Carbon Dioxide Uptake from Natural Gas by Binary Ionic Liquid-Water mixtures

Kris Anderson, Martin P. Atkins, Julien Estager, YongCheun Kuah, Shieling Ng, Aleksander A. Oliferenko, Natalia V. Plechkova, Alberto Vaca Puga, Kenneth R. Seddon, David F. Wassell

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)


Carbon dioxide solubility in a set of carboxylate ionic liquids formulated with stoicheiometric amounts of water is found to be significantly higher than for other ionic liquids previously reported. This is due to synergistic chemical and physical absorption. The formulated ionic liquid/water mixtures show greatly enhanced carbon dioxide solubility relative to both anhydrous ionic liquids and aqueous ionic liquid solutions, and are competitive with commercial chemical absorbers, such as activated N-methyldiethanolamine or monoethanolamine.
Original languageEnglish
Pages (from-to)4340-4354
Number of pages15
JournalGreen Chemistry
Issue number8
Early online date02 Jul 2015
Publication statusPublished - 2015


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