HYDROTHERMAL-MECHANICAL CONVERSION OF LIGNOCELLULOSIC BIOMASS TO ETHANOL OR OTHER FERMENTATION PRODUCTS
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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A low-cost process is provided to render lignocellulosic biomass accessible to cellulase enzymes， to produce fermentable sugars. Some variations provide a process to produce ethanol from lignocellulosic biomass (such as sugarcane bagasse or corn stover)， comprising introducing a lignocellulosic biomass feedstock to a single-stage digestor; exposing the feedstock to a reaction solution comprising steam or liquid hot water within the digestor， to solubilize the hemicellulose in a liquid phase and to provide a cellulose-rich solid phase; refining the cellulose-rich solid phase， together with the liquid phase， in a mechanical refiner， thereby providing a mixture of refined cellulose-rich solids and the liquid phase; enzymatically hydrolyzing the mixture in a hydrolysis reactor with cellulase enzymes， to generate fermentable sugars; and fermenting the fermentable sugars to produce ethanol. Many alternative process configurations are described. The disclosed processes may be employed for other fermentation products.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
