Attention : the quality of coal obtained at 400°C is not the optimal (65% pure carbon). A temperature of 500°C allows the production of better quality coal (around 85% of pure carbon). Therefore, a supply of energy is needed by the combustion of a part of the created coal, to raise the temperate to 500°C. The difficulty of carbonisation is therefore controlling the inflow of oxygen in order to ensure that the combustion of coal is kept as minimal as possible for the production of good quality coal.
Français
English
Deutsch
Español
Italiano
Português