CO2 Solubility and Physical Properties of Two Containing Fluorine Functional Ionic Liquids

Li Hua Fan; Ying Hua Liang; Yu Hong Li

doi:10.4028/www.scientific.net/AMR.785-786.827

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 785-786CO2 Solubility and Physical Properties of Two...

CO₂ Solubility and Physical Properties of Two Containing Fluorine Functional Ionic Liquids

Abstract:

Two containing fluorine functional ionic liquids (ILs) (1-aminoethyl-3-methyl imidazolium trifluoroacetic acid salt ([aemim] [CF₃COO]) and 1-aminoethyl-3-methyl imidazolium trifluoromethane sulfonic acid salt ([aemim] [TfO])) were synthesized and the samples were characterized by means of FTIR, ¹HNMR respectively. The densities, viscosities, and electrical conductivities of the two samples were measured over the temperature range T = (303.15-333.15) K at atmospheric pressure. The solubility of CO₂in the two samples were investigated at temperature from 303.15 to 333.15 K and pressure from 0 to 7.14 MPa. Results showed that the maximum solubility of CO₂ in [aemim] [TfO] was 0.759 (mole fraction) at 7.01 MPa and 323.15K, and the which of [aemim] [CF₃COO] was 0.646 at 6.49 MPa and 313.15 K. The influence of the temperature and CO₂ partial pressure on the process of CO₂absorption was discussed. The CO₂ solubilities in different ILs were also compared. The Henry's constants and infinite dilution partial molar volumes for the ILs+ CO₂ systems were obtained.

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Periodical:

Advanced Materials Research (Volumes 785-786)

Pages:

827-831

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.785-786.827

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September 2013

Authors:

Li Hua Fan, Ying Hua Liang, Yu Hong Li

Keywords:

CO₂ Solubility, Density, Electrical Conductivity, Functional Ionic Liquid, Viscosity

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