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Biomass Ethanol Production Process

This ethanol production technology employs a process using cellulose biomass as a feedstock. Sugarcane bagasse and other biomass is pre-treated with steam or diluted sulfuric acid. Then, through a highly efficient hydrolysis reaction using enzymes, the feedstock is broken down into simple sugars such as glucose and xylose. These sugars are then fermented to produce ethanol.

Biomass Ethanol Production Process


  • ・Biomass feedstock is used, such as cellulose-containing waste wood and agricultural wastes.
  • ・Careful tweaks to the reaction converting the cellulose into simple sugars allow for a reduction in the amount of enzyme needed, thus lowering costs.
  • ・Waste liquids and insoluble materials such as lignin are converted to methane via fermentation. The methane generated is then used for power generation, contributing to the energy efficiency of the process.


  • ・Feedstock
  • - Cellulosic biomass (bagasse, waste wood, waste paper, etc.)
  • - Cellulose-containing industrial wastes (coffee/tea waste, palm oil waste, etc. discharged from food plants).
  • ・End Product (Bio-ethanol)
  • - Product ethanol is used as a gasoline blending material or as industrial alcohol.
  • -The sugars produced through this process can be used not only for ethanol production, but also for production of chemicals, as well.

Development status

Development of high-efficiency conversion technology is being sponsored by NEDO, and technology using reactor vessels of 20m3 in volume will be undergoing test operations. Currently, we are investigating viable project for commercial use of this technology for both domestic and overseas clients.

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