ADEM Publications, Presentations and other output

Solubility of CO2 in the Ionic Liquids [TBMN][MeSO4] and [TBMP][MeSO4]

Ramdin, Mahinder;

10.1021/je3002514

2012-07-06

6

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The solubility of CO2 in two inexpensive ionic liquids, tributylmethylammonium methylsulfate [TBMN][MeSO4] and tributylmethylphosphonium methylsulfate [TBMP][MeSO4], has been studied experimentally. A synthetic method was used to measure bubble-point pressures up to 13 MPa for a temperature range of (313 to 368) K. The solubility of CO2 in [TBMP][MeSO4] was slightly higher than in [TBMN][MeSO4], but CO2 solubilities in both the ionic liquids were surprisingly higher than in the imidazolium analogue 1-butyl-3-methylimidazolium methylsulfate [bmim][MeSO4]. The relatively high melting points of the used ionic liquids may limit their application in CO2 capture processes.