Phase behavior of the ternary 1-hexyl-3-methylimidazolium tetrafluoroborate + carbon dioxide + methanol system

M.C. Kroon; L.J. Florusse; C.J. Peters

doi:10.1016/j.fluid.2010.02.005

Phase behavior of the ternary 1-hexyl-3-methylimidazolium tetrafluoroborate + carbon dioxide + methanol system

M.C. Kroon, L.J. Florusse, C.J. Peters

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

The phase behavior of the ternary system consisting of the ionic liquid (IL) 1-hexyl-3-methylimidazolium tetrafluoroborate ([hmim+][BF4-]) + carbon dioxide (CO2) + methanol is studied experimentally using the Cailletet apparatus. Experimental data for all phase transitions within a temperature range of 254.64–348.17 K, a pressure range of 2.102–13.189 MPa and a CO2 fraction range of 40.20–69.98 mol% are collected, while the ratio [hmim+][BF4-]:methanol is kept constant at 1:19. Only at CO2 concentrations between 66.47 and 68.04% the usual ‘two-phase’–‘three-phase’–‘two-phase’–‘one-phase’ transition upon CO2 pressure increase is found. At lower and higher CO2 fractions, the number of phase transitions observed is lower. All observed phase transitions do not involve criticality

Original language	English
Pages (from-to)	84-88
Number of pages	5
Journal	Fluid Phase Equilibria
Volume	294
Issue number	1-2
DOIs	https://doi.org/10.1016/j.fluid.2010.02.005
Publication status	Published - 2010

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title = "Phase behavior of the ternary 1-hexyl-3-methylimidazolium tetrafluoroborate + carbon dioxide + methanol system",

abstract = "The phase behavior of the ternary system consisting of the ionic liquid (IL) 1-hexyl-3-methylimidazolium tetrafluoroborate ([hmim+][BF4-]) + carbon dioxide (CO2) + methanol is studied experimentally using the Cailletet apparatus. Experimental data for all phase transitions within a temperature range of 254.64–348.17 K, a pressure range of 2.102–13.189 MPa and a CO2 fraction range of 40.20–69.98 mol% are collected, while the ratio [hmim+][BF4-]:methanol is kept constant at 1:19. Only at CO2 concentrations between 66.47 and 68.04% the usual {\textquoteleft}two-phase{\textquoteright}–{\textquoteleft}three-phase{\textquoteright}–{\textquoteleft}two-phase{\textquoteright}–{\textquoteleft}one-phase{\textquoteright} transition upon CO2 pressure increase is found. At lower and higher CO2 fractions, the number of phase transitions observed is lower. All observed phase transitions do not involve criticality",

author = "M.C. Kroon and L.J. Florusse and C.J. Peters",

year = "2010",

doi = "10.1016/j.fluid.2010.02.005",

language = "English",

volume = "294",

pages = "84--88",

journal = "Fluid Phase Equilibria",

issn = "0378-3812",

publisher = "Elsevier B.V.",

number = "1-2",

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TY - JOUR

T1 - Phase behavior of the ternary 1-hexyl-3-methylimidazolium tetrafluoroborate + carbon dioxide + methanol system

AU - Kroon, M.C.

AU - Florusse, L.J.

AU - Peters, C.J.

PY - 2010

Y1 - 2010

N2 - The phase behavior of the ternary system consisting of the ionic liquid (IL) 1-hexyl-3-methylimidazolium tetrafluoroborate ([hmim+][BF4-]) + carbon dioxide (CO2) + methanol is studied experimentally using the Cailletet apparatus. Experimental data for all phase transitions within a temperature range of 254.64–348.17 K, a pressure range of 2.102–13.189 MPa and a CO2 fraction range of 40.20–69.98 mol% are collected, while the ratio [hmim+][BF4-]:methanol is kept constant at 1:19. Only at CO2 concentrations between 66.47 and 68.04% the usual ‘two-phase’–‘three-phase’–‘two-phase’–‘one-phase’ transition upon CO2 pressure increase is found. At lower and higher CO2 fractions, the number of phase transitions observed is lower. All observed phase transitions do not involve criticality

AB - The phase behavior of the ternary system consisting of the ionic liquid (IL) 1-hexyl-3-methylimidazolium tetrafluoroborate ([hmim+][BF4-]) + carbon dioxide (CO2) + methanol is studied experimentally using the Cailletet apparatus. Experimental data for all phase transitions within a temperature range of 254.64–348.17 K, a pressure range of 2.102–13.189 MPa and a CO2 fraction range of 40.20–69.98 mol% are collected, while the ratio [hmim+][BF4-]:methanol is kept constant at 1:19. Only at CO2 concentrations between 66.47 and 68.04% the usual ‘two-phase’–‘three-phase’–‘two-phase’–‘one-phase’ transition upon CO2 pressure increase is found. At lower and higher CO2 fractions, the number of phase transitions observed is lower. All observed phase transitions do not involve criticality

U2 - 10.1016/j.fluid.2010.02.005

DO - 10.1016/j.fluid.2010.02.005

M3 - Article

SN - 0378-3812

VL - 294

SP - 84

EP - 88

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

IS - 1-2

ER -

Phase behavior of the ternary 1-hexyl-3-methylimidazolium tetrafluoroborate + carbon dioxide + methanol system

Abstract

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