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

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• 作者：Wentao Bi (1)
  Baokun Tang (1)
  Kyung Ho Row (1)
  
• 关键词：Poly(ionic liquid) ; Ethanol ; Adsorption ; Imidazole
• 刊名：Bioprocess and Biosystems Engineering
• 出版年：2013
• 出版时间：June 2013
• 年：2013
• 卷：36
• 期：6
• 页码：651-658
• 全文大小：459KB
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• 作者单位：Wentao Bi (1)
  Baokun Tang (1)
  Kyung Ho Row (1)
  
  1. Department of Chemical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon, 402-751, Korea
  
• ISSN：1615-7605

文摘

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.