Gas Separation by the Molecular Exchange Flow through Micropores of the Membrane

被引：9

作者：

Matsumoto, Michiaki ^{[1
]}

Nakaye, Shoeji ^{[1
]}

Sugimoto, Hiroshi ^{[1
]}

机构：

[1] Kyoto Univ, Dept Aeronaut & Astronaut, Kyoto 6158540, Japan

来源：

30TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS (RGD 30) | 2016年 / 1786卷

关键词：

thermal transpiration; membrane gas separation; molecular gas dynamics; Knudsen pump; Knudsen diffusion; THERMAL TRANSPIRATION; NUMERICAL-ANALYSIS; RAREFIED-GAS; KNUDSEN PUMP; TEMPERATURE; PRESSURE; MIXTURE;

D O I：

10.1063/1.4967604

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A model gas separator that makes use of the molecular exchange flow through porous membrane of 18 cm(2) area is fabricated. The gas separator performance is tested for helium-neon mixture. The separator divides a continuous flow of gas mixture into two flows of different gases. The difference of mole percentage is around 8 % at the volumetric feed flow rate of 1 sccm. In the present system, the molecular exchange flow is induced in two Knudsen pumps, where the mixed cellulose ester membrane is used as the thermal transpiration material. The experiment demonstrates the capability of these pumps to increase the concentration of heavy and light molecules, respectively, from the feed mixture.

引用

页数：8

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