High-Pressure Vapor-Liquid Equilibria of 1-Alkyl-1-Methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Ionic Liquids and CO 2

Turnaoglu, Tugba; Minnick, David L.; Morais, Ana Rita C.; Baek, Donna L.; Fox, Robert V.; Scurto, Aaron M.; Shiflett, Mark B.

doi:10.1021/acs.jced.8b01236

Title: High-Pressure Vapor-Liquid Equilibria of 1-Alkyl-1-Methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Ionic Liquids and CO ₂

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Abstract

The high-pressure vapor-liquid equilibrium for the binary systems of carbon dioxide (CO₂) and a series of 1-alkyl-1-methyl pyrrolidinium bis(trifluoromethylsulfonyl)amide ionic liquids ([C_nC₁pyr][NTf₂] (n = 3,4,6)) are reported at 298.15, 318.15 and 338.15 K and at pressures up to 20 MPa. Experiments were conducted using gravimetric (IGA and XEMIS microbalances) and a volumetric method (high-pressure view cell). The solubility of CO₂ in pyrrolidinium ionic liquids increases with decreasing temperature and increasing pressure. The CO₂ solubility also slightly increases with increase in alkyl chain length on the pyrrolidinium cation. Molar volume and volume expansion of CO₂ + IL mixtures are also reported. The Fickian diffusion of CO₂ in pyrrolidinium based ionic liquids (~10^-10 m²·s^-1) was calculated at pressures of up to 2 MPa and found to be at the same order of magnitude but slightly lower than the diffusivity of CO₂ in imidazolium based ionic liquid with the [NTf₂] anion.

Authors:

^[1]; Minnick, David L. ^[1]; Morais, Ana Rita C. ^[1]; Baek, Donna L. ^[2];

^[2];

^[3];

^[3]

Univ. of Kansas, Lawrence, KS (United States). Dept. of Chemical and Petroleum Engineering
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Univ. of Kansas, Lawrence, KS (United States). Dept. of Chemical and Petroleum Engineering, and Center for Environmentally Beneficial Catalysis

Publication Date:: Fri Apr 19 00:00:00 EDT 2019

Research Org.:: Idaho National Lab. (INL), Idaho Falls, ID (United States)

Sponsoring Org.:: USDOE Office of Nuclear Energy (NE)

OSTI Identifier:: 1567698

Report Number(s):: INL/JOU-18-52345-Rev001
Journal ID: ISSN 0021-9568; TRN: US2001047

Grant/Contract Number:: DE-AC07-05ID14517

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Chemical and Engineering Data

Additional Journal Information:: Journal Volume: -; Journal Issue: -; Journal ID: ISSN 0021-9568

Publisher:: American Chemical Society

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; carbon dioxide; ionic liquid

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                    Turnaoglu, Tugba, Minnick, David L., Morais, Ana Rita C., Baek, Donna L., Fox, Robert V., Scurto, Aaron M., and Shiflett, Mark B. High-Pressure Vapor-Liquid Equilibria of 1-Alkyl-1-Methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Ionic Liquids and CO 2.  United States: N. p., 2019. 
Web.  doi:10.1021/acs.jced.8b01236.

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                    Turnaoglu, Tugba, Minnick, David L., Morais, Ana Rita C., Baek, Donna L., Fox, Robert V., Scurto, Aaron M., & Shiflett, Mark B. High-Pressure Vapor-Liquid Equilibria of 1-Alkyl-1-Methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Ionic Liquids and CO 2.  United States.  https://doi.org/10.1021/acs.jced.8b01236

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                    Turnaoglu, Tugba, Minnick, David L., Morais, Ana Rita C., Baek, Donna L., Fox, Robert V., Scurto, Aaron M., and Shiflett, Mark B. Fri .  
"High-Pressure Vapor-Liquid Equilibria of 1-Alkyl-1-Methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Ionic Liquids and CO 2".  United States.  https://doi.org/10.1021/acs.jced.8b01236.  https://www.osti.gov/servlets/purl/1567698.

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@article{osti_1567698,

  title        = {High-Pressure Vapor-Liquid Equilibria of 1-Alkyl-1-Methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Ionic Liquids and CO 2},

  author       = {Turnaoglu, Tugba and Minnick, David L. and Morais, Ana Rita C. and Baek, Donna L. and Fox, Robert V. and Scurto, Aaron M. and Shiflett, Mark B.},

  abstractNote = {The high-pressure vapor-liquid equilibrium for the binary systems of carbon dioxide (CO2) and a series of 1-alkyl-1-methyl pyrrolidinium bis(trifluoromethylsulfonyl)amide ionic liquids ([CnC1pyr][NTf2] (n = 3,4,6)) are reported at 298.15, 318.15 and 338.15 K and at pressures up to 20 MPa. Experiments were conducted using gravimetric (IGA and XEMIS microbalances) and a volumetric method (high-pressure view cell). The solubility of CO2 in pyrrolidinium ionic liquids increases with decreasing temperature and increasing pressure. The CO2 solubility also slightly increases with increase in alkyl chain length on the pyrrolidinium cation. Molar volume and volume expansion of CO2 + IL mixtures are also reported. The Fickian diffusion of CO2 in pyrrolidinium based ionic liquids (~10-10 m2·s-1) was calculated at pressures of up to 2 MPa and found to be at the same order of magnitude but slightly lower than the diffusivity of CO2 in imidazolium based ionic liquid with the [NTf2] anion.},

  doi          = {10.1021/acs.jced.8b01236},

  journal      = {Journal of Chemical and Engineering Data},

  number       = -,

  volume       = -,

  place        = {United States},

  year         = {Fri Apr 19 00:00:00 EDT 2019},

  month        = {Fri Apr 19 00:00:00 EDT 2019}

}

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Title: High-Pressure Vapor-Liquid Equilibria of 1-Alkyl-1-Methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Ionic Liquids and CO 2

Abstract

Citation Formats

Title: High-Pressure Vapor-Liquid Equilibria of 1-Alkyl-1-Methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Ionic Liquids and CO ₂