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    • 7. 发明公开
    • PROCÉDÉ DE PRODUCTION D'ÉTHANOL ET DE SOLVANTS À PARTIR DE BIOMASSE LIGNOCELLULOSIQUE AVEC RECYCLAGE D'UN VIN ÉTHYLIQUE ISSU DE LA FERMENTATION DES PENTOSES.
    • 生产乙醇的方法和溶剂从木质纤维素酒SPIRIT从五碳糖发酵RETURN
    • EP2697383A1
    • 2014-02-19
    • EP12714746.0
    • 2012-03-27
    • IFP Energies Nouvelles
    • ROPARS, MarcelAYMARD, CarolineDASTILLUNG, RéjaneMENIR, Sandra
    • C12P7/10C12P7/14
    • C12P7/14C12P7/10Y02E50/16
    • The present invention describes a method for producing alcohols and/or solvents from cellulosic or lignocellulosic biomass, including at least: a) a step of thermochemically pretreating a cellulosic or lignocellulosic substrate; b) optionally, a step of washing the pretreated substrate and adjusting the pH thereof; c) a step of enzymatically hydrolyzing the pretreated substrate; d) a step of ethylically fermenting the hexoses contained in the hydrolysate from step c) to obtain ethanol by means of a microorganism that ferments the hexoses, and obtaining a hexose-based ethylic wine; e) an extraction step; and f) a step of ethylically fermenting the pentoses contained in at least one of the streams obtained in one of the previous steps, by means of a microorganism that ferments the pentoses, and obtaining a pentose-based ethylic wine, wherein at least a portion of the pentose-based ethylic wine is recirculated upstream from at least one of the enzymatic hydrolysis and/or ethylic fermentation steps.
    • 本发明描述了一种用于生产由纤维素或木质纤维素生物质的醇和/或溶剂的,包括:用于热化学预处理纤维素或木质纤维素底物的步骤; 在用于洗涤预处理过的底物和调节pH的可选步骤; 用于预处理的基材的酶水解的步骤; 用于由己糖的发酵微生物和用于获得前己糖乙醇液包含在来自步骤(c)中获得的水解产物为乙醇的己糖的乙醇发酵的步骤; 在提取步骤; 为包含在从与戊糖发酵的微生物的步骤preceding-之一中获得的流中的至少一个和用于获得前戊乙醇液中的戊糖的乙醇发酵的步骤; 其中至少所述前戊乙醇液的一部分再循环的酶水解和/或乙醇发酵步骤中的至少一个的上游。