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June 1, 2026Fuel Processing Technology0 citationsOpen Access

Experimental investigation on combustion behavior of pulverized silicon – part 1: Influence of particle size

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CBChristian BaumJMJörg MaierMRMarkus Reinmöller

Key Points

  • This study investigates how the particle size of silicon affects its combustion behavior.
  • Conducted ignition tests at 1300 °C in a drop tube reactor.
  • Utilized a bowl feeder for consistent silicon powder dosing.
  • Measured temperature changes and electric heater activity during combustion.
  • Finer silicon particles ignite and oxidize more quickly, leading to higher local temperatures.
  • NOx levels increase with smaller particle sizes due to faster oxidation rates.
  • Formation of a SiO₂ layer and agglomeration impacts oxidation progression.

Abstract

• Stable silicon powder ignition at 1300 °C in a drop tube reactor for minutes. • Finer particles oxidise faster, raising local temperature and NOx levels. • Bowl feeder ensures homogeneous, clump-free fuel dosing. • Measurements of temperature and electric heater indicate an exothermic reaction. • SiO₂ layer and agglomeration affect the progress of oxidation.

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Cite This Study

Baum et al. (2026) studied this question.

synapsesocial.com/papers/6a1d21e502fbce9130637c44https://doi.org/10.1016/j.fuproc.2026.108499
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