公开(公告)号：US10597683B2

公开(公告)日：2020-03-24

申请号：US15323666

申请日：2015-06-29

Applicant: IFP Energies nouvelles

Inventor： Nicolas Lopes Ferreira ,  Caroline Aymard ,  Remy Marchal ,  Frederic Monot

IPC: C12P7/16 ,  C10L1/02 ,  C12P7/04 ,  C12P7/06 ,  C12P7/08 ,  C12P7/10 ,  C12P7/14

Abstract: The present invention concerns a process for the production of an aqueous mixture comprising isopropanol, n-butanol and ethanol, comprising a step in which an aqueous solution containing C5 and/or C6 sugars and acetate is fermented under strict anaerobic conditions in the presence of a fermenting microorganism of the genus Clostridium and in which said aqueous solution has an acetate concentration in the range 0.5 to 10 g/L and a ratio by weight of (acetate)/(sum of C5 and/or C6 sugars) in the range 0.005 to 0.35 g/g.

公开(公告)号：US09605282B2

公开(公告)日：2017-03-28

申请号：US14772911

申请日：2014-02-06

Applicant: IFP ENERGIES NOUVELLES

Inventor： Caroline Aymard ,  Pierre-Antoine Bouillon ,  Stephanie Fleurier ,  Sylvain Louret ,  Larissa Perotta ,  Eszter Toth

IPC: C12P7/14 ,  C12P7/10

CPC classification number: C12P7/14 ,  C12P7/10 ,  C12P2201/00 ,  C12P2203/00 ,  Y02E50/16

Abstract: The process for the production of alcohol and/or solvent from a biomass feedstock comprises the stages for pretreatment (P) of the biomass feedstock, for enzymatic hydrolysis (H1 and HF), and for fermenting the hydrolyzate (HF). To prevent solids from being sent and to facilitate operating the section for purifying the fermentation products, at least a portion of the solid material in the fermentation wine is extracted (Ex1) to obtain a stream of solid residue (11) comprising lignin and a fermentation wine (12) that is low in solid material. Then, the stream of solid residue is washed (L) with a liquid stream to recover a liquid stream that is enriched with fermentation products (16). The liquid stream that is enriched with fermentation products (16) is recycled in the enzymatic hydrolysis stage (H1) to recover any fermentation product and to increase the overall yield of the process.

公开(公告)号：US20150031092A1

公开(公告)日：2015-01-29

申请号：US14372617

申请日：2012-12-11

Applicant: IFP ENERGIES NOUVELLES

Inventor： Christophe Vallee ,  Didier Bernard ,  Caroline Aymard ,  Helene Olivier-Bourbigou

IPC: C12P19/14 ,  C12P19/02

CPC classification number: C12P19/14 ,  C07D307/50 ,  C12P7/10 ,  C12P19/02 ,  C12P2201/00 ,  C13K1/02 ,  D21C1/04 ,  D21C3/04 ,  D21C3/18 ,  D21C3/20 ,  D21C5/005 ,  Y02E50/16 ,  Y02E50/343

Abstract: A method for pretreating lignocellulosic biomass by: a) acid hydrolysis with an acid solution resulting in a liquid fraction and a solid fraction, b) separating the solid fraction and the liquid fraction, c) drying the solid fraction, d) firing the dried solid fraction in a medium comprising at least one hydrated inorganic salt to obtain a solid fraction and a liquid fraction, e) separating the solid fraction and the liquid fraction obtained in d), f) optionally, treating said solid fraction obtained in e), g) enzymatic hydrolysis of said solid fraction obtained in e) and/or f), and wherein at least a portion of the liquid fraction obtained in b) is used to grow microorganisms which produce the enzymes necessary for the enzymatic hydrolysis of g).

Abstract translation: 一种用于通过以下方法预处理木质纤维素生物质的方法：a）用酸溶液进行酸水解，得到液体馏分和固体馏分，b）分离固体馏分和液体馏分，c）干燥固体馏分，d） 在包含至少一种水合无机盐的介质中获得固体馏分和液体馏分的馏分，e）分离d）中得到的固体馏分和液体馏分，f）任选地，将e）中得到的固体馏分，g ）e）和/或f）中获得的所述固体级分的酶水解，并且其中使用b）中获得的至少一部分液体馏分生长产生酶水解g）所必需的酶的微生物。