Patents by Inventor Romain Rousset
Romain Rousset has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240026388Abstract: The subject of the invention is a process for treating lignocellulosic biomass comprising the following steps: a) conditioning the lignocellulosic biomass, b) washing said particles, c) separating the aqueous solution from the washed biomass particles, d) impregnating said lignocellulosic substrate with an acid liquor, e) carrying out a solid/liquid separation of the impregnated lignocellulosic substrate, f) pretreating said substrate from step e) by cooking, g) carrying out an enzymatic hydrolysis of the pretreated lignocellulosic substrate, h) carrying out a fermentation of the hydrolyzate from step g), and introducing the used aqueous washing solution into a step of said biomass treatment process which is after the pretreatment step f), and/or into an enzyme production step and/or into a step of producing/propagating the microorganisms necessary for steps g) or h).Type: ApplicationFiled: January 20, 2020Publication date: January 25, 2024Applicants: INSTITUT NATIONAL DE RECHERCHE POUR L'AGRICULTURE L'ALIMENTATION ET L'ENVIRONNEMENT, IFP Energies NouvellesInventors: Caroline AYMARD, Severine LOUESDON-JEUNET, Romain ROUSSET, Damien HUDEBINE
-
Patent number: 11299758Abstract: The invention relates to a process for treating lignocellulosic biomass by means of an acidic liquor in order to produce “second-generation” (2G) sugary liquors. These sugary liquors may be used to produce other products via a biochemical pathway (e.g. alcohols such as ethanol, butanol or other molecules, for example solvents such as acetone, etc.). This process comprises analysis of the liquid streams withdrawn during the process and adjustment of the composition of the impregnation liquor so as to keep the acidic power of said streams constant.Type: GrantFiled: December 4, 2018Date of Patent: April 12, 2022Assignees: IFP Energies nouvelles, AGRO INDUSTRIES RECHERCHE ET DEVELOPPEMENT, INSTITUTE NATIONAL DE RECHERCHE POUR L'AGRICULTURE L'ALIMENTATION ET L'ENVIRONNEMENTInventors: Caroline Aymard, Pierre-Antoine Bouillon, Romain Rousset, Olivier Carnnot
-
Patent number: 11274122Abstract: The invention relates to a method for separating, from a culture medium, an enzymatic cocktail and the fungus Trichoderma Reesei, the culture medium resulting from enzyme production by the fungus, method in which: said culture medium is subjected, in a period of no longer than 30 h from the halting of production, to a separation on a filter press lined with a fabric having a porosity of 3-20 ?m, so as to obtain a filtrate having a corrected optical density OD at 600 nm of less than 2.5; and the liquid phase obtained is subjected to tangenital micro-filtration on a ceramic membrane having a cut-off limit of 0.5 to 1.4 ?m, so that the corrected OD at 600 nm does not exceed 0.1.Type: GrantFiled: July 11, 2017Date of Patent: March 15, 2022Assignees: IFP Energies Nouvelles, Institut National De La Recherche AgronomiqueInventors: Mohamed Fadhel Ben Chaabane, Romain Rousset
-
Patent number: 11236403Abstract: The invention concerns a continuous method for treating a lignocellulosic biomass before enzymatic hydrolysis, said method comprising a transfer of crushed then pressed biomass to a step of impregnation by an acid liquor, the impregnated biomass dripping over the area containing the impregnation liquor, then the resulting wet biomass is pressed and sent to a steam explosion step. The impregnation liquor is prepared in a dedicated area from the used liquor from the dripping operation and/or that from the pressing operation, prior to the explosion step. The invention also concerns the facility for implementing the method.Type: GrantFiled: July 11, 2017Date of Patent: February 1, 2022Assignees: INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, IFP Energies nouvelles, AGRO INDUSTRIES RECHERCHE ET DEVELOPPEMENTInventors: Damien Hudebine, Romain Rousset, Olivier Carnnot
-
Publication number: 20210087590Abstract: The invention relates to a process for treating lignocellulosic biomass by means of an acidic liquor in order to produce “second-generation” (2G) sugary liquors. These sugary liquors may be used to produce other products via a biochemical pathway (e.g. alcohols such as ethanol, butanol or other molecules, for example solvents such as acetone, etc.). This process comprises analysis of the liquid streams withdrawn during the process and adjustment of the composition of the impregnation liquor so as to keep the acidic power of said streams constant.Type: ApplicationFiled: December 4, 2018Publication date: March 25, 2021Applicants: IFP Energies nouvelles, AGRO INDUSTRIES RECHERCHE ET DEVELOPPEMENT, INSTITUTE NATIONAL DE RECHERCHE POUR L'AGRICULTURE L'ALIMENTATION ET L'ENVIRONNEMENTInventors: Caroline AYMARD, Pierre-Antoine BOUILLON, Romain ROUSSET, Olivier CARNNOT
-
