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Energy-Efficient CO 2 Conversion for Carbon Utilization Using a Gliding Arc/Glow Discharge with Magnetic Field Acceleration—Optimization and Characterization

Author

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  • Svetlana Lazarova

    (Faculty of Physics, Sofia University, 1164 Sofia, Bulgaria)

  • Snejana Iordanova

    (Faculty of Physics, Sofia University, 1164 Sofia, Bulgaria
    National Centre of Excellence Mechatronics and Clean Technologies, Sofia University, 1164 Sofia, Bulgaria)

  • Stanimir Kolev

    (Faculty of Physics, Sofia University, 1164 Sofia, Bulgaria
    National Centre of Excellence Mechatronics and Clean Technologies, Sofia University, 1164 Sofia, Bulgaria)

  • Veselin Vasilev

    (Faculty of Physics, Sofia University, 1164 Sofia, Bulgaria
    National Centre of Excellence Mechatronics and Clean Technologies, Sofia University, 1164 Sofia, Bulgaria)

  • Tsvetelina Paunska

    (Faculty of Physics, Sofia University, 1164 Sofia, Bulgaria
    National Centre of Excellence Mechatronics and Clean Technologies, Sofia University, 1164 Sofia, Bulgaria)

Abstract

The dry conversion of CO 2 into CO and O 2 provides an attractive path for CO 2 utilization which allows for the use of the CO produced for the synthesis of valuable hydrocarbons. In the following work, the CO 2 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 2 ’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 2 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.

Suggested Citation

  • Svetlana Lazarova & Snejana Iordanova & Stanimir Kolev & Veselin Vasilev & Tsvetelina Paunska, 2025. "Energy-Efficient CO 2 Conversion for Carbon Utilization Using a Gliding Arc/Glow Discharge with Magnetic Field Acceleration—Optimization and Characterization," Energies, MDPI, vol. 18(14), pages 1-21, July.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:14:p:3816-:d:1704049
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    References listed on IDEAS

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    1. Jie Huang & Hongyang Lu & Minzhe Du, 2025. "Regional Differences in Agricultural Carbon Emissions in China: Measurement, Decomposition, and Influencing Factors," Land, MDPI, vol. 14(4), pages 1-25, March.
    2. Vera Marcantonio & Marcello De Falco & Enrico Bocci, 2022. "Non-Thermal Plasma Technology for CO 2 Conversion—An Overview of the Most Relevant Experimental Results and Kinetic Models," Energies, MDPI, vol. 15(20), pages 1-18, October.
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