Solubility of Natural Gas Species in Ionic Liquids and Commercial Solvents: Experiments and Monte Carlo Simulations

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• 作者：Mahinder Ramdin ; Sayee Prasaad Balaji ; Ariana Torres-Knoop ; David Dubbeldam ; Theodoor Willem de Loos ; Thijs J. H. Vlugt
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2015
• 出版时间：October 8, 2015
• 年：2015
• 卷：60
• 期：10
• 页码：3039-3045
• 全文大小：410K
• ISSN：1520-5134

文摘

A detailed comparison of the solubility of carbon dioxide (CO₂) and methane (CH₄) in ionic liquids (ILs) and in conventional solvents like Selexol, Purisol, propylene carbonate, and sulfolane is presented. The solubilities are compared on mole fraction, molality, and volume basis to demonstrate the effect caused by the high molecular weight of ILs. We found that conventional solvents are superior to existing ILs in terms of mass- or volume-based solubilities. Monte Carlo simulations have been used to quantitatively predict the solubility of CO₂, CH₄, and C₂H₆ in the solvents 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [hmim][Tf₂N] and tetraethylene glycol dimethyl ether.