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Puppet Strings of Hydrogen Plasma Reduct

ANNA SHELYUG, HENRI PAUNA

2026enhydrogenplasmareductionmetallurgyironkinetics

Abstract

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This study explores the reduction effect of hydrogen plasma on iron ores, specifically magnetite, using an arc reactor while varying process parameters such as pressure, arc current, and electrode-to-sample distance. The objective was to evaluate the impact of these parameters on plasma properties and reduction kinetics. Methodologically, a combination of thermodynamic modeling and experimental approaches analyzed the reduction effectiveness, revealing that higher pressures enhance metallic yield by minimizing iron evaporation. Notably, reductions achieved up to 89.4% at 900 mbar pressure. Kinetic analyses highlighted rapid conversion of magnetite to wüstite within the initial 5 minutes and stabilization of metallic iron formation after 15 minutes, with higher arc currents accelerating reduction but at an increased energy cost. Comprehensive plasma characterization through optical emission spectroscopy was conducted to assess hydrogen utilization efficiency and other related emissions impacting plasma behavior. The optimal energetic efficiency was identified at 900 mbar, 200 A, and 10 mm electrode-to-sample distance, illustrating a balance between achieving high metallic yield and managing energy consumption.

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@article{22c82806-276c-446b-ac8c-5c9f9780eb6e,
  title={Puppet Strings of Hydrogen Plasma Reduct},
  author={ANNA SHELYUG and HENRI PAUNA},
  year={2026},
  language={en}
}
TY  - JOUR
TI  - Puppet Strings of Hydrogen Plasma Reduct
AU  - ANNA SHELYUG
AU  - HENRI PAUNA
PY  - 2026
LA  - en
ER  -

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