Method and system for the production of solids from raw materials.

摘要

Method and system for the production of solids from raw materials. These materials are subjected to a continuous torrefaction treatment at a temperature of between 200 and 320°C. Heating takes place by means of circulating gases that entor into direct heat exchange with the raw materials fed to the torrefaction chamber. The ga.es liberated during torrefaction are combusted while feeding in oxygen and discharged after the beat has been extracted from the flue gas thus produced. The heat from the flue gas is used to heat the gaseous medium that is fed to the torrefaction chamber. The production of effluent is prevented in that the condensate formed in the process is combusteal, optionally after specific purification steps.