| 摘要 |
PROBLEM TO BE SOLVED: To obtain higher monosaccharide conversion than those of conventional methods on the production of the monosaccharide with concentrated sulfuric acid. SOLUTION: This method for producing the monosaccharide from the biomass is characterized by comprising the first treatment process 1 for treating the biomass of raw material in 10 to 40 mass % sulfuric acid at a temperature of 60 to 95°C, the first solid-liquid separation process 2 for subjecting the first treatment process product treated in the first treatment process 1 to a solid-liquid separation treatment, the second treatment process 7 for treating the solid products separated in the first solid-liquid separation process 2 in 65 to 85 mass % sulfuric acid at a temperature of 30 to 70°C, the third treatment process 8 for treating the second treatment process product treated in the second treatment process 7 in 20 to 60 mass % sulfuric acid at a temperature of 40 to 100°C, the second solid-liquid separation process 9 for subjecting the third treatment process product treated in the third treatment process 8 to a solid-liquid separation treatment, and a filtrate (2) introduction process 11 for introducing the filtrate (2) separated in the second solid-liquid separation process 9 to the first treatment process 1. COPYRIGHT: (C)2005,JPO&NCIPI
|
