2009 Fiscal Year Final Research Report
Reaction mechanism of starch hydrolysis over solid acid catalysts and its application for cellulose hydrolysis
| Project/Area Number |
20760532
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Catalyst/Resource chemical process
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| Research Institution | Kochi University |
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Principal Investigator |
ONDA Ayumu Kochi University, 教育研究部・自然科学系, 助教 (80335918)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 環境材料 / 触媒・化学プロセス / バイオマス |
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| Research Abstract |
The mildly hydrothermal methods (below 180℃) using solid acid catalysts for the glucose production from cellulose can be one of key technologies for the future sustainable society. In this project, I studied the solid acid catalysis for the hydrolysis of soluble starch with (alfa)-1,4-glycosidic bonds and insoluble cellulose with (beta)-1,4-glycosidic bonds into glucose. Among the solid acid catalysts we tested, such as the H-form zeolite catalysts and the sulfated and sulfonated catalysts, a sulfonated activated-carbon (AC-SO_3H) catalyst show remarkably high yield of glucose, which is due to the high hydrothermal stability and the excellent catalytic property attributed to the strong acid sites of SO_3H functional groups. The catalytic hydrothermal methods using AC-SO_3H catalyst gave the highly selective glucose production from cellulose at 150℃.
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