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- Material Type
- 文書・図像類
- Author/Editor
- 筒井, 俊雄
- Author Heading
- Publication, Distribution, etc.
- Alternative Title
- Investigation on bio-factory reaction technology for manufacturing fundamental chemicals from biomass resources
- Text Language Code
- jpn
- Target Audience
- 一般
- Note (General)
- 2009-2011年度科学研究費助成事業(科学研究費補助金(基盤研究(B)))研究成果報告書 課題番号：21310056 研究代表者：筒井俊雄 (鹿児島大学大学院理工学研究科(工学系)教授)バイオマスの化学原料化プロセス技術を確立するため、廃糖蜜やバガスを原料として、前処理工程の水熱反応とその生成物をゼオライト触媒で改質する工程の触媒反応に関する研究を行った。バイオマスの前処理として、水のみおよび酸を加えた条件でバガスや廃糖蜜の水熱反応を行い、最適な反応条件、生成物収率、酸の影響などを明らかにした。また、前処理工程で得られる含酸素化合物によって、次の触媒反応工程における最終生成物の種類や収率が受ける影響について検討した。その結果、水熱処理においてレブリン酸まで分解するとBTX収率が最大となるが、5-ヒドロキシメチルフルフラールやグリコールアルデヒドなどでは単環芳香族とナフタレン環芳香族が得られ、単糖類だとナフタレン環芳香族とコークの生成が増大することがわかった。BTX収率の増大やコークの抑制にはゼオライトの細孔内への原料分子の拡散が重要であり、非定常反応操作などが有効であることを示した。In order to establish a conversion process from biomass into basic chemicals, the hydrothermal conversion of bagasse or molasses in the pre-treating step and the catalytic conversion of the pre-treating products with zeolite catalyst in the second step were investigated. As the pre-treating of the biomass, hydrothermal reaction of the bagasse or molasses using only water or acid-added water was carried out, and the suitable conditions, product yields and the effect of using acid were clarified. The effect of intermediate species obtained in the pre-treating step on the species and yields of the product in the catalytic conversion step was also investigated. As a results, it was concluded that BTX was mainly obtained from levulinic acid, mixture of mono- and di-aromatic chemicals from 5-hydroxymethylfurfural or glycolaldehyde, and mainly di-aromatic chemicals and coke from mono-saccharides. For enhancing BTX yields and reducing coke formation, it was found that the diffusion of the intermediates into zeolite pores was important and the unsteady-state reaction operation was an effective reaction method.