Publikationen

2026

Carburization in direct reduction: Effects of various CO-H2 gas mixtures
https://doi.org/10.1016/j.partic.2026.04.014

Highlights

  • Pure H2 gives fast reduction, full metallization, and a dense uniform α-Fe structure.

  • Pure CO exhibits slow reduction and forms iron whiskers at 1273 K with minimal carbon.

  • H2/CO forms carburized structures, which potentially hinder reduction.

  • Simulated biogenic gas attains high metallization with controlled carburization.

  • The 1D porous-solid model links oxygen removal, carbon uptake, and carbide formation.

 

Optimization and characterization of biochars from biogenic residues for application in self-reducing pellets for direct reduction ironmaking

https://doi.org/10.1016/j.biombioe.2026.109784

Highlights

  • DoE optimized residue-derived biochars for metallurgical application.

  • Ash content governed mainly by precursor types, not pyrolysis conditions.

  • Optimized waste wood biochar reaches 91.7 % fixed carbon with 4 % of ash content.

  • Reactivity depends on carbon ordering, surface area, and catalytic minerals.

  • Waste wood biochar is the most suitable reductant for SRP application.