Towards High Efficiency CO<sub>2</sub> Utilization by Glow Discharge Plasma
Plasma technology reaches rapidly increasing efficiency in catalytic applications. One such application is the splitting reaction of CO<sub>2</sub> to oxygen and carbon monoxide. This reaction could be a cornerstone of power-to-X processes that utilize electricity to produce value-added...
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| Autores principales: | , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/bfcb5fc317414ab795fb5f628a21aafd |
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| Sumario: | Plasma technology reaches rapidly increasing efficiency in catalytic applications. One such application is the splitting reaction of CO<sub>2</sub> to oxygen and carbon monoxide. This reaction could be a cornerstone of power-to-X processes that utilize electricity to produce value-added compounds such as chemicals and fuels. However, it poses problems in practice due to its highly endothermal nature and challenging selectivity. In this communication a glow discharge plasma reactor is presented that achieves high energy efficiency in the CO<sub>2</sub> splitting reaction. To achieve this, a magnetic field is used to increase the discharge volume. Combined with laminar gas flow, this leads to even energy distribution in the working gas. Thus, the reactor achieves very high energy efficiency of up to 45% while also reaching high CO<sub>2</sub> conversion efficiency. These results are briefly explained and then compared to other plasma technologies. Lastly, cutting edge energy efficiencies of competing technologies such as CO<sub>2</sub> electrolysis are discussed in comparison. |
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