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Simultaneous Production of Aromatics and CO(x)-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study

As an alternative route for aromatics and hydrogen production, methane dehydroaromatization (MDA) is of significant academic and industrial interest due to the abundance of natural gas resources and the intensive demand for aromatics and CO(x)-free hydrogen. In the present work, a simulation study o...

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Autores principales: Ye, Feng, Fan, Shuanshi, Li, Wenjun, Wang, Yanhong, Lang, Xuemei, Zhang, Jianli, Li, Jing, Li, Gang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9785898/
https://www.ncbi.nlm.nih.gov/pubmed/36557082
http://dx.doi.org/10.3390/membranes12121175
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author Ye, Feng
Fan, Shuanshi
Li, Wenjun
Wang, Yanhong
Lang, Xuemei
Zhang, Jianli
Li, Jing
Li, Gang
author_facet Ye, Feng
Fan, Shuanshi
Li, Wenjun
Wang, Yanhong
Lang, Xuemei
Zhang, Jianli
Li, Jing
Li, Gang
author_sort Ye, Feng
collection PubMed
description As an alternative route for aromatics and hydrogen production, methane dehydroaromatization (MDA) is of significant academic and industrial interest due to the abundance of natural gas resources and the intensive demand for aromatics and CO(x)-free hydrogen. In the present work, a simulation study on MDA in membrane reactors (MRs) was performed with the aim of co-producing aromatics and CO(x)-free hydrogen with a highly improved efficiency. The effects of various parameters, including catalytic activity, membrane flux and selectivity, as well as the operating conditions on the MR performance were discussed with respect to methane conversion, hydrogen yield, and hydrogen purity. The results show that catalytic activity and membrane flux and selectivity have significant impacts on CH(4) conversion and H(2) yield, whereas H(2) purity is mainly dominated by membrane selectivity. A highly improved MDA is confirmed to be feasible at a relatively low temperature and a high feed pressure because of the hydrogen extraction effect. To further improve MDA in MRs by intensifying H(2) extraction, a simple configuration combining a fixed-bed reactor (FBR) and an MR together is proposed for MDA, which demonstrates good potential for the high-efficiency co-production of aromatics and CO(x)-free hydrogen.
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spelling pubmed-97858982022-12-24 Simultaneous Production of Aromatics and CO(x)-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study Ye, Feng Fan, Shuanshi Li, Wenjun Wang, Yanhong Lang, Xuemei Zhang, Jianli Li, Jing Li, Gang Membranes (Basel) Article As an alternative route for aromatics and hydrogen production, methane dehydroaromatization (MDA) is of significant academic and industrial interest due to the abundance of natural gas resources and the intensive demand for aromatics and CO(x)-free hydrogen. In the present work, a simulation study on MDA in membrane reactors (MRs) was performed with the aim of co-producing aromatics and CO(x)-free hydrogen with a highly improved efficiency. The effects of various parameters, including catalytic activity, membrane flux and selectivity, as well as the operating conditions on the MR performance were discussed with respect to methane conversion, hydrogen yield, and hydrogen purity. The results show that catalytic activity and membrane flux and selectivity have significant impacts on CH(4) conversion and H(2) yield, whereas H(2) purity is mainly dominated by membrane selectivity. A highly improved MDA is confirmed to be feasible at a relatively low temperature and a high feed pressure because of the hydrogen extraction effect. To further improve MDA in MRs by intensifying H(2) extraction, a simple configuration combining a fixed-bed reactor (FBR) and an MR together is proposed for MDA, which demonstrates good potential for the high-efficiency co-production of aromatics and CO(x)-free hydrogen. MDPI 2022-11-22 /pmc/articles/PMC9785898/ /pubmed/36557082 http://dx.doi.org/10.3390/membranes12121175 Text en © 2022 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
Ye, Feng
Fan, Shuanshi
Li, Wenjun
Wang, Yanhong
Lang, Xuemei
Zhang, Jianli
Li, Jing
Li, Gang
Simultaneous Production of Aromatics and CO(x)-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study
title Simultaneous Production of Aromatics and CO(x)-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study
title_full Simultaneous Production of Aromatics and CO(x)-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study
title_fullStr Simultaneous Production of Aromatics and CO(x)-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study
title_full_unstemmed Simultaneous Production of Aromatics and CO(x)-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study
title_short Simultaneous Production of Aromatics and CO(x)-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study
title_sort simultaneous production of aromatics and co(x)-free hydrogen via methane dehydroaromatization in membrane reactors: a simulation study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9785898/
https://www.ncbi.nlm.nih.gov/pubmed/36557082
http://dx.doi.org/10.3390/membranes12121175
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