The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2016
Filed:
Apr. 04, 2012
Marcel Ropars, Palaiseau, FR;
Caroline Aymard, Lyons, FR;
Rejane Dastillung, Lyons, FR;
Remy Marchal, Chatou, FR;
Sandra Menir, Gonesse, FR;
Benjamin Clement, Saint Maur Des Fosses, FR;
Marcel Ropars, Palaiseau, FR;
Caroline Aymard, Lyons, FR;
Rejane Dastillung, Lyons, FR;
Remy Marchal, Chatou, FR;
Sandra Menir, Gonesse, FR;
Benjamin Clement, Saint Maur Des Fosses, FR;
IFP ENERGIES NOUVELLES, Rueil-Malmaison, FR;
Abstract
This invention describes a process for the production of second generation alcohols and/or solvents starting from cellulosic or lignocellulosic biomass wherein the lignocellulosic or cellulosic biomass undergoes a pretreatment before being converted into ethanol after an enzymatic hydrolysis and an ethylic fermentation, wherein glucidic polymers of the pretreated plant are hydrolyzed by cellulases; microorganisms that primarily use hexoses and preferably glucose and mannose are used for the ethylic fermentation; wines, with or without separation of materials in suspension are extracted by distillation; pentoses in the vinasses are fermented by a solventogenic microorganism into a butyl wine, and at least one portion of the butyl wine is recycled upstream from enzymatic hydrolysis.