Based on the wide applications of olefins in industries, especially in petrochemical industries which are among the major income sources, the separation of olefins from paraffin with membrane processes has been considered. Therefore, for the investigation of the performance of membrane processes, modeling can be used as a suitable and low‐cost method to estimate and predict the performance of these processes. In this research, membrane separation of propane/propylene is investigated, and then the performance of one‐step membrane unit and operational parameters such as temperature, pressure, membrane surface, and stage cut for current and cocurrent flow patterns are analyzed using computational fluid dynamic method which according to the obtained results the membrane process has high potential for this kind of separation. In all parameters investigation, the flow direction shows sensible effect, and in all of the parameters, countercurrent flow has more positive effect in comparison with cocurrent condition.

中文翻译：

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CFD法分离丙烷/丙烯膜的模型研究

基于烯烃在工业中的广泛应用，特别是在主要收入来源之一的石油化学工业中，已经考虑了通过膜法从石蜡中分离烯烃。因此，为了研究膜工艺的性能，可以将建模用作评估和预测这些工艺性能的合适且低成本的方法。在这项研究中，对丙烷/丙烯的膜分离进行了研究，然后使用计算流体力学分析了一步膜单元的性能以及温度，压力，膜表面和阶段截流等电流和顺流模式的操作参数。根据获得的结果，该方法的膜方法对于这种分离具有很高的潜力。