High-pressure phase behavior of ionic liquid/CO2 systems

Article Abstract:

The high-pressure phase behavior of CO2 with six ionic liquids and the effect of systematically changing the anionic and cationic components of the ionic liquid on the CO2-ionic liquid phase behavior are studied. The result tries to explain the physical mechanism of the unusual phase behavior and also indicates the existence of the correlation between CO2 solubility and liquid molar volume.

Science & research, Oxygen, Research, Carbon, Water chemistry, Ionic crystals

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Improving carbon dioxide solubility in ionic liquids

Article Abstract:

The examination of C[O.sub.2] solubility in a number of ionic liquids with systematic increases in fluorination reveals that ionic liquids containing increased fluoroalkyl chains on either the cation or anion improve C[O.sub.2] solubility when compared to less fluorinated ionic liquids.

Analysis, Fluorination

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High-pressure phase behavior of carbon dioxide with imidazolium-based ionic liquids

Article Abstract:

The influence of anion, cation alkyl chain length, and additional alkyl substituents on the cation ring and on the solubility of CO2 in ILs at pressures to 150 bar is investigated. The results suggest that the solubility of carbon dioxide is strongly dependent on the choice of anion.

Alkyl groups

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