Ifp Energies Nouvelles

Stichting Wageningen Research

Nicolas Lopes Ferreira

Frederic Feugnet

Slavik Kasztelan

Marcel Ropars

Ana Maria Lopez Contreras

Vincent Coupard

Caroline Aymard

Remy Marchal

Eszter Toth

Antoine Margeot

Frederic Monot

Jean-Christophe Gabelle

Helena Gonzalez Penas

Dominique Casanave

François Wasels

Laetitia Rudant

Gwladys Chartier

Florent Collas

Angelique Bisson

Belinda Perez Bibbins

Hadrien-Felix Mate De Gerando

Helene Velly

Ana Lopez Contreras

The present invention concerns a genetic tool comprising at least two distinct nucleic acids optimized to facilitate the transformation and modification by homologous recombination of a bacterium of the genus, typically a solventogenic bacterium.

Optimized genetic tool for modifyingbacteria

The present invention relates to a genetic tool comprising at least two different nucleic acids allowing the transformation, by homologous recombination, of a bacterium of the genus, typically of a solventogenic bacterium.

Genetic tool for the transformation ofbacteria

The present invention relates to a process for cleaning a solid support of a fermentation reactor for the production of alcohols by fermentation using a sugary fluid, the solid support comprising a polyurethane foam inoculated with a biomass produced by a solvent-producing strain belonging to the genus, the process comprising placing the solid support in contact with a fluid originating from the fermentation must enriched in alcohol and/or acetone and/or an aqueous solution at basic pH.

Method for cleaning a solid support of a fermentation reactor comprising a contaminated polyurethane foam

A process is described for producing a BTX cut from biomass comprising at least one step of catalytic pyrolysis of said biomass in a fluidized-bed reactor in which a stream comprising at least one oxygenated compound selected from alcohols having 2 to 12 carbon atoms, alcohol acids having 2 to 12 carbon atoms, diols having 2 to 12 carbon atoms, carboxylic acids having 2 to 12 carbon atoms, ethers having 2 to 12 carbon atoms, aldehydes having 2 to 12 carbon atoms, esters having 2 to 12 carbon atoms and glycerol, alone or mixed, is fed into the catalytic pyrolysis reactor.

Process for producing BTX by catalytic pyrolysis from biomass with injection of oxygenated compounds

A process for producing BTX and alcohols from biomass, comprising at least a) catalytic pyrolysis of said biomass in a fluidized-bed reactor producing a gaseous pyrolysis effluent; b) separation of said gaseous pyrolysis effluent into at least one BTX fraction and a gaseous effluent comprising at least carbon monoxide and carbon dioxide, c) recycling at least part of said gaseous effluent comprising at least carbon monoxide and carbon dioxide into the reactor of said step a), d) purging said gaseous effluent recycled according to step c) to produce a purge effluent, e) sending at least part of said purge effluent from step d) into a fermentation step producing a liquid fermentation stream comprising at least one stream comprising at least one oxygenated compound chosen from alcohols, diols, acid alcohols, carboxylic acids, aldehydes, ketones and esters, alone or as a mixture.

Process for producing BTX by catalytic pyrolysis from biomass without recycling oxygenated compounds

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 genusand 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.

IBE fermentation method

A process is described for producing BTX and alcohols from biomass, by a) catalytic pyrolysis of the biomass in a fluidized-bed reactor producing a gaseous pyrolysis effluent; b) separation of said gaseous pyrolysis effluent into at least one BTX fraction and a gaseous effluent containing at least carbon monoxide and carbon dioxide, c) sending all of the gaseous effluent from separation b) into fermentation producing a liquid fermentation stream containing at least one stream containing at least one oxygenated compound chosen from alcohols, diols, acid alcohols, carboxylic acids, aldehydes, ketones and esters, d) separating the fermentation stream obtained on conclusion of c) into at least the stream containing at least one oxygenated compound, an aqueous fraction, and an unreacted gaseous effluent, e) recycling at least part of unreacted gaseous effluent into the catalytic pyrolysis a).

Process for producing BTX and alcohols by catalytic pyrolysis of biomass and fermentation of the gaseous pyrolysis effluent

The present invention relates to mutant bacteria of the genus, CNCM I-4985, CNCM I-4986, CNCM I-4987 and CNCM I-4988, deposited at the Institut Pasteur (CNCM, 25 rue du Docteur Roux, F-75724 PARIS Cedex 15, France) on 27 May 2015, and CNCM I-5027, CNCM I-5028 and CNCM I-5029 deposited at the Institut Pasteur (CNCM, 25 rue du Docteur Roux, F-75724 PARIS Cedex 15, France) on 26 Nov. 2015, which are useful in the fermentation of sugars for the production of isopropanol and butanol.

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The present invention relates to a method of producing sweet juice from lignocellulosic substrate, wherein enzymatic hydrolysis is carried out by performing cellulase supplementation with supported &#x3b2;-glucosidases used in a reactor separate from the lignocellulose enzymatic hydrolysis reactor.

Method for producing sweet juice from lignocellulosic biomass with improved enzyme recycle

The present invention describes the use of a genetically improvedstrain allowing to limit microbiological contaminations during an industrial process. The genetic strain improvement allows the latter to overexpress an extracellular protein having known antimicrobial properties and compatible with the secretory system of strains of fungi such as. This modified strain can be used to produce the cellulolytic and/or hemicellulolytic enzymes used in a method of producing ethanol from cellulosic or lignocellulosic materials referred to as 'second generation' materials.

Growing community of inventors

Croisilles, France

Nicolas Lopes Ferreira