Structured Catalysts for Non-Thermal Plasma-Assisted Ammonia Synthesis
Ammonia has been intensively studied as a clean, sustainable fuel source and an efficient energy storage medium due to its effectiveness as a hydrogen carrier molecule. However, the currently used Haber–Bosch process requires a large fossil fuel input, high temperatures and pressures, as well as a s...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/7/3218 |
| _version_ | 1827746855522402304 |
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| author | Eugenio Meloni Liberato Cafiero Marco Martino Vincenzo Palma |
| author_facet | Eugenio Meloni Liberato Cafiero Marco Martino Vincenzo Palma |
| author_sort | Eugenio Meloni |
| collection | DOAJ |
| description | Ammonia has been intensively studied as a clean, sustainable fuel source and an efficient energy storage medium due to its effectiveness as a hydrogen carrier molecule. However, the currently used Haber–Bosch process requires a large fossil fuel input, high temperatures and pressures, as well as a significant capital investment. These constraints prevent decentralized and small-scale ammonia production at the level of small farms and local communities. Non-thermal plasma (NTP) can promote ammonia synthesis in operating conditions in which, in a conventional process, a catalyst is generally not active. In this study, the production of NTP-assisted catalytic ammonia at milder temperatures and ambient pressure was investigated. Four different structured catalysts were prepared and tested using an experimental plant based on a dielectric barrier discharge (DBD) reactor. The effect of the gas hourly space velocity (GHSV) was investigated, as well as the effect of the N<sub>2</sub>/H<sub>2</sub> ratio on catalyst performance. The results evidenced that the best catalytic activity (about 4 mmol h<sup>−1</sup> of produced NH<sub>3</sub>) was obtained using the 10Ni/zeolite 13X sample with the lowest energy consumption, thus highlighting the feasibility of this innovative technology in this field. |
| first_indexed | 2024-03-11T05:38:16Z |
| format | Article |
| id | doaj.art-e92ab7ff07aa443691b4de9480f8b16c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T05:38:16Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-e92ab7ff07aa443691b4de9480f8b16c2023-11-17T16:39:02ZengMDPI AGEnergies1996-10732023-04-01167321810.3390/en16073218Structured Catalysts for Non-Thermal Plasma-Assisted Ammonia SynthesisEugenio Meloni0Liberato Cafiero1Marco Martino2Vincenzo Palma3Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, ItalyAmmonia has been intensively studied as a clean, sustainable fuel source and an efficient energy storage medium due to its effectiveness as a hydrogen carrier molecule. However, the currently used Haber–Bosch process requires a large fossil fuel input, high temperatures and pressures, as well as a significant capital investment. These constraints prevent decentralized and small-scale ammonia production at the level of small farms and local communities. Non-thermal plasma (NTP) can promote ammonia synthesis in operating conditions in which, in a conventional process, a catalyst is generally not active. In this study, the production of NTP-assisted catalytic ammonia at milder temperatures and ambient pressure was investigated. Four different structured catalysts were prepared and tested using an experimental plant based on a dielectric barrier discharge (DBD) reactor. The effect of the gas hourly space velocity (GHSV) was investigated, as well as the effect of the N<sub>2</sub>/H<sub>2</sub> ratio on catalyst performance. The results evidenced that the best catalytic activity (about 4 mmol h<sup>−1</sup> of produced NH<sub>3</sub>) was obtained using the 10Ni/zeolite 13X sample with the lowest energy consumption, thus highlighting the feasibility of this innovative technology in this field.https://www.mdpi.com/1996-1073/16/7/3218non-thermal plasmaammonia productionprocess intensificationstructured catalysts |
| spellingShingle | Eugenio Meloni Liberato Cafiero Marco Martino Vincenzo Palma Structured Catalysts for Non-Thermal Plasma-Assisted Ammonia Synthesis Energies non-thermal plasma ammonia production process intensification structured catalysts |
| title | Structured Catalysts for Non-Thermal Plasma-Assisted Ammonia Synthesis |
| title_full | Structured Catalysts for Non-Thermal Plasma-Assisted Ammonia Synthesis |
| title_fullStr | Structured Catalysts for Non-Thermal Plasma-Assisted Ammonia Synthesis |
| title_full_unstemmed | Structured Catalysts for Non-Thermal Plasma-Assisted Ammonia Synthesis |
| title_short | Structured Catalysts for Non-Thermal Plasma-Assisted Ammonia Synthesis |
| title_sort | structured catalysts for non thermal plasma assisted ammonia synthesis |
| topic | non-thermal plasma ammonia production process intensification structured catalysts |
| url | https://www.mdpi.com/1996-1073/16/7/3218 |
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