公开(公告)号：US11904282B2

公开(公告)日：2024-02-20

申请号：US17149823

申请日：2021-01-15

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Jungkyu Choi ,  Kwan Young Lee ,  Minseong Lee

IPC: B01D67/00 ,  B01D53/22 ,  C02F1/44 ,  C01B39/02 ,  C01B39/48 ,  B01J20/18 ,  B01J20/28 ,  B01J20/30 ,  C10L3/10 ,  B01D69/10 ,  B01D71/02 ,  C02F101/34

CPC classification number: B01D67/0083 ,  B01D53/228 ,  B01D67/0051 ,  B01D67/0095 ,  B01D69/107 ,  B01D69/108 ,  B01D71/0281 ,  B01J20/183 ,  B01J20/28033 ,  B01J20/3057 ,  B01J20/3078 ,  C01B39/026 ,  C01B39/48 ,  C02F1/44 ,  C10L3/104 ,  C10L3/105 ,  C02F2101/34 ,  C10L2290/548

Abstract: The present invention relates to a method of controlling a defect structure in a chabazite (CHA) zeolite membrane, the CHA zeolite membrane having a controlled defect structure by the method and a method of separating CO2, H2, or He and water from a mixture of water and an organic solvent using the CHA zeolite membrane, and more particularly, to a method of controlling a defect structure in a CHA zeolite membrane that improves the separation performance by reducing the amount and size of defects formed in the CHA membrane structure when removing organic-structure-directing agents in the membrane through calcination at a low temperature using ozone.