Title:
ZEOLITE MEMBRANE COMPOSITE BODY, METHOD FOR PRODUCING ZEOLITE MEMBRANE COMPOSITE BODY, AND SEPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/162854
Kind Code:
A1
Abstract:
A zeolite membrane composite body (1) according to the present invention is provided with a porous supporting body (11), and a zeolite membrane (12) that is provided on the supporting body (11). With respect to the zeolite membrane (12), the Si/Al molar ratio increases from an interface part (121) at the interface with the supporting body (11) toward the membrane inner side, while the Si/Al molar ratio decreases from the membrane inner side toward a surface part (122) that is on the reverse side from the supporting body (11). Consequently, the present invention enables the achievement of a zeolite membrane composite body (1) which has high water permeation flux and high hydrothermal durability, while being suppressed in membrane separation.
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Inventors:
AMANO NAO (JP)
NODA KENICHI (JP)
KINOSHITA NAOTO (JP)
NAKANISHI TAKAHIRO (JP)
HIRANE AZUMI (JP)
NODA KENICHI (JP)
KINOSHITA NAOTO (JP)
NAKANISHI TAKAHIRO (JP)
HIRANE AZUMI (JP)
Application Number:
PCT/JP2023/005469
Publication Date:
August 31, 2023
Filing Date:
February 16, 2023
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
B01D71/02; B01D69/12; C01B39/48
Domestic Patent References:
| WO2016084846A1 | 2016-06-02 | |||
| WO2014007140A1 | 2014-01-09 |
Foreign References:
| JP2005289735A | 2005-10-20 | |||
| JP2014198308A | 2014-10-23 |
Attorney, Agent or Firm:
MATSUSAKA, Masahiro et al. (JP)
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