成果報告書詳細
管理番号20140000000131
タイトル*平成25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2014/5/2
報告書年度2013 - 2013
委託先名JFEテクノリサーチ株式会社 日本大学理工学部理工学研究所
プロジェクト番号P10010
部署名新エネルギー部
和文要約
英文要約Development item
"Development of Innovative Conversion Technology of Cellulosic Biomass to Liquid Fuel”

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 2013 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 examinations of a cedar of wood biomass and various plastics (polyethylene, polypropylene and polystyrene) with the mineral oil as a solvent were carried out using the small size autoclave. As a result, under the reaction conditions of 400℃ and 60 minutes, it became clear that the liquefied oil were obtained with a high yield in all cases using polyethylene, polypropylene and polystyrene. Co-liquefaction of wood and polyethylene which is thermally stable gave higher yield of liquefied oil than the liquefaction of polyethylene. The dependence of liquefaction temperature on the yield of liquefied oil was studied, and it was cleared that liquefaction at around 400℃ was the most suitable for the production of liquefied oil.
The adaptability of the liquefied oil as an alternative fuel for diesel engines were clarified by two types of the engine test (i.e., diesel generator and diesel engines with common rail system) of the liquefied oil prepared by the co-liquefaction of cellulosic biomass (Japan cedar) and polypropylene in mineral oil with 1.6L autoclave at 400°C for 90 min. . The results showed that the diesel engine performance tests of the diesel oil containing 5% of the oil showed the same results ( fuel consumption rate, concentrations of NOx, CO, soot in the exhaust gas.,etc.,) with diesel oil.
Co-liquefaction of cellulosic biomass and plastics was also conducted by a large scale twin screw extruder (10 kg/h) at 400°C using mineral oil as a solvent. It was found that the stable operation during 6 hours was achieved with a high liquefied oil yield. Moreover, the collection of liquefied oil from the vent of small type extruder was also tried under reduced pressure (-10-20mmAq) , and liquefied oil was collected with 43% yield. Based on the results obtained, the energy recovery ratio of biomass calculated from the data obtained in the test was estimated to be 0.75.
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