The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.
Organic liquid CO2 capture agents with high gravimetric CO2 capacity
Abstract
We report a new class of CO2 binding organic liquids that chemically capture and release CO2 much more efficiently than aqueous alkanolamine systems. Mixtures of organic alcohols and amidine/guanidine bases reversibly bind CO2 chemically as liquid amidinium/guanidinium alkylcarbonates. The free energy of CO2 binding in these organic systems is very small and dependent on the choice of base, approximately −9 kJ mol−1 for DBU and Barton's base and +2 kJ mol−1 for 1,1,3,3-tetramethylguanidine. These CO2 capturing agents do not require an added solvent because they are liquid, and therefore have high CO2 capacities of up to 19% by weight for neat systems, and slightly less when dissolved in acetonitrile. The rate of CO2 uptake and release by these organic systems is limited by the rate of dissolution of CO2 into and out of the liquid phase. Gas absorption is selective for CO2 in both concentrated and dilute gas streams. These organic systems have been shown to bind and release CO2 for five cycles without losing activity or selectivity.
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Cites
CRC Handbook of Chemistry and Physics
(2014) · doi:10.1201/b17118 · Cited by 57,706
CO2 Capture by a Task-Specific Ionic Liquid
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Reversible nonpolar-to-polar solvent
Jessop, P. G., Heldebrant, D. J., Li, X., Eckert, C. A., & Liotta, C. L. (2005) · Nature · doi:10.1038/4361102a · Cited by 968
Self-citationKaljurand, I., Kütt, A., Sooväli, L., Rodima, T., Mäemets, V., Leito, I., & Koppel, I. A. (2005) · The Journal of Organic Chemistry · doi:10.1021/jo048252w · Cited by 962
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The Reaction of 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) with Carbon Dioxide
Heldebrant, D. J., Jessop, P. G., Thomas, C. A., Eckert, C. A., & Liotta, C. L. (2005) · The Journal of Organic Chemistry · doi:10.1021/jo0503759 · Cited by 350
Self-citationMunshi, P., Main, A. D., Linehan, J. C., Tai, C.-C., & Jessop, P. G. (2002) · Journal of the American Chemical Society · doi:10.1021/ja0167856 · Cited by 346
Self-citationEnhanced CO2 Absorption of Poly(ionic liquid)s
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Cited by
Carbon capture and storage (CCS): the way forward
Bui, M., Adjiman, C. S., Bardow, A., Anthony, E. J., Boston, A., Brown, S., Fennell, P. S., Fuss, S., Galindo, A., Hackett, L. A., et al. (2018) · Energy & Environmental Science · doi:10.1039/c7ee02342a · Cited by 4,374
Carbon capture and storage update
Boot-Handford, M. E., Abanades, J. C., Anthony, E. J., Blunt, M. J., Brandani, S., Mac Dowell, N., Fernández, J. R., Ferrari, M.-C., Gross, R., Hallett, J. P., et al. (2014) · Energy Environ. Sci. · doi:10.1039/c3ee42350f · Cited by 2,386
Green and sustainable solvents in chemical processes
Clarke, C. J., Tu, W.-C., Levers, O., Bröhl, A., & Hallett, J. P. (2018) · Chemical Reviews · doi:10.1021/acs.chemrev.7b00571 · Cited by 2,071
State-of-the-Art of CO2Capture with Ionic Liquids
Ramdin, M., de Loos, T. W., & Vlugt, T. J. H. (2012) · Industrial & Engineering Chemistry Research · doi:10.1021/ie3003705 · Cited by 1,073
Shah, M. S., Tsapatsis, M., & Siepmann, J. I. (2017) · Chemical Reviews · doi:10.1021/acs.chemrev.7b00095 · Cited by 600
Metadata
- Authors
- Heldebrant, D. J., Yonker, C. R., Jessop, P. G., & Phan, L.
- Venue
- Energy & Environmental Science
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2008
- ISSN
- 1754-5692 (ISSN-L)
- 1754-5706
- OpenAlex
- W2030597078
- Cited by
- 271
- References
- 18
- FWCI
- 15.65
- Type
- journal article
- Language
- en
- Open access
- closed
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- Heldebrant, D. J., Yonker, C. R., Jessop, P. G., & Phan, L. (2008). Organic liquid CO2 capture agents with high gravimetric CO2 capacity. Energy & Environmental Science. https://doi.org/10.1039/b809533g
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