Simultaneous Production of Aromatics and CO<sub>x</sub>-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<sub>x</sub>-free hydrogen. In the present work,...
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MDPI AG
2022-11-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/12/12/1175 |
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| author | Feng Ye Shuanshi Fan Wenjun Li Yanhong Wang Xuemei Lang Jianli Zhang Jing Li Gang Li |
| author_facet | Feng Ye Shuanshi Fan Wenjun Li Yanhong Wang Xuemei Lang Jianli Zhang Jing Li Gang Li |
| author_sort | Feng Ye |
| collection | DOAJ |
| 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<sub>x</sub>-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<sub>x</sub>-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<sub>4</sub> conversion and H<sub>2</sub> yield, whereas H<sub>2</sub> 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<sub>2</sub> 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<sub>x</sub>-free hydrogen. |
| first_indexed | 2024-03-09T16:07:02Z |
| format | Article |
| id | doaj.art-9fe55c337c1d4eb7a82835ecd0baaaf9 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-09T16:07:02Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-9fe55c337c1d4eb7a82835ecd0baaaf92023-11-24T16:34:44ZengMDPI AGMembranes2077-03752022-11-011212117510.3390/membranes12121175Simultaneous Production of Aromatics and CO<sub>x</sub>-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation StudyFeng Ye0Shuanshi Fan1Wenjun Li2Yanhong Wang3Xuemei Lang4Jianli Zhang5Jing Li6Gang Li7School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaSchool of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaBeijing Institute of Spacecraft System Engineering, Beijing 100086, ChinaSchool of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaSchool of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaState Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, ChinaSchool of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaSchool of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, ChinaAs 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<sub>x</sub>-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<sub>x</sub>-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<sub>4</sub> conversion and H<sub>2</sub> yield, whereas H<sub>2</sub> 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<sub>2</sub> 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<sub>x</sub>-free hydrogen.https://www.mdpi.com/2077-0375/12/12/1175methane dehydroaromatizationmembrane reactorCO<sub>x</sub>-free hydrogenaromaticshydrogen separation |
| spellingShingle | Feng Ye Shuanshi Fan Wenjun Li Yanhong Wang Xuemei Lang Jianli Zhang Jing Li Gang Li Simultaneous Production of Aromatics and CO<sub>x</sub>-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study Membranes methane dehydroaromatization membrane reactor CO<sub>x</sub>-free hydrogen aromatics hydrogen separation |
| title | Simultaneous Production of Aromatics and CO<sub>x</sub>-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study |
| title_full | Simultaneous Production of Aromatics and CO<sub>x</sub>-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study |
| title_fullStr | Simultaneous Production of Aromatics and CO<sub>x</sub>-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study |
| title_full_unstemmed | Simultaneous Production of Aromatics and CO<sub>x</sub>-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study |
| title_short | Simultaneous Production of Aromatics and CO<sub>x</sub>-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study |
| title_sort | simultaneous production of aromatics and co sub x sub free hydrogen via methane dehydroaromatization in membrane reactors a simulation study |
| topic | methane dehydroaromatization membrane reactor CO<sub>x</sub>-free hydrogen aromatics hydrogen separation |
| url | https://www.mdpi.com/2077-0375/12/12/1175 |
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