NaA zeolite membranes have exhibited excellent performance in pervaporation dehydration of organic solvents. However, the industrial applications based on tubular NaA zeolite membranes are limited due to the high fabrication cost and low permeation flux. Hollow fiber supported zeolite membranes have great advantages of high permeation flux and large packing density, which are beneficial to further reduce the membrane cost. For practical application, it is of great significance to design membrane modules with optimized geometric configuration for the hollow fibers. Here, a hollow fiber membrane module equipped with seven bundles of hollow fiber NaA zeolite membranes and several baffles was designed by computational fluid dynamics (CFD) technique. The effect of baffles on flow field distribution of the membrane module was investigated. The results showed that the membrane module with two radial baffles and four axial baffles not only showed uniform flow distributions inside the module, but also improved the axial velocities along the hollow fibers, which could alleviate concentration polarization. The improved separation efficiency of the membrane module was further confirmed by the experimental characterization.

NaA沸石膜在有机溶剂的全蒸发脱水中表现出优异的性能。然而，由于高制造成本和低渗透通量，基于管状NaA沸石膜的工业应用受到限制。中空纤维负载的沸石膜具有高渗透通量和大堆积密度的巨大优点，这有利于进一步降低膜的成本。对于实际应用，设计具有优化的中空纤维几何构型的膜组件非常重要。在这里，通过计算流体动力学（CFD）技术设计了配备有七束中空NaA沸石纤维膜和几个挡板的中空纤维膜组件。研究了挡板对膜组件流场分布的影响。结果表明，具有两个径向导流板和四个轴向导流板的膜组件不仅在组件内部表现出均匀的流动分布，而且提高了沿中空纤维的轴向速度，可减轻浓度极化。实验表征进一步证实了膜组件分离效率的提高。