2-19 環状炭酸を含む多価アルコール混合物を用いた廃棄竹材の熱液化と生成物の有用性評価

抄録

In this study, waste bamboo materials from abandoned bamboo groves were used as an alternative to plastics for the preparation of biomass-based products. Waste bamboo materials was thermally liquefied in a polyhydric alcohol mixture (10-30%) containing a sulfuric acid catalyst and cyclic carbonic acid. Optimization of conditions during thermal liquefaction, such as solvent composition, acid catalyst addition rate, and reaction time was investigated. The chemical structure, molecular weight distribution, and hydroxyl value of the liquefied product obtained were analyzed. It has showed that a liquefaction rate of 80% in 60 minutes was achieved with a reduced sulfuric acid catalyst ratio in 2% in a solvent with 20% ethylene carbonate. Therefore, it is possible to reduce the environmental impact of the preparation of resins and other products from liquefied biomass products.