Title:
GAS SEPARATION MEMBRANE, GAS SEPARATION MEMBRANE ELEMENT AND GAS PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/132218
Kind Code:
A1
Abstract:
The present invention addresses the problem of improving separation selectivity of a light gas such as hydrogen and helium. A gas separation membrane according to the present invention is provided with a porous support layer and a separation function layer that is arranged on the porous support layer, while containing a crosslinked polyamide; the separation function layer has a corrugation structure that comprises a plurality of recesses and projections; the average of deformation amounts as obtained by pressing randomly selected 20 projections with a force of 3 nN is from 5.0 nm to 10.0 nm when the surface of the separation function layer is examined by an atomic force microscope in pure water at 25°C; and the standard deviation of the deformation amounts is 5.0 nm or less.
Inventors:
TOKUYAMA TAKAHIRO (JP)
IIZUKA RINA (JP)
HASEGAWA YOKO (JP)
HIROZAWA HIROHO (JP)
YAMADA HIROYUKI (JP)
IIZUKA RINA (JP)
HASEGAWA YOKO (JP)
HIROZAWA HIROHO (JP)
YAMADA HIROYUKI (JP)
Application Number:
PCT/JP2020/047875
Publication Date:
July 01, 2021
Filing Date:
December 22, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D63/10; B01D53/22; B01D69/00; B01D69/10; B01D69/12; B01D71/56; B01D71/68; C08G69/26
Domestic Patent References:
| WO2018079729A1 | 2018-05-03 |
Foreign References:
| JP2017213501A | 2017-12-07 | |||
| JP2019111529A | 2019-07-11 | |||
| JP2019177342A | 2019-10-17 | |||
| JP2019177343A | 2019-10-17 |
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