成果報告書詳細
管理番号20130000000868
タイトル*平成24年度中間年報 国際エネルギー消費効率化等技術普及協力事業 製糖工場におけるモラセスエタノール製造技術実証事業(インドネシア)
公開日2014/5/9
報告書年度2012 - 2012
委託先名サッポロエンジニアリング株式会社 月島機械株式会社
プロジェクト番号P93050
部署名新エネルギー部
和文要約
英文要約Title: Model Project for Ethanol Production from Molasses in a Sugar Factory (FY2010-FY2013) FY2012 Annual Report 

In this model project, bioethanol will be produced from molasses generated in the sugar production process. The project will add value to sugar cane as a renewable energy resource, and simultaneously improve the profitability of the sugar factory. The ethanol from molasses production process involves a technique developed in Japan called repeated batch fermentation method with agglomerated yeast. The employed yeast has the characteristic of being agglomerated and settles after the fermentation period. It can be utilized repeatedly through several fermentation batches. The fermentation process is as follows. The molasses and agglomerated yeast are fed into the fermentation column; fermentation is carried out for 48 hours. During the fermentation period, the yeast gradually settles to the bottom of the column, and finally the broth (the fermented liquid) is separated from the agglomerated yeast in the column. After the broth is discharged to the evaporation unit, a fresh batch of molasses is again fed into the column as the feedstock for the next batch. The agglomerated yeast stays in the column after the broth has been separated. This agglomerated yeast can be utilized for up to ten batches. After ten batches have been completed, the yeast/mud sludge is discharged into a separator unit. The ethanol recovered in the unit is returned to the evaporation process, and the dewatered sludge is discharged and utilized as fertilizer, animal feed, etc. The ethanol plant will be constructed at Gempolkrep factory of PTPN X, Japan and Indonesia will cooperate carrying out this model project such as demonstration operation. This model project from FY2010 to FY2013 has these works as follows; 1.Site Survey/Concluding the Implementation Document, 2.Design work, 3.Equipment Fabrication/Transportation, 4.Supervising for Installation/Operation, 5.Demonstration operation, 6.Dissemination. In FY2012, we carried out these works from 3 to 4.3.Equipment Fabrication/Transportation; For Japan scope equipment, we finished the knockdown type fabrication of fermentation tanks and storage tanks. As a result, both fabrication and transportation work which have performed from FY 2011 were completed. 4.Supervising for Installation/Operation; For the installation of Japan scope equipment, we dispatched Japanese installation supervisors. Also we prepared operation manuals. After the mechanical completion in the end of May in 2013, we planned to dispatch Japanese supervisors for operation.
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