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PROCESS FOR PRETREATING A LIGNOCELLULOSIC MATERIAL WITH A VIEW TO PRODUCING BIOETHANOL, AND BIOETHANOL PRODUCTION PROCESS
PROCESS FOR PRETREATING A LIGNOCELLULOSIC MATERIAL WITH A VIEW TO PRODUCING BIOETHANOL, AND BIOETHANOL PRODUCTION PROCESS
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机译:为了生产生物乙醇和生物乙醇生产过程而预处理木质纤维素材料的方法
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摘要
A process for pretreating a lignocellulosic plant raw material in order to obtain a pretreated material that is capable of being hydrolyzed and fermented for the production of bioethanol, includes the following successive steps: (i) destructuring the lignocellulosic plant raw material by placing it in the presence of a mixture containing formic acid and water, at a reaction temperature between 95° C. and 110° C.; (ii) then, at atmospheric pressure and prior to any hydrolysis then fermentation action, separating: on the one hand, the solid phase, mainly composed of the cellulose, constituting a first co-substrate, capable of then being hydrolyzed and fermented for the production of bioethanol; and on the other hand, the liquid phase, containing, in particular in aqueous solution, the formic acid, the lignins, and the hemicelluloses, constituting a second co-substrate, capable of then being hydrolyzed and fermented for the production of bioethanol.
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