离子液体体系吸收分离芳香族挥发性有机化合物的研究进展

Ionic liquid system for absorption and separation of aromatic volatile organic compounds

离子液体具有许多独特的物理化学性质,在捕获和分离挥发性有机化合物(VOCs),尤其是苯、甲苯、二甲苯等芳香族化合物方面显示出明显的潜力。介绍了近年来离子液体(包括纯离子液体、离子液体杂化体系和离子液体膜)用于芳香族VOCs捕集和分离的研究进展,总结了离子液体捕集和分离芳香族VOCs(如气相甲苯)的方法,讨论了离子液体与芳香族VOCs的相互作用,分析了离子液体结构、捕集温度、VOCs浓度、流量等因素对分离性能的影响,为未来离子液体的设计和开发提供了参考。

With many unique physical and chemical properties,ionic liquids show obvious potential in capturing and separating volatile organic compounds(VOCs),especially aromatic compounds such as benzene,toluene,xylene,etc. The research progresses of ionic liquids(including pure ionic liquids,ionic liquid hybrid systems and ionic liquid membranes) for capture and separation of gaseous aromatic VOCs in recent years are introduced. The methods for capturing and separating aromatic VOCs(such as gaseous toluene) with ionic liquids are summarized. The interaction between ionic liquids and aromatic VOCs is discussed. The effects of material structure,capture temperature,VOCs concentration and flow rate on separation are analyzed. These provide guidance for the design and development of ionic liquids in the future.