Experimental Determination of the Gas Transport Characteristics of Polysulfone and Poly(phenylene oxide) Hollow Fiber Membranes in Relation to Noble Gases

IF 2 Q4 CHEMISTRY, PHYSICAL

Membranes and Membrane Technologies Pub Date : 2023-10-01 DOI:10.1134/S2517751623050013

A. A. Atlaskin, S. S. Kryuchkov, A. N. Stepakova, I. S. Moiseenko, N. S. Tsivkovsky, K. A. Smorodin, A. N. Petukhov, M. E. Atlaskina, I. V. Vorotyntsev

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Abstract

Commercially available hollow fiber membranes made of two polymers, namely, polysulfone and poly(phenylene oxide), are studied experimentally. The main task of this study is to estimate the gas transport characteristics of these membranes in relation to air components and noble gases. Therefore, the values of permeability of the membranes for nitrogen, oxygen, helium, argon, xenon and krypton are measured. Particular attention is paid to the xenon-containing air mixture, since the capture of medical xenon is an urgent chemical and technological problem due to a high cost of the process of obtaining this gas. The values of permeability of the two membranes for individual gases are determined, and the values of ideal selectivity are calculated. For example, the values of membrane permeability for argon, krypton, and xenon are 20.8, 8.4, and 6.8 GPU for the polysulfone membrane and 19.5, 6.2, and 4.8 GPU for the poly(phenylene oxide) membrane, respectively. It is found that the xenon permeability of these membranes in the case of separation of the gas mixture composed of nitrogen, oxygen, and xenon is 5.9 and 4.1 GPU for polysulfone and poly(phenylene oxide). It is also shown that the performance of membrane modules based on polysulfone and poly(phenylene oxide) depends on the total membrane area.

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聚砜和聚苯醚中空纤维膜与惰性气体气体传输特性的实验测定

实验研究了由聚砜和聚苯醚两种聚合物制成的市售中空纤维膜。本研究的主要任务是估计这些膜相对于空气成分和稀有气体的气体传输特性。因此，测量了膜对氮、氧、氦、氩、氙和氪的渗透性值。特别关注含氙空气混合物，因为捕获医用氙是一个紧迫的化学和技术问题，因为获得这种气体的过程成本很高。确定了两种膜对单个气体的渗透率值，并计算了理想选择性值。例如，对于聚砜膜，氩、氪和氙的膜渗透性值分别为20.8、8.4和6.8GPU，对于聚（亚苯基氧化物）膜，分别为19.5、6.2和4.8GPU。发现在分离由氮、氧和氙组成的气体混合物的情况下，对于聚砜和聚苯氧化物，这些膜的氙渗透率分别为5.9和4.1GPU。研究还表明，基于聚砜和聚苯醚的膜组件的性能取决于膜的总面积。

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来源期刊

Membranes and Membrane Technologies Multiple-

CiteScore

3.10

自引率

31.20%

发文量

期刊介绍： The journal Membranes and Membrane Technologies publishes original research articles and reviews devoted to scientific research and technological advancements in the field of membranes and membrane technologies, including the following main topics:novel membrane materials and creation of highly efficient polymeric and inorganic membranes;hybrid membranes, nanocomposites, and nanostructured membranes;aqueous and nonaqueous filtration processes (micro-, ultra-, and nanofiltration; reverse osmosis);gas separation;electromembrane processes and fuel cells;membrane pervaporation and membrane distillation;membrane catalysis and membrane reactors;water desalination and wastewater treatment;hybrid membrane processes;membrane sensors;membrane extraction and membrane emulsification;mathematical simulation of porous structures and membrane separation processes;membrane characterization;membrane technologies in industry (energy, mineral extraction, pharmaceutics and medicine, chemistry and petroleum chemistry, food industry, and others);membranes and protection of environment (“green chemistry”).The journal has been published in Russian already for several years, English translations of the content used to be integrated in the journal Petroleum Chemistry. This journal is a split off with additional topics.