Title:
ZEOLITE MEMBRANE COMPOSITE BODY, ZEOLITE MEMBRANE COMPOSITE BODY PRODUCTION METHOD, AND SEPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/179432
Kind Code:
A1
Abstract:
This zeolite membrane composite body (1) comprises a porous support (11) and a zeolite membrane (12) formed on the support (11). The zeolite membrane (12) comprises a low-density layer (13) covering the support (11), and a dense layer (14) covering the low-density layer (13).
The dense layer (14) has a higher zeolite crystal phase content than the low-density layer (13). Forming the dense layer (14) on the low-density layer (13) covering the support (11) in this manner allows a thin dense layer (14) having no defects to be formed readily, compared to when the dense layer is formed directly on the support. As a result, the zeolite membrane composite body (1) having high permeation capacity and high separation capacity can be achieved.
Inventors:
ICHIKAWA MAKIKO (JP)
YAJIMA KENJI (JP)
MIYAHARA MAKOTO (JP)
KINOSHITA NAOTO (JP)
YAJIMA KENJI (JP)
MIYAHARA MAKOTO (JP)
KINOSHITA NAOTO (JP)
Application Number:
PCT/JP2020/006209
Publication Date:
September 10, 2020
Filing Date:
February 18, 2020
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
B01D69/00; B01D53/22; B01D69/10; B01D69/12; B01D71/02; C01B39/48
Domestic Patent References:
| WO2012046545A1 | 2012-04-12 | |||
| WO2018180563A1 | 2018-10-04 | |||
| WO2018180243A1 | 2018-10-04 | |||
| WO2017169591A1 | 2017-10-05 |
Foreign References:
| JPH1057784A | 1998-03-03 | |||
| JP2005262189A | 2005-09-29 |
Attorney, Agent or Firm:
MATSUSAKA, Masahiro et al. (JP)
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