成果報告書詳細
管理番号20120000000144
タイトル*平成23年度中間年報 バイオマスエネルギー技術研究開発 戦略的次世代バイオマスエネルギー利用技術開発事業(次世代技術開発) セルロース含有バイオマスの革新的直接液化技術の開発
公開日2012/8/3
報告書年度2011 - 2011
委託先名日本大学理工学部 JFEテクノリサーチ株式会社
プロジェクト番号P10010
部署名新エネルギー部
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
木質系バイオマスはカーボンニュートラルでかつ再生可能なため、地球温暖化対策上、重要なエネルギー源として位置づけられているが、バイオマス社会の実現に向け、中長期的視野に立ってエネルギー転換効率のさらなる向上を目指した、バイオ燃料の普及を促進する波及効果の大きい次世代バイオ燃料製造技術の開発が必要である。 このような観点から、本事業では先に開発したバイオマス直接液化システムにおいて、燃料特性に優れた液化油の生産を目指すために、木質バイオマスとプラスチックの共液化技術を開発することとし、1)木質バイオマスと廃プラスチックの共液化機構の解明と検証、2)直接液化生成物の利用技術、3)バイオマス液化関連技術と液化生成物の用途に関する調査、4)直接液化プロセスの構築、経済性評価を行う。本開発目標を達成のため、日本大学理工学部とJFE テクノリサーチ株式会社が研究開発を分担し、開発を進めている。本技術開発では、直接液化機構検討、液化生成物利用検討および全体システム検討グループや研究推進委員会などの活動を通してプロジェクトの円滑な運営に努め、研究テーマ毎の研究成果の創出と総合化を図り、平成23 年度は以下に示す様な研究成果を上げることが出来た。
英文要約Title: Project to Develop Next-generation Technology for Strategic Utilization of Biomass Energy. Development of Innovative Conversion Technology of Cellulosic Biomass to Liquid Fuel (FY2011-FY2012) FY2011 Annual Report

In the present project, an innovative conversion technology of cellulosic biomass and waste plastics to liquid fuel at low pressure and low temperature has been developed. This project aims at the production of the liquefied fuel of substituting light by mixing cellulosic biomass and waste plastics in the present of solvent derived from the ligneous biomass in the plant. To achieve the project, liquefying plants of small and simple process would be installed in an area where wood biomass and plastics are discharged as building scrap or wastes. In this research, following results were obtained in 2011 by clarifying the direct co-liquefaction mechanism of cellulosic biomass and plastics, effective utilization of by-product, and a conceptual design of the direct liquefaction process. The co-liquefaction of cellulosic biomass (Japan cedar) and Polypropylene (PP) using wood tar or mineral oil as solvent at 400 °C was carried out. It was confirmed that the co-liquefaction of cellulosic biomass and PP gave the highest oil yield among the cases of cellulosic biomass or of PP, which was ascribed the acceleration of decomposition of PP by radicals derived from the decomposition of cellulosic biomass. The adaptability of the liquefied oil as an alternative fuel for diesel engines was clarified by the analysis of the liquefied oil prepared by the co-liquefaction of cellulosic biomass and PP or Polystyrene (PS) with 1.6 L autoclave at 400 °C for 90 min. . The three kinds of oil (fraction 190 to 290°C divided by fractional distillation) prepared by the co-liquefaction of PP, PP/PS, PS with cellulosic biomass were analyzed. The results showed that the liquefied oil prepared by the co-liquefaction with plastics had better properties for diesel engines than that with the liquefaction of cellulosic biomass. Co-liquefaction of cellulosic biomass and plastics was also conducted by a small extruder with two axes using wood tar as a solvent. It was found that the liquefied oil was obtained in the co-liquefaction with various plastics (PP, PS, Polyethylene terephthalate (PET)), and the acceleration of decomposition of plastics in the presence of cellulosic biomass. The yield of the liquefied oil was improved by increasing share and reverse screw elements of the extruder with two axes. No remarkable effect of particle size of cellulosic biomass on the liquefied oil yield was observed.
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