High-pressure phase behavior of binary and ternary mixtures containing ionic liquid [C6-mim][Tf2N], dimethyl carbonate and carbon dioxide

Joon Yong Ahn; Byung Chul Lee; Jong Sung Lim; Ki Pung Yoo; Jeong Won Kang

doi:10.1016/j.fluid.2009.10.014

High-pressure phase behavior of binary and ternary mixtures containing ionic liquid [C₆-mim][Tf₂N], dimethyl carbonate and carbon dioxide

Joon Yong Ahn, Byung Chul Lee, Jong Sung Lim, Ki Pung Yoo, Jeong Won Kang

Department of Chemical and Biological Engineering

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

13 Citations (Scopus)

Abstract

High-pressure phase equilibrium data for the ternary mixtures consisting of room temperature ionic liquid, dimethyl carbonate (DMC) and carbon dioxide (CO₂) were measured using an equilibrium apparatus equipped with a variable-volume view cell. The ionic liquid studied in this work is 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [C₆-mim][Tf₂N]. Solubility data of carbon dioxide (CO₂) in the solvent mixtures of DMC and [C₆-mim][Tf₂N] with various compositions are presented at pressures up to about 7 MPa and at several temperatures between 303.15 and 333.15 K. The CO₂ solubility in the DMC + [C₆-mim][Tf₂N] solvent mixture decreased as the ionic liquid content in the mixture increased, compared at the same pressure and temperature. The equilibrium pressure increased with the increase of the content of ionic liquid in the solvent mixture.

Original language	English
Pages (from-to)	75-79
Number of pages	5
Journal	Fluid Phase Equilibria
Volume	290
Issue number	1-2
DOIs	https://doi.org/10.1016/j.fluid.2009.10.014
Publication status	Published - 2010 Mar 25

Keywords

Carbon dioxide
Dimethyl carbonate
Ionic liquid
Solubility
Supercritical

ASJC Scopus subject areas

Chemical Engineering(all)
Physics and Astronomy(all)
Physical and Theoretical Chemistry

Access to Document

10.1016/j.fluid.2009.10.014

Cite this

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title = "High-pressure phase behavior of binary and ternary mixtures containing ionic liquid [C6-mim][Tf2N], dimethyl carbonate and carbon dioxide",

abstract = "High-pressure phase equilibrium data for the ternary mixtures consisting of room temperature ionic liquid, dimethyl carbonate (DMC) and carbon dioxide (CO2) were measured using an equilibrium apparatus equipped with a variable-volume view cell. The ionic liquid studied in this work is 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [C6-mim][Tf2N]. Solubility data of carbon dioxide (CO2) in the solvent mixtures of DMC and [C6-mim][Tf2N] with various compositions are presented at pressures up to about 7 MPa and at several temperatures between 303.15 and 333.15 K. The CO2 solubility in the DMC + [C6-mim][Tf2N] solvent mixture decreased as the ionic liquid content in the mixture increased, compared at the same pressure and temperature. The equilibrium pressure increased with the increase of the content of ionic liquid in the solvent mixture.",

keywords = "Carbon dioxide, Dimethyl carbonate, Ionic liquid, Solubility, Supercritical",

author = "Ahn, {Joon Yong} and Lee, {Byung Chul} and Lim, {Jong Sung} and Yoo, {Ki Pung} and Kang, {Jeong Won}",

year = "2010",

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doi = "10.1016/j.fluid.2009.10.014",

language = "English",

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AU - Ahn, Joon Yong

AU - Lee, Byung Chul

AU - Lim, Jong Sung

AU - Yoo, Ki Pung

AU - Kang, Jeong Won

PY - 2010/3/25

Y1 - 2010/3/25

N2 - High-pressure phase equilibrium data for the ternary mixtures consisting of room temperature ionic liquid, dimethyl carbonate (DMC) and carbon dioxide (CO2) were measured using an equilibrium apparatus equipped with a variable-volume view cell. The ionic liquid studied in this work is 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [C6-mim][Tf2N]. Solubility data of carbon dioxide (CO2) in the solvent mixtures of DMC and [C6-mim][Tf2N] with various compositions are presented at pressures up to about 7 MPa and at several temperatures between 303.15 and 333.15 K. The CO2 solubility in the DMC + [C6-mim][Tf2N] solvent mixture decreased as the ionic liquid content in the mixture increased, compared at the same pressure and temperature. The equilibrium pressure increased with the increase of the content of ionic liquid in the solvent mixture.

AB - High-pressure phase equilibrium data for the ternary mixtures consisting of room temperature ionic liquid, dimethyl carbonate (DMC) and carbon dioxide (CO2) were measured using an equilibrium apparatus equipped with a variable-volume view cell. The ionic liquid studied in this work is 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [C6-mim][Tf2N]. Solubility data of carbon dioxide (CO2) in the solvent mixtures of DMC and [C6-mim][Tf2N] with various compositions are presented at pressures up to about 7 MPa and at several temperatures between 303.15 and 333.15 K. The CO2 solubility in the DMC + [C6-mim][Tf2N] solvent mixture decreased as the ionic liquid content in the mixture increased, compared at the same pressure and temperature. The equilibrium pressure increased with the increase of the content of ionic liquid in the solvent mixture.

KW - Carbon dioxide

KW - Dimethyl carbonate

KW - Ionic liquid

KW - Solubility

KW - Supercritical

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