论文部分内容阅读
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.
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 in the limit conditions (such as pervaporation, reverse osmosis, nanofiltration, etc.) The general lack of understanding of the mechanism of common mass transfer and the control methods severely restrict the design and development of the relevant membrane materials.According to the current situation, this paper first analyzes the challenges existing in the classical mass transfer model under the limited conditions; Secondly, Finally, due to the large number of factors that affect the fluid behavior in the confined zone and their mutual coupling, the difficulty of univariate analysis and the determination of control factors is increased. Therefore, a systematic analysis of the application of the thermodynamic linearization method to the limited mass transfer model is made. Simulation and Experimental Research on Influencing Factors of Mass Transfer in Field.