介绍了中空纤维膜接触器在气体分离、净化以及精馏结构填料替代等方面研究的最新进展,并结合笔者所进行的实验工作,从膜接触器中体系的流动方式、壳程挡板、纤维膜组器的填充密度等方面详细探讨了中空纤维膜接触器的空间结构对于过程传质和分离效果的影响.分析结果表明,在气液接触分离过程中,为有效提高膜接触分离过程的传质系数,大多数研究采用了平流中的逆流方式;壳程挡板的增设可以促进过程的分离效果,但其作用并非始终随挡板数量的增加而增强;膜组器填充密度对壳程传质的影响明显,且大多数实验结果表明,过程分离的总传质系数随填充密度的增加而减小.
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