发明名称 |
METHOD FOR PRODUCING ETHANOL AND SOLVENTS FROM LIGNOCELLULOSIC BIOMASS INCLUDING THE RECIRCULATION OF AN ETHYLIC WINE MADE FROM PENTOSE FERMENTATION |
摘要 |
The present invention describes a process for production of alcohols and/or solvents from a cellulosic or lignocellulosic biomass, comprising: a step for thermochemical pre-treatment of a cellulosic or lignocellulosic substrate; an optional step for washing the pre-treated substrate and adjusting the pH; a step for enzymatic hydrolysis of the pre-treated substrate; a step for ethanolic fermentation of the hexoses contained in the hydrolysate obtained from step (c) into ethanol by a hexose-fermenting microorganism and for obtaining an ex-hexose ethanolic liquor; an extraction step; a step for ethanolic fermentation of the pentoses contained in at least one of the streams obtained from one of the preceding steps with a pentose-fermenting microorganism and for obtaining an ex-pentose ethanolic liquor; in which at least a portion of the ex-pentose ethanolic liquor is recycled upstream of at least one of the enzymatic hydrolysis and/or ethanolic fermentation steps. |
申请公布号 |
EP2697383(A1) |
申请公布日期 |
2014.02.19 |
申请号 |
EP20120714746 |
申请日期 |
2012.03.27 |
申请人 |
IFP ENERGIES NOUVELLES |
发明人 |
ROPARS, MARCEL;AYMARD, CAROLINE;DASTILLUNG, REJANE;MENIR, SANDRA |
分类号 |
C12P7/10;C12P7/14 |
主分类号 |
C12P7/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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