Adsorption of alcohol from water by poly(ionic liquid)s

作者：Bi Wentao; Tang Baokun; Row Kyung Ho^*

来源：Bioprocess and Biosystems Engineering, 2013, 36(6): 651-658.

DOI：10.1007/s00449-012-0828-8

• Poly(ionic liquid)
• Ethanol
• Adsorption
• Imidazole

Bioethanol is used widely as a solvent and is considered a potential liquid fuel. Ethanol can be produced from biomass by fermentation, which results in low concentrations of alcohol in water. Conventional distillation is normally used to separate ethanol from water, but it required high energy consumption. Therefore, alternative approaches to this separation are being pursued. This study examined the potential use of poly(ionic liquid)s (PILs) for the extraction and separation of alcohols from the aqueous phase. Hydrophobic PILs were developed and evaluated by the adsorption of ethanol from ethanol/water solutions. All the necessary parameters, such as cations and anions of the ionic liquid, morphology of the polymer and processing conditions, were evaluated.

• 出版日期2013-6