Patent number: 10865426Abstract: The present invention relates to a sequentially fed process for enzymatic hydrolysis in which, under agitation, a pre-treated lignocellulosic substrate is brought into contact with water and with enzymes in a reactor, said process being characterised in that the sequential addition to the reactor of the pre-treated lignocellulosic substrate is carried out increasingly spread out over time, in order to obtain a predetermined final content of dry matter.Type: GrantFiled: September 27, 2018Date of Patent: December 15, 2020Assignee: IFP Energies NouvellesInventors: Federico Battista, Romain Rousset, Melanie Gomez Almendros
-
Publication number: 20200031864Abstract: The invention relates to a method for separating, from a culture medium, an enzymatic cocktail and the fungus Trichoderma reesei, the culture medium resulting from enzyme production by the fungus, method in which: said culture medium is subjected, in a period of no longer than 30 h from the halting of production, to a separation on a filter press lined with a fabric having a porosity of 3-20 ?m, so as to obtain a filtrate having a corrected optical density OD at 600 nm of less than 2.5; and the liquid phase obtained is subjected to tangenital micro-filtration on a ceramic membrane having a cut-off limit of 0.5 to 1.4 ?m, so that the corrected OD at 600 nm does not exceed 0.1.Type: ApplicationFiled: July 11, 2017Publication date: January 30, 2020Applicants: IFP Energies Nouvelles, Institut National De La Recherche AgronomiqueInventors: Mohamed Fadhel BEN CHAABANE, Romain ROUSSET
-
Publication number: 20200002482Abstract: The invention relates to a process for treating a lignocellulosic biomass, with: a. Pretreatment of the biomass via at least one cooking or steam explosion operation, so as to obtain a pretreated substrate, b. Liquid/solid separation on at least a portion of the pretreated substrate, comprising two successive substeps: an upstream substep b1 of contacting the solid/liquid mixture performed with a continuous mixer (M) using a mixing fluid, a downstream sub-step b2 of extraction/washing performed with a continuous filter, using a washing fluid, to obtain a solid phase enriched in solid and a plurality of liquid phases enriched in liquid, with at least partial recycling of a liquid phase extracted from the filter at the inlet of the mixer as a mixing fluid.Type: ApplicationFiled: June 25, 2019Publication date: January 2, 2020Applicants: Institut National De La Recherche Agronomique, IFP Energies Nouvelles, Agro Industries Recherche Et DeveloppementInventors: Caroline AYMARD, Romain ROUSSET, Larissa PEROTTA, Emilia KNOSPE
-
Publication number: 20190241984Abstract: The invention concerns a continuous method for treating a lignocellulosic biomass before enzymatic hydrolysis, said method comprising a transfer of crushed then pressed biomass to a step of impregnation by an acid liquor, the impregnated biomass dripping over the area containing the impregnation liquor, then the resulting wet biomass is pressed and sent to a steam explosion step. The impregnation liquor is prepared in a dedicated area from the used liquor from the dripping operation and/or that from the pressing operation, prior to the explosion step. The invention also concerns the facility for implementing the method.Type: ApplicationFiled: July 11, 2017Publication date: August 8, 2019Applicants: INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, IFP Energies nouvelles, AGRO INDUSTRIES RECHERCHE ET DEVELOPPEMENTInventors: Damien HUDEBINE, Romain ROUSSET, Olivier CARNNOT
-
Publication number: 20190093133Abstract: The present invention relates to a sequentially fed process for enzymatic hydrolysis in which, under agitation, a pre-treated lignocellulosic substrate is brought into contact with water and with enzymes in a reactor, said process being characterised in that the sequential addition to the reactor of the pre-treated lignocellulosic substrate is carried out increasingly spread out over time, in order to obtain a predetermined final content of dry matter.Type: ApplicationFiled: September 27, 2018Publication date: March 28, 2019Applicant: IFP Energies NouvellesInventors: Federico BATTISTA, Romain ROUSSET, Melanie GOMEZ ALMENDROS
-
Patent number: 9593355Abstract: The present invention concerns a production of liquefied lignocellulosic substrate by enzymatic reaction. 10% to 40% by weight dry matter of pre-treated lignocellulosic substrate is contacted, with water and enzymes at 0.1 to 60 mg of enzymes per gram of cellulose for a period of 1 to 24 hours. Over time, at least the value of one of the rheological characteristics of the reaction medium is measured. If a reduction of the value is detected over time, the following step a) is carried out: a) the feeding flow rate of pre-treated lignocellulosic substrate is increased, with or without modification of the flow rate of enzymes and/or water; If an increase of the value is detected over time, a step b) is carried out: b) the feeding flow rate of water and/or enzymes is increased, with or without modification of the flow rate of pre-treated lignocellulosic substrate.Type: GrantFiled: November 29, 2012Date of Patent: March 14, 2017Assignee: IFP ENERGIES NOUVELLESInventors: Sylvain Louret, Romain Rousset
