BIOMASS CARBONIZATION METHOD AND BIOMASS CARBONIZATION DEVICE

摘要

The purpose is to provide a biomass carbonization device (10) and a biomass carbonization method for thermally degrading a biomass (M) to obtain a carbonized product (C) at a higher yield than in the past. The biomass carbonization device has a temperature control unit (16) for controlling the temperature inside a carbonization furnace (11). The temperature control unit controls the temperature of the lower part of the packed moving bed (P) of the biomass to at or above a tar vapor generation temperature that thermally degrades the biomass and generates tar vapor, and controls the temperature of the upper part of the packed moving bed to at or below a tar condensation temperature that condenses the tar vapor. In the carbonization furnace, tar vapor generated in the lower part of the packed moving bed is condensed in the upper part and made into liquid tar; the liquid tar is trapped by the biomass in the packed moving bed, and the trapped liquid tar is thermally degraded together with the biomass and converted into a carbonized product.