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Although a lot of investigations have been performed on solvents regarding the absorption of CO 2 in the past decades, not much is known about absorption in mixtures of solvents. It is supposed that additives like acetone lead to higher CO 2 solubilities in methanol compared to absorption in pure methanol. Moreover, there is very little information on the absorption of CO 2 in methanol with contents of water, which is present in many absorption processes. In this work, a new apparatus is introduced for the investigation of gas solubilities in physical solvents like alcohols, ketones or other solvents in a temperature range of T = 253.15 K to T = 453.15 K . Two different measurement methods are shown and the results are published as ( p , x ) data and diagrams. The obtained data increase the knowledge of solubilities of CO 2 in mixtures of methanol and water at certain water contents as well as in acetone at temperatures of T ≪ 298.15 K , which have not been examined in modern, accessible literature before. The absorption of CO 2 in mixtures of acetone and methanol is published for the first time. [ABSTRACT FROM AUTHOR]

Abstract: The solubilities of gases in ionic liquids and compressed liquid densities have been successfully described over a wide range of conditions using a reformulated corresponding-states formulation for direct correlation function integrals. In addition, comparisons with experimental data show reliable prediction of ionic liquid characteristic properties from simple rules. [Copyright &y& Elsevier]