| Project/Area Number |
15360429
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Catalyst/Resource chemical process
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
MAE Kazuhiro KYOTO UNIVERSITY, Engineering, Professor, 工学研究科, 教授 (70192325)
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| Co-Investigator(Kenkyū-buntansha) |
MAKI Taisuke KYOTO UNIVERSITY, Engineering, Assistant professor, 工学研究科, 助手 (10293987)
HASEGAWA Isao KYOTO UNIVERSITY, Engineering, Assistant professor, 工学研究科, 助手 (20346092)
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| Project Period (FY) |
2003 – 2004
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| Project Status |
Completed (Fiscal Year 2004)
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| Budget Amount *help |
¥15,200,000 (Direct Cost: ¥15,200,000)
Fiscal Year 2004: ¥5,400,000 (Direct Cost: ¥5,400,000)
Fiscal Year 2003: ¥9,800,000 (Direct Cost: ¥9,800,000)
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| Keywords | Biomass / Dewatering in oil / Hydrothermal treatment / Low temperature gasification / Pretreatment |
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| Research Abstract |
To convert efficiently biomass wastes into energy, several problems such as high water content, quality change in material, tar evolution, etc. should be qualified. In this study, we proposed a new method combined oil dewatering and low temperature pyrolysis, and examine in detail the following items.
1) Development of a new dewatering and upgrade method for wet biomass
2) Production of gasification catalyst from wet biomass though low temperature pyrolysis
First, we examine the dewatering of several wet biomass, and then clarified that the combination of the hydrothermal treatment at 250 C and the oil dewatering at 180 C brought about an excellent modified biomass having a high calorific value of 35.5MJ/kg. The value was comparable to that of high volatile sub-bituminous coal, which is used as a material of power plant.
Secondly, we found that the tar was restricted, on the contrary chat increased during the pyrolysis biomass by impregnating Ca(OH)2. The char was very active, and utilized as a gasification catalyst.
Finally, we clarified the relationship between each yield and H/C of biomass, and a new method for estimating the quality of pyrolyzed char utilizing CHO chart.
Thus, it was clarified that the proposed methods were useful for converting wet biomass into energy and chemicals.
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