• January 5, 2026
Hydrothermal carbonized coal

Hydrothermal carbonized coal (often referred to as hydrochar when produced from biomass, or as hydrothermally upgraded coal when applied to low-rank coals) is a product of a wet, moderate-temperature thermochemical…

  • January 4, 2026
Bio-coal

Bio-coal (sometimes called torrefied biomass or hydrochar, depending on the production method) is an engineered solid fuel produced from biological feedstocks that aims to match many properties of fossil **coal**…