基于限域传质机制的膜过程定量描述的研究进展

发布时间：2018-05-30 12:27

本文选题：纳米受限 + 建模　；参考：《科学通报》2017年Z1期

【摘要】：作为新型的化工单元操作,膜分离具有高效、节能等优势,然而相关的传质理论,尤其在限域条件下(如渗透汽化、反渗透、纳滤等),对其传质出现的反常现象普遍缺乏共性传质机制及调控方法的认识,严重制约了相关膜材料的设计开发.针对这一现状,本文首先剖析了经典传质模型在限域条件下存在的挑战;其次,探讨了非平衡热力学线性化方法在限域传质模型建立中的应用;最后,由于影响限域流体行为的因素众多且相互耦合,增加了单因素分析及确定控制因素的难度,为此,系统分析了针对限域传质影响因素的模拟和实验研究进展.
[Abstract]:As a new type of chemical unit operation, membrane separation has the advantages of high efficiency and energy saving. However, the related mass transfer theory, especially under limited conditions (such as pervaporation, reverse osmosis, etc.) The abnormal phenomenon of mass transfer in nanofiltration is generally lack of common mass transfer mechanism and regulation methods, which seriously restricts the design and development of membrane materials. In view of this situation, this paper first analyzes the challenge of the classical mass transfer model under the condition of limited region; secondly, discusses the application of nonequilibrium thermodynamics linearization method in the establishment of the limited region mass transfer model; finally, it discusses the application of the nonequilibrium thermodynamics linearization method in the establishment of the limited region mass transfer model. Because there are many factors that affect the behavior of confined fluid and they are coupled with each other, it is more difficult to analyze the single factor and to determine the control factors. Therefore, the simulation and experimental research progress of the factors affecting mass transfer in the limited region is systematically analyzed.
【作者单位】：南京工业大学化工学院材料化学工程国家重点实验室;
【基金】：国家重点基础研究发展计划(2015CB655301) 国家自然科学基金(21490584,21576130) 江苏省自然科学基金(BK20130062)资助
【分类号】：TQ028.8

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