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成果報告書詳細
管理番号20170000000159
タイトル*平成28年度中間年報 セルロース系エタノール生産システム総合開発実証事業 最適組合せの検討及び事業性評価 パルプを用いた水蒸気爆砕法によるバイオエタノール生産に関する技術開発及び事業性評価
公開日2017/4/27
報告書年度2016 - 2016
委託先名株式会社Biomaterial in Tokyo コスモ石油株式会社 三友プラントサービス株式会社
プロジェクト番号P14025
部署名新エネルギー部
和文要約
英文要約Title: Developing and Evaluating the Use of Steam Explosion on Pulp for Bioethanol Production
Entrustment
Biomaterial in Tokyo Co., LtD.
Cosmo Oil Co., Ltd.
Sanyu Plant Service Co., Ltd

The following items have been conducted in preparation for operating the pilot plant to demonstrate the production process:
- assessed reaction conditions (ie: temperature, retention time, etc.) for steam explosion of each feedstock biomass, including waste pulp.
- examined the relationship between substrate concentration and enzyme loading, and evaluated the economically and environmentally optimal conditions for enzyme saccharification.
- confirmed the effectiveness of antibiotic use for preventing contamination during enzyme saccharification and conducted enzymatic saccharification using proprietary enzyme cocktail on a 1 m3 scale.
- analyzed the composition of each feedstock to identify enzyme components deficient in the proprietary cocktail, and modified S. pombe to produce these components through heterologous expression.
- scaled up the fermentation process using non-GMO C5 assimilating yeast (C. intermedia) to a 30 L scale. The effectiveness of GMO C5 assimilating yeast (S. cerevisiae) was also evaluated and tested on a 1 m3 scale under cost efficient conditions.
Based on these results, a bioethanol production process was constructed, and the material/energy balance and the environmental and economical feasibility was assessed to determine the best conditions for demonstrating the process at the pilot plant.
The pilot plant began operation during the fourth quarter of the 2016 fiscal year.
The effect of treating feedstock simulating waste pulp by continuous steam explosion at pre-determined temperature and retention time was confirmed.
The materials handling with equipment necessary for the production process was also confirmed using feedstock treated by steam explosion.
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