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Bench-Scale Membrane Reactor for Methylcyclohexane Dehydrogenation Using Silica Membrane Module
Methylcyclohexane-toluene system is one of the most promising methods for hydrogen transport/storage. The methylcyclohexane dehydrogenation can be exceeded by the equilibrium conversion using membrane reactor. However, the modularization of the membrane reactor and manufacturing longer silica membra...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8170893/ https://www.ncbi.nlm.nih.gov/pubmed/33946729 http://dx.doi.org/10.3390/membranes11050326 |
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author | Seshimo, Masahiro Urai, Hiromi Sasa, Kazuaki Nishino, Hitoshi Yamaguchi, Yuichiro Nishida, Ryoichi Nakao, Shin-ichi |
author_facet | Seshimo, Masahiro Urai, Hiromi Sasa, Kazuaki Nishino, Hitoshi Yamaguchi, Yuichiro Nishida, Ryoichi Nakao, Shin-ichi |
author_sort | Seshimo, Masahiro |
collection | PubMed |
description | Methylcyclohexane-toluene system is one of the most promising methods for hydrogen transport/storage. The methylcyclohexane dehydrogenation can be exceeded by the equilibrium conversion using membrane reactor. However, the modularization of the membrane reactor and manufacturing longer silica membranes than 100 mm are little developed. Herein, we have developed silica membrane with practical length by a counter-diffusion chemical vapor deposition method, and membrane reactor module bundled multiple silica membranes. The developed 500 mm-length silica membrane had high hydrogen permselective performance (H(2) permeance > 1 × 10(−6) mol m(−2) s(−1) Pa(−1), H(2)/SF(6) selectivity > 10,000). In addition, we successfully demonstrated effective methylcyclohexane dehydrogenation using a flange-type membrane reactor module, which was installed with 6 silica membranes. The results indicated that conversion of methylcyclohexane was around 85% at 573 K, whereas the equilibrium conversion was 42%. |
format | Online Article Text |
id | pubmed-8170893 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-81708932021-06-03 Bench-Scale Membrane Reactor for Methylcyclohexane Dehydrogenation Using Silica Membrane Module Seshimo, Masahiro Urai, Hiromi Sasa, Kazuaki Nishino, Hitoshi Yamaguchi, Yuichiro Nishida, Ryoichi Nakao, Shin-ichi Membranes (Basel) Article Methylcyclohexane-toluene system is one of the most promising methods for hydrogen transport/storage. The methylcyclohexane dehydrogenation can be exceeded by the equilibrium conversion using membrane reactor. However, the modularization of the membrane reactor and manufacturing longer silica membranes than 100 mm are little developed. Herein, we have developed silica membrane with practical length by a counter-diffusion chemical vapor deposition method, and membrane reactor module bundled multiple silica membranes. The developed 500 mm-length silica membrane had high hydrogen permselective performance (H(2) permeance > 1 × 10(−6) mol m(−2) s(−1) Pa(−1), H(2)/SF(6) selectivity > 10,000). In addition, we successfully demonstrated effective methylcyclohexane dehydrogenation using a flange-type membrane reactor module, which was installed with 6 silica membranes. The results indicated that conversion of methylcyclohexane was around 85% at 573 K, whereas the equilibrium conversion was 42%. MDPI 2021-04-29 /pmc/articles/PMC8170893/ /pubmed/33946729 http://dx.doi.org/10.3390/membranes11050326 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 Seshimo, Masahiro Urai, Hiromi Sasa, Kazuaki Nishino, Hitoshi Yamaguchi, Yuichiro Nishida, Ryoichi Nakao, Shin-ichi Bench-Scale Membrane Reactor for Methylcyclohexane Dehydrogenation Using Silica Membrane Module |
title | Bench-Scale Membrane Reactor for Methylcyclohexane Dehydrogenation Using Silica Membrane Module |
title_full | Bench-Scale Membrane Reactor for Methylcyclohexane Dehydrogenation Using Silica Membrane Module |
title_fullStr | Bench-Scale Membrane Reactor for Methylcyclohexane Dehydrogenation Using Silica Membrane Module |
title_full_unstemmed | Bench-Scale Membrane Reactor for Methylcyclohexane Dehydrogenation Using Silica Membrane Module |
title_short | Bench-Scale Membrane Reactor for Methylcyclohexane Dehydrogenation Using Silica Membrane Module |
title_sort | bench-scale membrane reactor for methylcyclohexane dehydrogenation using silica membrane module |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8170893/ https://www.ncbi.nlm.nih.gov/pubmed/33946729 http://dx.doi.org/10.3390/membranes11050326 |
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