Energy-Efficient CO<sub>2</sub> Conversion for Carbon Utilization Using a Gliding Arc/Glow Discharge with Magnetic Field Acceleration—Optimization and Characterization
The dry conversion of CO<sub>2</sub> into CO and O<sub>2</sub> provides an attractive path for CO<sub>2</sub> utilization which allows for the use of the CO produced for the synthesis of valuable hydrocarbons. In the following work, the CO<sub>2</sub>...
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| Online Access: | https://www.mdpi.com/1996-1073/18/14/3816 |
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| author | Svetlana Lazarova Snejana Iordanova Stanimir Kolev Veselin Vasilev Tsvetelina Paunska |
| author_facet | Svetlana Lazarova Snejana Iordanova Stanimir Kolev Veselin Vasilev Tsvetelina Paunska |
| author_sort | Svetlana Lazarova |
| collection | DOAJ |
| description | The dry conversion of CO<sub>2</sub> into CO and O<sub>2</sub> provides an attractive path for CO<sub>2</sub> utilization which allows for the use of the CO produced for the synthesis of valuable hydrocarbons. In the following work, the CO<sub>2</sub> conversion is driven by an arc discharge at atmospheric pressure, producing hot plasma. This study presents a series of experiments aiming to optimize the process. The results obtained include the energy efficiency and the conversion rate of the process, as well as the electrical parameters of the discharge (current and voltage signals). In addition, optical emission spectroscopy diagnostics based on an analysis of C<sub>2</sub>’s Swan bands are used to determine the gas temperature in the discharge. The data is analyzed according to several aspects—an analysis of the arc’s motion based on the electrical signals; an analysis of the effect of the gas flow and the discharge current on the discharge performance for CO<sub>2</sub> conversion; and an analysis of the vibrational and rotational temperatures of the arc channel. The results show significant improvements over previous studies. Relatively high gas conversion and energy efficiency are achieved due to the arc acceleration caused by the Lorentz force. The rotational (gas) temperatures are in the order of 5500–6000 K. |
| format | Article |
| id | doaj-art-c715a55e0b6e4eef86b603fe69325751 |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-c715a55e0b6e4eef86b603fe693257512025-08-20T03:35:28ZengMDPI AGEnergies1996-10732025-07-011814381610.3390/en18143816Energy-Efficient CO<sub>2</sub> Conversion for Carbon Utilization Using a Gliding Arc/Glow Discharge with Magnetic Field Acceleration—Optimization and CharacterizationSvetlana Lazarova0Snejana Iordanova1Stanimir Kolev2Veselin Vasilev3Tsvetelina Paunska4Faculty of Physics, Sofia University, 1164 Sofia, BulgariaFaculty of Physics, Sofia University, 1164 Sofia, BulgariaFaculty of Physics, Sofia University, 1164 Sofia, BulgariaFaculty of Physics, Sofia University, 1164 Sofia, BulgariaFaculty of Physics, Sofia University, 1164 Sofia, BulgariaThe dry conversion of CO<sub>2</sub> into CO and O<sub>2</sub> provides an attractive path for CO<sub>2</sub> utilization which allows for the use of the CO produced for the synthesis of valuable hydrocarbons. In the following work, the CO<sub>2</sub> conversion is driven by an arc discharge at atmospheric pressure, producing hot plasma. This study presents a series of experiments aiming to optimize the process. The results obtained include the energy efficiency and the conversion rate of the process, as well as the electrical parameters of the discharge (current and voltage signals). In addition, optical emission spectroscopy diagnostics based on an analysis of C<sub>2</sub>’s Swan bands are used to determine the gas temperature in the discharge. The data is analyzed according to several aspects—an analysis of the arc’s motion based on the electrical signals; an analysis of the effect of the gas flow and the discharge current on the discharge performance for CO<sub>2</sub> conversion; and an analysis of the vibrational and rotational temperatures of the arc channel. The results show significant improvements over previous studies. Relatively high gas conversion and energy efficiency are achieved due to the arc acceleration caused by the Lorentz force. The rotational (gas) temperatures are in the order of 5500–6000 K.https://www.mdpi.com/1996-1073/18/14/3816carbon utilizationcarbon dioxide (CO<sub>2</sub>) conversiongliding arc dischargemagnetically accelerated gliding discharge |
| spellingShingle | Svetlana Lazarova Snejana Iordanova Stanimir Kolev Veselin Vasilev Tsvetelina Paunska Energy-Efficient CO<sub>2</sub> Conversion for Carbon Utilization Using a Gliding Arc/Glow Discharge with Magnetic Field Acceleration—Optimization and Characterization Energies carbon utilization carbon dioxide (CO<sub>2</sub>) conversion gliding arc discharge magnetically accelerated gliding discharge |
| title | Energy-Efficient CO<sub>2</sub> Conversion for Carbon Utilization Using a Gliding Arc/Glow Discharge with Magnetic Field Acceleration—Optimization and Characterization |
| title_full | Energy-Efficient CO<sub>2</sub> Conversion for Carbon Utilization Using a Gliding Arc/Glow Discharge with Magnetic Field Acceleration—Optimization and Characterization |
| title_fullStr | Energy-Efficient CO<sub>2</sub> Conversion for Carbon Utilization Using a Gliding Arc/Glow Discharge with Magnetic Field Acceleration—Optimization and Characterization |
| title_full_unstemmed | Energy-Efficient CO<sub>2</sub> Conversion for Carbon Utilization Using a Gliding Arc/Glow Discharge with Magnetic Field Acceleration—Optimization and Characterization |
| title_short | Energy-Efficient CO<sub>2</sub> Conversion for Carbon Utilization Using a Gliding Arc/Glow Discharge with Magnetic Field Acceleration—Optimization and Characterization |
| title_sort | energy efficient co sub 2 sub conversion for carbon utilization using a gliding arc glow discharge with magnetic field acceleration optimization and characterization |
| topic | carbon utilization carbon dioxide (CO<sub>2</sub>) conversion gliding arc discharge magnetically accelerated gliding discharge |
| url | https://www.mdpi.com/1996-1073/18/14/3816 |
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