Patent ID: 8105400
Filing Date: 2012-01-31
Classification: C10B,C10L,Y02E

Abstract:
1. A process for treating a material having biomass or waste product, the process comprising: provision of the material that contains an amount of residual moisture, provision of a torrefaction reactor, heating of the material in the torrefaction reactor to a torrefying temperature in a low-oxygen atmosphere in the torrefaction reactor, wherein the material is converted into a torrefied material, in which the material with the amount of residual moisture is essentially fully dried in a drying chamber by evaporation of the amount of residual moisture, and the torrefaction of the dried material is essentially carried out in a torrefying chamber of the torrefaction reactor, and the material is conveyed through the torrefaction reactor in a transport direction, and the drying of the material in the drying chamber is carried out by introducing into the material a hot drying gas that flows through the drying chamber in co-current with the transport direction of the material, and the torrefaction of the material in the torrefying chamber of the torrefaction reactor is carried out by introducing into the material a hot torrefying gas that flows through the torrefying chamber of the torrefaction reactor in counter-current to the transport direction of the material.