エタノール生産のための木質セルロース前処理技術の開発 (第1報)

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タイトル別名
  • Preprocessing Technology for Ethanol Production from Wood-Cellulosic Materials (Part 1)-Development of Flail-Knife Fine-Crusher for Chopped Wood Materials-
  • Preprocessing Technology for Ethanol Production from Wood-Cellulosic Materials(Part 1)Development of Flail-Knife Fine-Crusher for Chopped Wood Materials〔含 コメント〕
  • Preprocessing Technology for Ethanol Production from Wood Cellulosic Materials Part 1 Development of Flail Knife Fine Crusher for Chopped Wood Materials ガン コメント
  • Development of Flail-Knife Fine-Crusher for Chopped Wood Materials

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A transportable fine-crusher for crushing chopped wood was developed and tested, with the view of subjecting the processed material (finely crushed material) to subcritical water treatment before ethanol production. The fine-crusher consists of a flail-knife rotor and a rotary sieve of circular or elliptical pores, both rotating on a common shaft. The experimental parameters were the pore size of the sieve, the speeds of the rotor and sieve and the feeding rate and moisture content of the material. The specific energy requirement of the rotor and the indices of the shape of the crushed material (fractal dimension and weighted average diameter) were measured. The pore size of the rotary sieve and the moisture content of the material were identified as significant parameters. The fractal dimension correlated negatively with the weighted average diameter of the crushed material and can be used as a practical indicator. The optimum driving conditions within the range set for the experiment to produce the finest material at the lowest possible energy requirement for both types of sieves were 1750rpm for the rotor speed, -30rpm for the sieve speed, 1.5mm for the pore size of the sieve, 10gs-1 for the feeding rate of material, and 15.5% d.b. for the moisture content of the material.

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