| 摘要 |
PROBLEM TO BE SOLVED: To provide a device and a method for carbonizing biomass to obtain a carbonized product in a high yield, by thermally decomposing the biomass.SOLUTION: In a device 10 for carbonizing biomass provided with a carbonization furnace for producing a carbonized product, by supplying the biomass from an upper part of a vertical type carbonization furnace 11, to form a biomass-packed moving bed in the carbonization furnace, by supplying high-temperature gas from a lower side of the carbonization furnace, and by bringing the biomass into contact with the high-temperature gas, to be decomposed thermally, the device 10 for carbonizing the biomass includes a temperature control device 16 for controlling the temperature of an inside of the carbonization furnace 11, and the temperature control device 16 is set to control the temperature of the packed moving bed upper part at a drying temperature for evaporating contained moisture of the biomass to be dried, or higher, and at a tar condensation temperature for condensing tar, or lower, and to control the temperature of the packed moving bed lower part at a tar volatilization temperature for decomposing thermally the biomass to vaporize the tar, or higher, and at a gas generation temperature for decomposing thermally the biomass to generate gas, or lower, in order to establish prescribed temperature ranges. |
