| 초록 |
Organosolv pretreatment has some advantages as follows. Organic solvents are always easy to recover by distillation and recycled for pretreatment. The chemical recovery in organosolv pulping processes can isolate lignin as a solid material and carbohydrates as syrup. For economic reasons, the use of low-molecular-weight alcohols such as ethanol and methanol has been favored. Among them, ethanol is suitable as solvent. Pretreatment with milling does not involve high temperatures or pressures, making it more user friendly than many other pretreatment processes. Milling is used to reduce the crystallinity of cellulose. For increasing the effect of pretreatment, physical and chemical pretreatment were combined. |
