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May 26, 2026Chemical Engineering Journal0 citationsOpen Access

Scalable CO₂ dissociation via supersonic MPD plasma jets

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ASAdrian Scurtu

Key Points

  • This research aims to enhance CO₂ dissociation through supersonic MPD plasma jets while addressing thermal limitations.
  • Utilized low-pressure plasma reactors to achieve supersonic expansion at Mach 5-6.
  • Developed a gas-dynamic framework for scalable plasma reactor design.
  • Conducted validation experiments to measure CO₂ dissociation efficiency at native Martian pressure.
  • Achieved 11.98 eV per CO₂ molecule with suppressed thermal choking.
  • Reduced recombination rates by approximately 100 times, allowing for continuous conversion growth without early saturation.
  • Demonstrated effective operation at Martian pressure, eliminating the need for energy-intensive upstream compression.

Abstract

• Volumetric expansion suppresses thermal choking in low-pressure plasma reactors • Supersonic expansion (M ≈ 5–6) preserves vibrational non-equilibrium, enabling 11.98 eV/CO₂ • ~100× reduction in recombination enables linear conversion growth instead of early saturation • Operation at native Martian pressure avoids upstream compression energy penalties • General gas-dynamic framework validated for scalable plasma reactor design

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Adrian Scurtu (2026) studied this question.

synapsesocial.com/papers/6a153b00b5d9c58d83e8d381https://doi.org/10.1016/j.cej.2026.177676
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