NDLI: Preparation of Hollow Fiber Membranes Based On Poly(4-methyl-1-pentene) for Gas Separation

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Preparation of Hollow Fiber Membranes Based On Poly(4-methyl-1-pentene) for Gas Separation

Content Provider	MDPI
Author	Dukhov, Anton V. Pelzer, Martin Markova, Svetlana Yu. Syrtsova, Daria A. Shalygin, Maxim G. Gries, Thomas Teplyakov, Vladimir V.
Copyright Year	2021
Description	New hollow fiber gas separation membranes with a non-porous selective layer based on poly(4-methyl-1-pentene) (PMP) granules have been obtained using the solution-free melt spinning process. The influence of the preparation conditions on the geometry of the obtained samples was studied. It was found that a spin head temperature of 280 °C and a specific mass throughput of 103 g $mm^{−2}$ $h^{−1}$ are optimal to obtain defect-free, thin-walled hollow fibers in a stable melt spinning process, using the given spinneret geometry and a winding speed of 25 m/min. The gas permeability and separation properties of new fibers were studied using $CO_{2}/N_{2}$ and $CO_{2}/CH_{4}$ mixtures, and it was found that the level of gas selectivity characteristic of homogeneous polymer films can be achieved. The features of the gas mixture components permeability below and above the PMP glass transition temperature have been experimentally studied in the range of $CO_{2}$ concentrations from 10 to 90% vol. The temperature dependences of the permeability of the $CO_{2}/CH_{4}/N_{2}$ mixture through the obtained HF based on PMP have been investigated, and the values of the apparent activation energies of the permeability have been calculated, which make it possible to predict the properties of membrane modules based on the obtained membranes in a wide temperature range.
Starting Page	1
e-ISSN	20796439
DOI	10.3390/fib10010001
Journal	Fibers
Issue Number	1
Volume Number	10
Language	English
Publisher	MDPI
Publisher Date	2021-12-24
Access Restriction	Open
Subject Keyword	Fibers Petroleum Engineering Poly(4-methyl-1-pentene) (pmp) Membrane Gas Separation Hollow Fibers Gas Permeability
Content Type	Text
Resource Type	Article

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