

Cite this

Kroon, M.C. ; Shariati - Sarabi, A. ; Costantini, M. ; Spronsen, van, J. ; Witkamp, G.J. ; Sheldon, R.A. ; Peters, C.J./ High-pressure phase behavior of systems with ionic liquids: Part V. The binary system carbon dioxide+1-butyl-3-methylimidazolium tetrafluoroborate. In: Journal of Chemical and Engineering Data. 2005 ; Vol. 50, No. 1. pp. 173-176
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title = "High-pressure phase behavior of systems with ionic liquids: Part V. The binary system carbon dioxide+1-butyl-3-methylimidazolium tetrafluoroborate",
abstract = "The phase behavior of the binary system consisting of the supercritical fluid carbon dioxide (CO2) and the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) was studied experimentally. A synthetic method was used to measure its phase behavior. Bubble-point pressures of the system CO2 + [bmim][BF4] are reported for carbon dioxide concentrations ranging from (10.22 to 60.17) mole {\%} and within a temperature range of (278.47 to 368.22) K. The CO2 + [bmim][BF4] binary system has a two-phase liquid-vapor region extending up to very high pressures. Most likely, the type of fluid-phase behavior is type III according to the classification of Scott and Van Konynenburg. The experimental results obtained were compared with the available phase behavior data of the binary system CO2 + 1-hexyl-3-methylimidazolium tetrafluoroborate ([hmim][BF4]) to investigate the effect of the length of the alkyl group on the phase behavior of this type of system. A larger alkyl group leads to lower bubble-point pressures and, therefore, to higher solubilities of carbon dioxide in the imidazolium-based ionic liquid",
author = "M.C. Kroon and {Shariati - Sarabi}, A. and M. Costantini and {Spronsen, van}, J. and G.J. Witkamp and R.A. Sheldon and C.J. Peters",
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High-pressure phase behavior of systems with ionic liquids: Part V. The binary system carbon dioxide+1-butyl-3-methylimidazolium tetrafluoroborate. / Kroon, M.C.; Shariati - Sarabi, A.; Costantini, M.; Spronsen, van, J.; Witkamp, G.J.; Sheldon, R.A.; Peters, C.J.

In: Journal of Chemical and Engineering Data, Vol. 50, No. 1, 2005, p. 173-176.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - High-pressure phase behavior of systems with ionic liquids: Part V. The binary system carbon dioxide+1-butyl-3-methylimidazolium tetrafluoroborate

AU - Kroon,M.C.

AU - Shariati - Sarabi,A.

AU - Costantini,M.

AU - Spronsen, van,J.

AU - Witkamp,G.J.

AU - Sheldon,R.A.

AU - Peters,C.J.

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N2 - The phase behavior of the binary system consisting of the supercritical fluid carbon dioxide (CO2) and the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) was studied experimentally. A synthetic method was used to measure its phase behavior. Bubble-point pressures of the system CO2 + [bmim][BF4] are reported for carbon dioxide concentrations ranging from (10.22 to 60.17) mole % and within a temperature range of (278.47 to 368.22) K. The CO2 + [bmim][BF4] binary system has a two-phase liquid-vapor region extending up to very high pressures. Most likely, the type of fluid-phase behavior is type III according to the classification of Scott and Van Konynenburg. The experimental results obtained were compared with the available phase behavior data of the binary system CO2 + 1-hexyl-3-methylimidazolium tetrafluoroborate ([hmim][BF4]) to investigate the effect of the length of the alkyl group on the phase behavior of this type of system. A larger alkyl group leads to lower bubble-point pressures and, therefore, to higher solubilities of carbon dioxide in the imidazolium-based ionic liquid

AB - The phase behavior of the binary system consisting of the supercritical fluid carbon dioxide (CO2) and the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) was studied experimentally. A synthetic method was used to measure its phase behavior. Bubble-point pressures of the system CO2 + [bmim][BF4] are reported for carbon dioxide concentrations ranging from (10.22 to 60.17) mole % and within a temperature range of (278.47 to 368.22) K. The CO2 + [bmim][BF4] binary system has a two-phase liquid-vapor region extending up to very high pressures. Most likely, the type of fluid-phase behavior is type III according to the classification of Scott and Van Konynenburg. The experimental results obtained were compared with the available phase behavior data of the binary system CO2 + 1-hexyl-3-methylimidazolium tetrafluoroborate ([hmim][BF4]) to investigate the effect of the length of the alkyl group on the phase behavior of this type of system. A larger alkyl group leads to lower bubble-point pressures and, therefore, to higher solubilities of carbon dioxide in the imidazolium-based ionic liquid

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