Development of Pure Silica CHA Membranes for CO(2) Separation

Thin pure-silica chabazite (Si-CHA) membranes have been synthesized by using a secondary growth method on a porous silica substrate. A CO(2) permeance of 2.62 × 10(−6) mol m(−2) s(−1) Pa(−1) with a CO(2)/CH(4) permeance ratio of 62 was obtained through a Si-CHA membrane crystallized for 8 h using a...

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Autores principales: Figueiredo, Gabriel Gama da Silva, Takayama, Daishi, Ishii, Katsunori, Nomura, Mikihiro, Onoki, Takamasa, Okuno, Takuya, Tawarayama, Hiromasa, Ishikawa, Shinji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8708445/
https://www.ncbi.nlm.nih.gov/pubmed/34940427
http://dx.doi.org/10.3390/membranes11120926
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author Figueiredo, Gabriel Gama da Silva
Takayama, Daishi
Ishii, Katsunori
Nomura, Mikihiro
Onoki, Takamasa
Okuno, Takuya
Tawarayama, Hiromasa
Ishikawa, Shinji
author_facet Figueiredo, Gabriel Gama da Silva
Takayama, Daishi
Ishii, Katsunori
Nomura, Mikihiro
Onoki, Takamasa
Okuno, Takuya
Tawarayama, Hiromasa
Ishikawa, Shinji
author_sort Figueiredo, Gabriel Gama da Silva
collection PubMed
description Thin pure-silica chabazite (Si-CHA) membranes have been synthesized by using a secondary growth method on a porous silica substrate. A CO(2) permeance of 2.62 × 10(−6) mol m(−2) s(−1) Pa(−1) with a CO(2)/CH(4) permeance ratio of 62 was obtained through a Si-CHA membrane crystallized for 8 h using a parent gel of H(2)O/SiO(2) ratio of 4.6. The CO(2) 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.
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spelling pubmed-87084452021-12-25 Development of Pure Silica CHA Membranes for CO(2) Separation Figueiredo, Gabriel Gama da Silva Takayama, Daishi Ishii, Katsunori Nomura, Mikihiro Onoki, Takamasa Okuno, Takuya Tawarayama, Hiromasa Ishikawa, Shinji Membranes (Basel) Article Thin pure-silica chabazite (Si-CHA) membranes have been synthesized by using a secondary growth method on a porous silica substrate. A CO(2) permeance of 2.62 × 10(−6) mol m(−2) s(−1) Pa(−1) with a CO(2)/CH(4) permeance ratio of 62 was obtained through a Si-CHA membrane crystallized for 8 h using a parent gel of H(2)O/SiO(2) ratio of 4.6. The CO(2) 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. MDPI 2021-11-25 /pmc/articles/PMC8708445/ /pubmed/34940427 http://dx.doi.org/10.3390/membranes11120926 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Figueiredo, Gabriel Gama da Silva
Takayama, Daishi
Ishii, Katsunori
Nomura, Mikihiro
Onoki, Takamasa
Okuno, Takuya
Tawarayama, Hiromasa
Ishikawa, Shinji
Development of Pure Silica CHA Membranes for CO(2) Separation
title Development of Pure Silica CHA Membranes for CO(2) Separation
title_full Development of Pure Silica CHA Membranes for CO(2) Separation
title_fullStr Development of Pure Silica CHA Membranes for CO(2) Separation
title_full_unstemmed Development of Pure Silica CHA Membranes for CO(2) Separation
title_short Development of Pure Silica CHA Membranes for CO(2) Separation
title_sort development of pure silica cha membranes for co(2) separation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8708445/
https://www.ncbi.nlm.nih.gov/pubmed/34940427
http://dx.doi.org/10.3390/membranes11120926
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