O-10　プロセスシミュレーションによる廃棄物バイオマスからのソホロリピッド製造プロセスの評価

佐賀市のケーススタディ

抄録

For the efficient utilization of waste biomass in Saga city, the economic and environmental impact of the process for producing sohorolipids (SLs) were quantitavively evaluated. The SLs yield and input energy were calculated to estimate the production cost and CO₂ emission for plant operation through process simulation. The process consisted of three unit operation including enzymatic hydrolysis, fed-batch fermentation that required additional carbon sources, and purification. Waste biomass such as household food waste and business food waste were selected as feedstock, and the capaicty of the process was approximately 20 t-carbohydrates/d. Process simulation indicated that the SLs was obtained at 52.3t/d. The production cost was ¥1107/kg-SLs and the CO₂ emission was 10,475t/y.