Abstract
Recently, the biomass ethanol production using grain is done. On the other hand, the sudden rise of fodder and the fertilizer happens because grain was used for the bio-ethanol production, and the review of the raw material is being requested by the society. Then, it aimed at the bio-ethanol production that used unused woods such as the abolition woods and thinned woods in this study. We experimented on the method of the decomposition of wood that used solar energy and the photocatalyst without using a chemical oxidative decomposition of a past sulphuric acid method etc. As a result, the wood flour was decomposed to lignin and the holocellulose by the reaction of ultraviolet rays and the photocatalyst. In addition, sugar was obtained by the cellulose's that had been obtained here being similarly decomposed. However, the improvement of the treatment efficiency is future tasks in this method.
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