Title:
GAS SEPARATION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/009514
Kind Code:
A1
Abstract:
Provided is a gas separation method that enables suppression of decrease in gas permeation performance of a hydrophilic porous membrane while maintaining excellent membrane production performance of the hydrophilic porous membrane. By use of a gas separation device 1 configured by being provided with a selectively permeable membrane 10 having a separation function layer 12 through which gas G0 to be separated selectively permeates, and a first treatment chamber 21 and a second treatment chamber 22 separated by the selectively permeable membrane, mixed gas FG containing the gas G0 to be separated is supplied to the first treatment chamber or is generated in the first treatment chamber, the gas G0 to be separated permeates from the first treatment chamber 21 side of the selectively permeable membrane 10 to the second treatment chamber 22 side thereof, and the gas G0 to be separated is separated from the mixed gas FG. The selectively permeable membrane 10 has a laminated structure obtained by laminating in order a hydrophilic porous membrane 11, the separation function layer 12, and a first protection membrane 13 of the hydrophobic porous membrane. The separation function layer 12 is configured by being provided with a gel layer of a hydrophilic polymer containing moisture. The first treatment chamber 21 is provided to the hydrophilic porous membrane 11 side of the selectively permeable membrane 10. The second treatment chamber 22 is provided to the first protection membrane 13 side of the selectively permeable membrane 10.
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Inventors:
OKADA OSAMU (JP)
HANAI NOBUAKI (JP)
HANAI NOBUAKI (JP)
Application Number:
PCT/JP2021/017698
Publication Date:
January 13, 2022
Filing Date:
May 10, 2021
Export Citation:
Assignee:
RENAISSANCE ENERGY RES CORP (JP)
International Classes:
B01D69/00; B01D53/22; B01D71/14; B01D71/20; B01D71/26; B01D71/34; B01D71/36; B01D71/40; B01D71/42; B01D71/44; B01D71/50; B01D71/64; B01D71/68
Domestic Patent References:
| WO2012086836A1 | 2012-06-28 | |||
| WO2019130470A1 | 2019-07-04 | |||
| WO2014054619A1 | 2014-04-10 |
Foreign References:
| JP2011183379A | 2011-09-22 | |||
| JP2015024372A | 2015-02-05 |
Attorney, Agent or Firm:
MASAKI Yoshifumi (JP)
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