【摘要】 中空纤维渗透汽化膜组件具有器件小型化及成本较低等方面的优势,其工业应用潜力巨大。本文介绍了中空纤维渗透汽化复合膜及组件的研究进展,阐述了膜材料、成膜方法以及组件结构参数等对组件渗透汽化性能的影响,并对中空纤维渗透汽化膜组件的中试研究进行了总结。通过组件放大及中试研究发现,中空纤维渗透汽化膜组件的装填密度、长度以及抽吸方式均会影响其下游侧的真空度,从而影响其渗透汽化性能。膜材料的分子设计、组件的结构参数优化以及耐溶剂耐高温封装将是中空纤维渗透汽化膜组件未来工业放大过程中的关键环节。更多还原

【Abstract】 Hollow fiber membrane module has great potential for industrial applications because of the advantages of its small size and low cost.In this paper,advances in hollow fiber pervaporation composite membrane and module were reviewed.The effects of membrane material,preparation method and structural parameters for pervaporation performances were analyzed.The studies of pilot-scale hollow fiber pervaporation membrane modules were summarized.From pilot-scale study,it was observed that the packing density,fiber length and suction way of the hollow fiber pervaporation membrane module may affect the vacuum in the downstream side.The molecular design of membrane material,optimization of module structure and solvent and high temperature resistance of sealing are critical conditions during the industrial application process in the future.更多还原