成果報告書詳細
管理番号20090000001087
タイトル*平成20年度中間年報 新エネルギー技術研究開発/バイオマスエネルギー等高効率転換技術開発(先導技術開発)/セルロース含有バイオマスの革新的燃料化技術の研究開発
公開日2009/12/21
報告書年度2008 - 2008
委託先名JFEテクノリサーチ株式会社 日本大学理工学部
プロジェクト番号P07015
部署名新エネルギー技術開発部 バイオマスグループ
和文要約以下本編抜粋:1. 研究開発の内容及び成果等 2005 年2 月に発効した京都議定書により、我が国は2008 年-2012 年の二酸化炭素等の温室効果ガス排出量を1990 年比で6%削減することが国際的な責務となっており、この目標を達成するため京都議定書目標達成計画が閣議決定された。このような中、バイオマス資源のエネルギー利用は、その積極的な導入促進が強く期待され、具体的には、2010 年の新エネルギー導入目標を原油換算1910 万klと定め、その目標を達成するためにさまざまな取り組みがなされている。本事業では、建築廃材や間伐材などの木質系バイオマスが排出される地域に小規模で簡便な液化装置を設置し、セルロース含有バイオマスと自製溶媒(木質バイオマス由来の液化油)を混合し、低圧、低温度の温和な反応条件で直接液化することにより高効率で軽-重油相当の石油代替液化燃料を製造する革新的な技術を開発する。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。
英文要約Development item "Development of Inovative Conversion Technology of Cellulosic Biomass to Liquid Fuel” In the present project, an innovative conversion technology of cellulosic biomass 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 and heavy oil by mixing cellulosic biomass and 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 is discharged as building scrap or wastes. In this research, following results were obtained in 2008 by clarifying the direct liquefaction mechanism of cellulosic biomass, effective utilization of by-product, and a conceptual design of the direct liquefaction process. The low pressure liquefaction using a polar organic-compound as the model of the circulating solvent at 250-300 °C in a short time was carried out. It was confirmed that the liquefaction oil, such as the furan type compounds derived from cellulose and phenol type compounds derived from lignin, was produced voluminously when the polar compound was used as the circulating solvent. Consequently, it was assumed that the polar compound derived from lignin was appropriate for the circulating solvent and the furan type compounds were suitable for the alternative fuel of diesel oil. The adaptability of the biomass liquefaction oil as an alternative fuel for diesel engines was clarified by diesel engine performance tests. The liquefaction oil was divided into three fractions: 200 to 250°C, 250 to 300 °C and 300 °C or more by fractional distillation. Three fractions were mix with FMAE (Coconuts oil Methyl Ester) or diesel fuel. The liquefaction oil is hardly mixed with diesel fuel, however liquefaction oil fractions 200 to 250°C and 250 to 300 °C can be applied for the diesel engine with mixing ratio up to 20 % and 10 %, respectively. Any fractions of liquefaction oil can be completely mixed with FAME in any mixing ratios. For all liquefaction oil fractions, the engine can be stably run without any mischievous influence with mixing ratio up to 15 % . Cellulosic biomass (Japan cedar) liquefaction experiments were conducted by a small extruder with two axes using a polar organic-compound as the model of the circulating solvent. The yield of the liquefaction oil was improved by increasing share and reverse screw elements of the extruder with two axes. The heavy liquefaction oil was clarified to be able to use as a solvent for liquefaction from the result of the liquefaction experiment using the different boiling point solvent. The entire system configuration of the actual direct liquefaction plant has been designed based on the results of the liquefaction experiment using the extruder.
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