Title:
ZEOLITE MEMBRANE COMPOSITE BODY, MEMBRANE REACTION DEVICE, AND METHOD FOR PRODUCING ZEOLITE MEMBRANE COMPOSITE BODY
Document Type and Number:
WIPO Patent Application WO/2023/085371
Kind Code:
A1
Abstract:
A zeolite membrane composite body (1)is provided with a porous supporting body (11) and a zeolite membrane (12) which is arranged on the supporting body (11) and is formed of LTA zeolite. If the Si/Al molar ratio in the zeolite membrane (12) is 1.74 to 2.80, the zeolite membrane composite body (1) can have improved hydrothermal durability. If the Si/Al molar ratio in the zeolite membrane (12) is 1.2 or more, and at least one of the intensity of a peak that is present around 2θ = 24.0° and the intensity of a peak that is present around 2θ = 30.0° is not less than 0.85 times the intensity of a peak that is present around 2θ = 7.2° in the X-ray diffraction pattern obtained by irradiating the surface of the zeolite membrane (12) with an X-ray, the zeolite membrane composite body (1) can have improved strength.
Inventors:
KAMATA SHUNSUKE (JP)
NODA KENICHI (JP)
KINOSHITA NAOTO (JP)
YOSHIMURA RYOTARO (JP)
NODA KENICHI (JP)
KINOSHITA NAOTO (JP)
YOSHIMURA RYOTARO (JP)
Application Number:
PCT/JP2022/041965
Publication Date:
May 19, 2023
Filing Date:
November 10, 2022
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
B01D69/10; B01D69/12; B01D71/02
Domestic Patent References:
| WO2020195105A1 | 2020-10-01 | |||
| WO2020261795A1 | 2020-12-30 | |||
| WO2020255867A1 | 2020-12-24 |
Foreign References:
| JP2020164407A | 2020-10-08 | |||
| JP2021016858A | 2021-02-15 | |||
| JP2018038977A | 2018-03-15 | |||
| JP2021104467A | 2021-07-26 | |||
| JP2007313390A | 2007-12-06 |
Attorney, Agent or Firm:
MATSUSAKA, Masahiro et al. (JP)
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