首页> 外国专利> IN SITU PRODUCTION OF FURFURAL IN A CONTROLLED AMOUNT IN AN ALCOHOL PRODUCTION UNIT FROM A LIGNOCELLULOSIC BIOMASS

IN SITU PRODUCTION OF FURFURAL IN A CONTROLLED AMOUNT IN AN ALCOHOL PRODUCTION UNIT FROM A LIGNOCELLULOSIC BIOMASS

机译:木质纤维素生物质酒精生产装置中可控制量的糠醛原位生产

摘要

The present invention describes a process for the production of alcohol, known as second generation production, from a lignocellulosic substrate, in which a controlled quantity of furfural is produced in situ and which comprises at least the following steps: a first step for alkaline chemical pre-treatment of the substrate; a step for adjusting the pH of the substrate; then a step for enzymatic hydrolysis of said pre-treated substrate; a step for alcoholic fermentation of the hydrolysate obtained with an alcohol-producing microorganism; a step for separation/purification; and a step for acid conversion of at least one liquid fraction into furfural, said liquid fraction being obtained during one of the preceding steps; a step for mixing said furfural obtained with the pre-treated substrate during the pH adjusting step.
机译:本发明描述了从木质纤维素底物生产醇的方法,称为第二代生产,其中原位生产受控量的糠醛,该方法至少包括以下步骤:碱性化学预处理的第一步-基材的处理;调节底物pH的步骤;然后是酶水解所述预处理底物的步骤;用产醇微生物获得的水解产物进行酒精发酵的步骤;分离/纯化步骤;将至少一种液体馏分酸转化为糠醛的步骤,所述液体馏分是在前述步骤之一中获得的;在pH调节步骤中将得到的糠醛与预处理的底物混合的步骤。

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