成果報告書詳細
管理番号20120000000741
タイトル*平成23年度中間年報 グリーン・サステイナブルケミカルプロセス基盤技術開発/化学品原料の転換・多様化を可能とする革新グリーン技術の開発/バイオマスの化成品転換のための熱化学反応技術基盤の構築とそれに基づく脂肪族、芳香族ポリマー製造プロセスの開発
公開日2012/7/12
報告書年度2011 - 2011
委託先名住友ベークライト株式会社 三菱レイヨン株式会社 国立大学法人京都大学
プロジェクト番号P09010
部署名電子・材料・ナノテクノロジー部
和文要約和文要約等以下本編抜粋:
1. 研究開発の内容及び成果等
研究項目[1] バイオマスの熱化学変換基盤技術の開発(京都大学)
[1]-1 バイオマスから各種化成品を製造するための熱化学変換法の開発
まず、アセトン水処理抽出/高温高圧加水分解というリグニン樹脂原料製造法を実施した。
英文要約Title:Development of Fundamental Technologies of thermochemical conversion prosesses for producing resins from biomass.(FY2010-FY2012) FY2011Annual Report
With focusing on the technology for converting materials from biomass to high-function compounds using only thermochemical conversion, this project aims at developing a process for producing compounds from inedible biomass and fundamental technology of thermochemical conversion required for developing such process. For this purpose, [1] fundamental technologies for thermochemical conversion from biomass to chemical compounds, [2] continuous process producing lignin solution from woody biomass and thermosetting lignin-derived resins by sub-critical water treatments and [3] processing technologies for producing acrylate monomer and polymer from lactic ester as cellulose derivative have been developed.
In the investigation on [1], we developed some new methods for production of valuable chemicals and resins. It was clarified that phenolic resin could be substituted with lignin resin and the total yield of organic acids was as large as 0.45 g/g-lignin by a proposed process consists of the extraction of lignin and hydrothermal depolymerization or oxidation. To develop high efficiency polymerization process, we have developed a flow microreactor that enables the anionic polymerization of such monomers at temperatures higher than -28 °C without decomposition of the reactive polymer ends. In addition we have proposed a method for estimating slug length in a flow gas-liquid slug flow microreactor.
In the investigation on [2], the yield of low molecular lignin of 300 °C and 9MPa was over 50% and accomplished the development goal of this fiscal year as results of batch experiments. By continuous experiments, it was clear that low molecular lignin was solved in subcritical water as against insoluble high molecular lignin. It means low molecular lignin can be separated from high molecular lignin by temperature control without solvent. By using subcritical water process (300°C/9MPa), the softening point of low molecular lignin was lowered to 90-107°C and meltability of lignin was highly improved. Paper-base lignin laminates and its melamine decorative sheets satisfied JIS K6912 (flexural strength≧98MPa) and JIS K6903 (weight increase in boiling water ≦17%) properties. These results proved possibility of lignin application to laminated materials.
In the investigation on [3], the vanadium oxychloride-catalysed oxidation of lactate ester to pyruvate ester has been studied in a 400-channel gas-liquid slug flow microreactor system. The purpose of this study was to investigate the productivity of the system, in order to estimate its scale-up potential. As a result of a series of bench-scale operations, the desired performance, 50% yield at 75°C, was attained at a flow of 28 L/h. The acid-catalysed acetylation of pyruvate ester to synthesis acetoxyacrylate ester has also been studied in a lab-scale microreactor. Thus continuous and stable production of acetoxyacrylate ester has been demonstrated with improved yield compared to the conventional batch reaction.
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