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Design assessment of polymeric membranes modules to separate carbon dioxide from a binary mixture with methane
Chemical Engineering and Processing: Process Intensification ( IF 3.8 ) Pub Date : 2020-03-02 , DOI: 10.1016/j.cep.2020.107883
Juan Pablo Gutierrez , Elisa Liliana Ale Ruiz , Eleonora Erdmann

This work presents the performance assessment of diverse membrane arrangements to separate carbon dioxide (CO2) from a binary mixture with methane (CH4). For the purpose, we employ computer modeling to represent different polymeric modules, which are able to split an inlet CH4/CO2 gaseous mixture into sweet and acid products. Aim of the process is to achieve a high-purity CO2 permeate, reducing the CH4 losses. Novelty, we compare the performances of different existing commercial polymers, available for gas industries: cellulose acetate, polycarbonates, polyamides, polyamide-imides, polyamides thin-film composites, among others. The importance of the use of different materials is the possibility to replicate total membrane area, transport properties, and operating conditions. Finally, a comparative and integral discussion of the simulations considers three fundamental aspects: hydrocarbon recovery, residual gas quality, and compression power to carry out the separation.



中文翻译:

聚合物膜组件的设计评估,以将二氧化碳与甲烷二元混合物分离

这项工作提出了各种膜布置的性能评估,以从与甲烷(CH 4)形成的二元混合物中分离出二氧化碳(CO 2)。为此,我们采用计算机建模来表示不同的聚合物模块,这些模块能够将入口CH 4 / CO 2气态混合物分为甜味和酸味产品。该过程的目的是实现高纯度的CO 2渗透物,减少CH 4损失。新颖性是,我们比较了可用于天然气工业的各种现有商业聚合物的性能:醋酸纤维素,聚碳酸酯,聚酰胺,聚酰胺酰亚胺,聚酰胺薄膜复合材料等。使用不同材料的重要性在于可以复制总膜面积,运输特性和操作条件。最后,对模拟进行的比较性和整体性讨论考虑了三个基本方面:烃采收率,残余气体质量和进行分离的压缩功率。

更新日期:2020-03-02
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