Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Seshimo, Masahiro, Urai, Hiromi, Sasa, Kazuaki, Nishino, Hitoshi, Yamaguchi, Yuichiro, Nishida, Ryoichi, Nakao, Shin-ichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
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
_version_ 1783702329022742528
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
work_keys_str_mv AT seshimomasahiro benchscalemembranereactorformethylcyclohexanedehydrogenationusingsilicamembranemodule
AT uraihiromi benchscalemembranereactorformethylcyclohexanedehydrogenationusingsilicamembranemodule
AT sasakazuaki benchscalemembranereactorformethylcyclohexanedehydrogenationusingsilicamembranemodule
AT nishinohitoshi benchscalemembranereactorformethylcyclohexanedehydrogenationusingsilicamembranemodule
AT yamaguchiyuichiro benchscalemembranereactorformethylcyclohexanedehydrogenationusingsilicamembranemodule
AT nishidaryoichi benchscalemembranereactorformethylcyclohexanedehydrogenationusingsilicamembranemodule
AT nakaoshinichi benchscalemembranereactorformethylcyclohexanedehydrogenationusingsilicamembranemodule