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1.发明授权公开(公告)号：US10537855B2
公开(公告)日：2020-01-21
申请号：US15860556
申请日：2018-01-02
Inventor： Jungkyu Choi , Kwan Young Lee , Eun-Joo Kim
Abstract: The present invention relates to a method of preparing a decadodecasil 3R (DDR) type zeolite membrane and a membrane prepared thereby, and more particularly, to a method of preparing a hydrophobic decadodecasil 3R (DDR) type zeolite membrane having a continuous out-of-plane orientation by adding a substrate on which a seed layer is formed to a silica source synthetic precursor containing a methyltropinium salt and performing a hydrothermal synthesis, and a method of capturing and removing carbon dioxide using a membrane prepared thereby.
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公开(公告)号：US10717054B2
公开(公告)日：2020-07-21
申请号：US15527690
申请日：2015-11-16
Inventor： Jungkyu Choi , Eun-Joo Kim
Abstract: The present invention relates to a chabazite zeolite membrane with a controlled pore size and a production method thereof, wherein the sizes of pore space and pore mouth of the chabazite zeolite membrane are finely controlled through chemical vapor deposition. Through the chemical vapor deposition, defects present in the chabazite zeolite membrane are eliminated, and the pore size is effectively controlled. Thus, unlike hydrophilic membranes showing excellent CO2/N2 separation performance under a dry condition, the chabazite zeolite membrane with a controlled pore size according to the present invention has a hydrophobic surface, and thus can maintain excellent CO2/N2 separation performance even under a wet condition. Accordingly, the chabazite zeolite membrane of the present invention can effectively capture carbon dioxide from nitrogen under various environmental conditions.
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3.发明申请公开(公告)号：US20180185792A1
公开(公告)日：2018-07-05
申请号：US15860556
申请日：2018-01-02
Inventor： Jungkyu Choi , Kwan Young Lee , Eun-Joo Kim
CPC classification number: B01D67/0088 , B01D53/228 , B01D67/0051 , B01D67/0083 , B01D69/10 , B01D71/028 , B01D2256/10 , B01D2256/24 , B01D2256/245 , B01D2257/504 , B01D2323/04 , B01D2323/08 , C01B37/02 , C01B39/48 , Y02C10/10
Abstract: The present invention relates to a method of preparing a decadodecasil 3R (DDR) type zeolite membrane and a membrane prepared thereby, and more particularly, to a method of preparing a hydrophobic decadodecasil 3R (DDR) type zeolite membrane having a continuous out-of-plane orientation by adding a substrate on which a seed layer is formed to a silica source synthetic precursor containing a methyltropinium salt and performing a hydrothermal synthesis, and a method of capturing and removing carbon dioxide using a membrane prepared thereby.
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