Solubility of carbon dioxide in the low-viscosity ionic liquid 1-hexyl-3-methylimidazolium tetracyanoborate

M.T. Mota Martinez; M.A.M. Althuluth; M.C. Kroon; C.J. Peters

doi:10.1016/j.fluid.2012.06.014

Solubility of carbon dioxide in the low-viscosity ionic liquid 1-hexyl-3-methylimidazolium tetracyanoborate

M.T. Mota Martinez, M.A.M. Althuluth, M.C. Kroon, C.J. Peters

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Abstract

The solubility of carbon dioxide (CO2) in a new low-viscosity and non-fluorinated ionic liquid, 1-hexyl-3-methylimidazolium tetracyanoborate ([hmim][TCB]), has been studied experimentally using a synthetic method. Bubble point pressures (up to 12.34 MPa) of the system CO2 + [hmim][TCB] are reported for CO2 concentrations ranging from 10.09 to 70.16 mol% and within a temperature range of 283.56–364.04 K. The experimental values of the density, the viscosity and the surface tension of [hmim][TCB] are also reported. The results obtained are compared to available CO2 solubility data and physicochemical properties of other 1-hexyl-3-methylimidazolium based ionic liquids in order to study the effect of the type of anion. It is found that [hmim][TCB] shows higher CO2 absorptive capacity (higher solubility) as well as faster CO2 mass transfer kinetics (lower viscosity), which makes this ionic liquid an attractive solvent for gas separation processes

Original language	English
Pages (from-to)	35-39
Journal	Fluid Phase Equilibria
Volume	332
DOIs	https://doi.org/10.1016/j.fluid.2012.06.014
Publication status	Published - 2012

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10.1016/j.fluid.2012.06.014

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@article{8eb927ae92454372be1e6f55f751fdae,

title = "Solubility of carbon dioxide in the low-viscosity ionic liquid 1-hexyl-3-methylimidazolium tetracyanoborate",

abstract = "The solubility of carbon dioxide (CO2) in a new low-viscosity and non-fluorinated ionic liquid, 1-hexyl-3-methylimidazolium tetracyanoborate ([hmim][TCB]), has been studied experimentally using a synthetic method. Bubble point pressures (up to 12.34 MPa) of the system CO2 + [hmim][TCB] are reported for CO2 concentrations ranging from 10.09 to 70.16 mol% and within a temperature range of 283.56–364.04 K. The experimental values of the density, the viscosity and the surface tension of [hmim][TCB] are also reported. The results obtained are compared to available CO2 solubility data and physicochemical properties of other 1-hexyl-3-methylimidazolium based ionic liquids in order to study the effect of the type of anion. It is found that [hmim][TCB] shows higher CO2 absorptive capacity (higher solubility) as well as faster CO2 mass transfer kinetics (lower viscosity), which makes this ionic liquid an attractive solvent for gas separation processes",

author = "{Mota Martinez}, M.T. and M.A.M. Althuluth and M.C. Kroon and C.J. Peters",

year = "2012",

doi = "10.1016/j.fluid.2012.06.014",

language = "English",

volume = "332",

pages = "35--39",

journal = "Fluid Phase Equilibria",

issn = "0378-3812",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Solubility of carbon dioxide in the low-viscosity ionic liquid 1-hexyl-3-methylimidazolium tetracyanoborate

AU - Mota Martinez, M.T.

AU - Althuluth, M.A.M.

AU - Kroon, M.C.

AU - Peters, C.J.

PY - 2012

Y1 - 2012

N2 - The solubility of carbon dioxide (CO2) in a new low-viscosity and non-fluorinated ionic liquid, 1-hexyl-3-methylimidazolium tetracyanoborate ([hmim][TCB]), has been studied experimentally using a synthetic method. Bubble point pressures (up to 12.34 MPa) of the system CO2 + [hmim][TCB] are reported for CO2 concentrations ranging from 10.09 to 70.16 mol% and within a temperature range of 283.56–364.04 K. The experimental values of the density, the viscosity and the surface tension of [hmim][TCB] are also reported. The results obtained are compared to available CO2 solubility data and physicochemical properties of other 1-hexyl-3-methylimidazolium based ionic liquids in order to study the effect of the type of anion. It is found that [hmim][TCB] shows higher CO2 absorptive capacity (higher solubility) as well as faster CO2 mass transfer kinetics (lower viscosity), which makes this ionic liquid an attractive solvent for gas separation processes

AB - The solubility of carbon dioxide (CO2) in a new low-viscosity and non-fluorinated ionic liquid, 1-hexyl-3-methylimidazolium tetracyanoborate ([hmim][TCB]), has been studied experimentally using a synthetic method. Bubble point pressures (up to 12.34 MPa) of the system CO2 + [hmim][TCB] are reported for CO2 concentrations ranging from 10.09 to 70.16 mol% and within a temperature range of 283.56–364.04 K. The experimental values of the density, the viscosity and the surface tension of [hmim][TCB] are also reported. The results obtained are compared to available CO2 solubility data and physicochemical properties of other 1-hexyl-3-methylimidazolium based ionic liquids in order to study the effect of the type of anion. It is found that [hmim][TCB] shows higher CO2 absorptive capacity (higher solubility) as well as faster CO2 mass transfer kinetics (lower viscosity), which makes this ionic liquid an attractive solvent for gas separation processes

U2 - 10.1016/j.fluid.2012.06.014

DO - 10.1016/j.fluid.2012.06.014

M3 - Article

SN - 0378-3812

VL - 332

SP - 35

EP - 39

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

ER -

Solubility of carbon dioxide in the low-viscosity ionic liquid 1-hexyl-3-methylimidazolium tetracyanoborate

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