| 摘要 |
PROBLEM TO BE SOLVED: To suppress the generation of by-products upon obtaining a carbonized product by heating and carbonizing a biomass such as wood flour in a pressurized hot water. SOLUTION: A mixture of a biomass as a raw material and water is injected from a raw material introducing pipe 1, while being pressurized by a booster pump 2, into the inflow side of a circulating pump 43 of a primary reactor 41. The mixture is discharged from the circulating pump 43, delivered to a heater 45, heated here to a temperature of 200-260°C and sent to a reactor vessel 47. In the reactor vessel 47 the hemicellulose in the biomass dissolves into hot water and undergoes carbonization reaction. The mixture from the primary reactor 41 is injected to the inflow side of a circulating pump 44 of a secondary reactor 42, sent to a heater 46, heated here to a temperature of 270-330°C and sent to the reactor vessel 47. In the reactor vessel 47 the cellulose in the biomass dissolves into hot water and undergoes carbonization. COPYRIGHT: (C)2006,JPO&NCIPI
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