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Enhanced CO2 Separation Selectivity in Oligo(ethylene glycol) Functionalized Room-Temperature Ionic Liquids
Abstract
Novel imidazolium-based room-temperature ionic liquids (RTILs) with one, two, or three oligo(ethylene glycol) substituents were synthesized. Solubilities and ideal solubility selectivities of CO 2, N 2, and CH 4 at low pressure (1 atm) in these RTILs were determined using a pressure decay technique. Comparison to corresponding alkyl analogues of these RTILs reveals similar levels of CO 2 solubility but lower solubilities of N 2 and CH 4 . As a consequence, RTILs with oligo(ethylene glycol) substituents were observed to have 30−75% higher ideal solubility selectivities for CO 2 /N 2 and CO 2 /CH 4 .
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H. Davis, J. (2004) · Chemistry Letters · doi:10.1246/cl.2004.1072 · Cited by 1,053
Allcock (1996) · doi:10.1021/ma960592z · Cited by 113
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Metadata
- Authors
- Bara, J. E., Gabriel, C. J., Lessmann, S., Carlisle, T. K., Finotello, A., Gin, D. L., & Noble, R. D.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-07-06
- Volume
- 46
- Issue
- 16
- Pages
- 5380-5386
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2077012532
- Cited by
- 246
- References
- 2
- FWCI
- 4.89
- Type
- journal article
- Language
- en
- Open access
- closed
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- Bara, J. E., Gabriel, C. J., Lessmann, S., Carlisle, T. K., Finotello, A., Gin, D. L., & Noble, R. D. (2007). Enhanced CO2 Separation Selectivity in Oligo(ethylene glycol) Functionalized Room-Temperature Ionic Liquids. Industrial & Engineering Chemistry Research. https://doi.org/10.1021/ie070437g
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