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首页> 外文期刊>Journal of industrial and engineering chemistry >Hollow fiber membrane model for gas separation: Process simulation, experimental validation and module characteristics study
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Hollow fiber membrane model for gas separation: Process simulation, experimental validation and module characteristics study

机译：用于气体分离的中空纤维膜模型：过程模拟，实验验证和组件特性研究

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Conceptual process simulations and optimization are essential in the design, operation and troubleshooting stages of a membrane-based gas separation system. Despite this, there are few mathematical models/tools associated with a hollow fiber membrane module available in a commercial process simulator. A mathematical model dealing with the hollow fiber module characteristics that can be included within a commercial process simulator is needed to examine the performance and economics of a gas separation system. In this study, a hollow fiber membrane model was incorporated in Aspen HYSYS as a user defined unit operation for the study of carbon dioxide separation from methane. The hollow fiber membrane model was validated experimentally. The study of a double stage membrane module with a permeate recycle, which was proposed to be the optimal configuration in previous studies, was extended to consider the effects of the module characteristics (such as the fiber length, radius of the fiber bundle, diameter of the fibers, and porosity) on the process performance and economics. The gas processing cost (GPC) increased with increasing fiber length and bundle radius, and decreased with increasing outer diameter of the fibers and porosity. At the same time, the separation efficiency (product quality) was also dependent on these module parameters. Therefore, the tradeoff for the hollow fiber membrane module characteristics needs to be determined based on the minimum GPC with respect to the desired product purity. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：在基于膜的气体分离系统的设计，操作和故障排除阶段，概念性过程仿真和优化至关重要。尽管如此，在商业过程模拟器中几乎没有与中空纤维膜组件相关的数学模型/工具。需要一个可以处理在商业过程模拟器中的处理中空纤维组件特性的数学模型来检查气体分离系统的性能和经济性。在这项研究中，中空纤维膜模型已作为用户定义的单元操作纳入Aspen HYSYS中，用于研究从甲烷中分离二氧化碳。实验验证了中空纤维膜模型。在先前的研究中，建议将具有渗透物再循环功能的双级膜组件作为最佳配置进行研究，以考虑组件特性的影响（例如纤维长度，纤维束半径，纤维直径）。纤维和孔隙率）对工艺性能和经济性的影响。气体处理成本（GPC）随着纤维长度和束半径的增加而增加，而随着纤维外径和孔隙率的增加而降低。同时，分离效率（产品质量）也取决于这些模块参数。因此，中空纤维膜组件特性的折衷需要基于相对于期望的产品纯度的最小GPC来确定。 （C）2014韩国工业和工程化学学会。由Elsevier B.V.发布。保留所有权利。

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