Development of Pure Silica CHA Membranes for CO<sub>2</sub> Separation
Thin pure-silica chabazite (Si-CHA) membranes have been synthesized by using a secondary growth method on a porous silica substrate. A CO<sub>2</sub> permeance of 2.62 × 10<sup>−6</sup> mol m<sup>−2</sup> s<sup>−1</sup> Pa<sup>−1</sup> with...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-11-01
|
| Series: | Membranes |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-0375/11/12/926 |
| _version_ | 1797502556324233216 |
|---|---|
| author | Gabriel Gama da Silva Figueiredo Daishi Takayama Katsunori Ishii Mikihiro Nomura Takamasa Onoki Takuya Okuno Hiromasa Tawarayama Shinji Ishikawa |
| author_facet | Gabriel Gama da Silva Figueiredo Daishi Takayama Katsunori Ishii Mikihiro Nomura Takamasa Onoki Takuya Okuno Hiromasa Tawarayama Shinji Ishikawa |
| author_sort | Gabriel Gama da Silva Figueiredo |
| collection | DOAJ |
| description | Thin pure-silica chabazite (Si-CHA) membranes have been synthesized by using a secondary growth method on a porous silica substrate. A CO<sub>2</sub> permeance of 2.62 × 10<sup>−6</sup> mol m<sup>−2</sup> s<sup>−1</sup> Pa<sup>−1</sup> with a CO<sub>2</sub>/CH<sub>4</sub> permeance ratio of 62 was obtained through a Si-CHA membrane crystallized for 8 h using a parent gel of H<sub>2</sub>O/SiO<sub>2</sub> ratio of 4.6. The CO<sub>2</sub> permeance through the Si-CHA membrane on a porous silica substrate was twice as high as that through the membrane synthesized on a porous alumina substrate, which displayed a similar zeolite layer thickness. |
| first_indexed | 2024-03-10T03:35:48Z |
| format | Article |
| id | doaj.art-055f266ff3e44dffb0ff3a87b238bc96 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T03:35:48Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-055f266ff3e44dffb0ff3a87b238bc962023-11-23T09:30:00ZengMDPI AGMembranes2077-03752021-11-01111292610.3390/membranes11120926Development of Pure Silica CHA Membranes for CO<sub>2</sub> SeparationGabriel Gama da Silva Figueiredo0Daishi Takayama1Katsunori Ishii2Mikihiro Nomura3Takamasa Onoki4Takuya Okuno5Hiromasa Tawarayama6Shinji Ishikawa7Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, JapanShibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, JapanShibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, JapanShibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, JapanSumitomo Electric Industries Ltd., 1 Taya-cho, Sakae-ku, Yokohama 244-8588, JapanSumitomo Electric Industries Ltd., 1 Taya-cho, Sakae-ku, Yokohama 244-8588, JapanSumitomo Electric Industries Ltd., 1 Taya-cho, Sakae-ku, Yokohama 244-8588, JapanSumitomo Electric Industries Ltd., 1 Taya-cho, Sakae-ku, Yokohama 244-8588, JapanThin pure-silica chabazite (Si-CHA) membranes have been synthesized by using a secondary growth method on a porous silica substrate. A CO<sub>2</sub> permeance of 2.62 × 10<sup>−6</sup> mol m<sup>−2</sup> s<sup>−1</sup> Pa<sup>−1</sup> with a CO<sub>2</sub>/CH<sub>4</sub> permeance ratio of 62 was obtained through a Si-CHA membrane crystallized for 8 h using a parent gel of H<sub>2</sub>O/SiO<sub>2</sub> ratio of 4.6. The CO<sub>2</sub> permeance through the Si-CHA membrane on a porous silica substrate was twice as high as that through the membrane synthesized on a porous alumina substrate, which displayed a similar zeolite layer thickness.https://www.mdpi.com/2077-0375/11/12/926membrane separationinorganic membranezeolitepure silica CHA-type zeoliteCO<sub>2</sub> separationsilica substrates |
| spellingShingle | Gabriel Gama da Silva Figueiredo Daishi Takayama Katsunori Ishii Mikihiro Nomura Takamasa Onoki Takuya Okuno Hiromasa Tawarayama Shinji Ishikawa Development of Pure Silica CHA Membranes for CO<sub>2</sub> Separation Membranes membrane separation inorganic membrane zeolite pure silica CHA-type zeolite CO<sub>2</sub> separation silica substrates |
| title | Development of Pure Silica CHA Membranes for CO<sub>2</sub> Separation |
| title_full | Development of Pure Silica CHA Membranes for CO<sub>2</sub> Separation |
| title_fullStr | Development of Pure Silica CHA Membranes for CO<sub>2</sub> Separation |
| title_full_unstemmed | Development of Pure Silica CHA Membranes for CO<sub>2</sub> Separation |
| title_short | Development of Pure Silica CHA Membranes for CO<sub>2</sub> Separation |
| title_sort | development of pure silica cha membranes for co sub 2 sub separation |
| topic | membrane separation inorganic membrane zeolite pure silica CHA-type zeolite CO<sub>2</sub> separation silica substrates |
| url | https://www.mdpi.com/2077-0375/11/12/926 |
| work_keys_str_mv | AT gabrielgamadasilvafigueiredo developmentofpuresilicachamembranesforcosub2subseparation AT daishitakayama developmentofpuresilicachamembranesforcosub2subseparation AT katsunoriishii developmentofpuresilicachamembranesforcosub2subseparation AT mikihironomura developmentofpuresilicachamembranesforcosub2subseparation AT takamasaonoki developmentofpuresilicachamembranesforcosub2subseparation AT takuyaokuno developmentofpuresilicachamembranesforcosub2subseparation AT hiromasatawarayama developmentofpuresilicachamembranesforcosub2subseparation AT shinjiishikawa developmentofpuresilicachamembranesforcosub2subseparation |