-
Publication number: 20140377812Abstract: The present invention concerns a production of liquefied lignocellulosic substrate by enzymatic reaction. 10% to 40% by weight dry matter of pre-treated lignocellulosic substrate is contacted, with water and enzymes at 0.1 to 60 mg of enzymes per gram of cellulose for a period of 1 to 24 hours. Over time, at least the value of one of the rheological characteristics of the reaction medium is measured. If a reduction of the value is detected over time, the following step a) is carried out: a) the feeding flow rate of pre-treated lignocellulosic substrate is increased, with or without modification of the flow rate of enzymes and/or water; If an increase of the value is detected over time, a step b) is carried out: b) the feeding flow rate of water and/or enzymes is increased, with or without modification of the flow rate of pre-treated lignocellulosic substrate.Type: ApplicationFiled: November 29, 2012Publication date: December 25, 2014Applicant: IFP ENERGIES NOUVELLESInventors: Sylvain Louret, Romain Rousset
-
Patent number: 8519171Abstract: The present invention describes a method of producing fatty acid alkyl esters and glycerin implementing, in a reaction section, a set of transesterification reactions between a vegetable or animal oil and an aliphatic monoalcohol, and using a heterogeneous solid catalyst, comprising: a) a glycerin phase introduction stage, b) an excess alcohol evaporation stage, and c) a glycerin phase decantation stage. The supernatant ester phase obtained after decantation is then optionally sent to a coalescer, also allowing separation of the glycerin, then to a purification stage by adsorption on solids. This improved method prevents microemulsion formation.Type: GrantFiled: June 9, 2008Date of Patent: August 27, 2013Assignee: IFP Energies nouvellesInventors: Abdelhakim Koudil, Romain Rousset, Laurent Bournay, Vincent Coupard
-
Patent number: 8350071Abstract: The present invention describes a method of producing fatty acid alkyl esters and glycerin implementing, in a reaction section, a set of transesterification reactions between a vegetable or animal oil and an aliphatic monoalcohol, and using a heterogeneous solid catalyst, comprising: a) a stage of recontacting the effluent coming from the reaction section, and separated from the excess alcohol, with a glycerin phase, b) a stage of mixing said effluent with said glycerin phase, and c) a glycerin phase decantation stage. The supernatent ester phase obtained after decantation is then optionally sent to a coalescer, also allowing separation of the glycerin, then to a purification stage by adsorption on solids.Type: GrantFiled: June 9, 2008Date of Patent: January 8, 2013Assignee: IFP Energies nouvellesInventors: Abdelhakim Koudil, Romain Rousset, Laurent Bournay, Franck Gaviot-Blanc
-
Publication number: 20100292493Abstract: The present invention describes a method of producing fatty acid alkyl esters and glycerin implementing, in a reaction section, a set of transesterification reactions between a vegetable or animal oil and an aliphatic monoalcohol, and using a heterogeneous solid catalyst, comprising: a) a stage of recontacting the effluent coming from the reaction section, and separated from the excess alcohol, with a glycerin phase, b) a stage of mixing said effluent with said glycerin phase, and c) a glycerin phase decantation stage. The supernatent ester phase obtained after decantation is then optionally sent to a coalescer, also allowing separation of the glycerin, then to a purification stage by adsorption on solids.Type: ApplicationFiled: June 9, 2008Publication date: November 18, 2010Applicant: IFPInventors: Abdelhakim Koudil, Romain Rousset, Laurent Bournay, Franck Gaviot-Blanc
-
Publication number: 20100286436Abstract: The present invention describes a method of producing fatty acid alkyl esters and glycerin implementing, in a reaction section, a set of transesterification reactions between a vegetable or animal oil and an aliphatic monoalcohol, and using a heterogeneous solid catalyst, comprising: a) a glycerin phase introduction stage, b) an excess alcohol evaporation stage, and c) a glycerin phase decantation stage. The supernatant ester phase obtained after decantation is then optionally sent to a coalescer, also allowing separation of the glycerin, then to a purification stage by adsorption on solids. This improved method prevents microemulsion formation.Type: ApplicationFiled: June 9, 2008Publication date: November 11, 2010Applicant: IFPInventors: Abdelhakim Koudil, Romain Rousset, Laurent Bournay, Vincent Coupard