指出了渗透蒸发过程的两个关键步骤,即膜表面的吸附步骤和膜内的扩散步骤;详细描述了渗透蒸发膜中的吸附、扩散和传质模型.这些模型分析和预测了通过渗透蒸发膜中的致密选择分离层所进行的质量传递.分别阐述了不同模型的内容、特点和使用范围.涉及模型的使用范围时还考虑到了不同的聚合物分类,即玻璃态、半晶态和橡胶态.指出了渗透蒸发传质模型研究中膜机理的研究与膜过程和组件的设计两个重要方面.
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