Patents by Inventor Nathalie Dupassieux
Nathalie Dupassieux 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).
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Patent number: 9321970Abstract: A process for hydrotreatment of a feed from renewable sources such as vegetable oils for the production of paraffinic hydrocarbons comprising pre-treatment by crystallisation and/or precipitation allowing the elimination of insoluble inorganic impurities under hydrotreatment conditions. The flow of the total feed is divided up into a certain number of different, part flows equal to the number of catalytic zones in the reactor, and the different part flows are injected in the successive catalytic zones in increasing proportions to produce an effluent containing paraffinic hydrocarbons.Type: GrantFiled: November 8, 2012Date of Patent: April 26, 2016Assignee: IFP ENERGIES NOUVELLESInventors: Nathalie Dupassieux, Thierry Chapus
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Patent number: 9315737Abstract: A process for hydrotreatment of a feed from renewable sources such as vegetable oils for the production of paraffinic hydrocarbons comprising a pre-treatment step by crystallization and/or precipitation and pre-hydrogenation of the feed under hydrogen allowing the elimination of insoluble inorganic impurities under hydrotreatment conditions and improved exothermal management of the reaction. The effluent is separated to a gas fraction and a liquid fraction containing paraffinic hydrocarbons, a portion of said liquid fraction is recycled.Type: GrantFiled: November 8, 2012Date of Patent: April 19, 2016Assignee: IFP ENERGIES NOUVELLESInventors: Nathalie Dupassieux, Thierry Chapus
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Patent number: 9109168Abstract: A process for hydrotreating a feed originating from renewable sources such as vegetable oils to produce paraffinic hydrocarbons in the presence of hydrogen in excess over the theoretical hydrogen consumption and under hydrotreatment conditions in a fixed bed reactor having a plurality of catalytic zones disposed in series and comprising a hydrotreatment catalyst. The total feed flow is divided into a certain number of different part flows equal to the number of catalytic zones in the reactor; the various part flows are injected into the successive catalytic zones in increasing proportions to produce an effluent comprising paraffinic hydrocarbons. The effluent undergoes a separation step in order to separate a gas fraction and a liquid fraction containing the paraffinic hydrocarbons. At least a portion of said this liquid fraction is recycled to the first catalytic zone so that the weight ratio between said recycle and the part flow introduced into the first catalytic zone is 10 or more.Type: GrantFiled: December 21, 2011Date of Patent: August 18, 2015Assignee: IFP ENERGIES NOUVELLESInventors: Nathalie Dupassieux, Thierry Chapus
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Patent number: 8962905Abstract: Process for the continuous hydrogenation of triglyceride containing raw materials in a fixed bed reactor system having several catalyst beds arranged in series and comprising at least one hydrogenation catalyst comprising an active phase constituted by a nickel and molybdenum element. The raw material feed, hydrogen containing gas and diluting agent are passed together through the catalyst beds at hydrogenation conditions. The raw material feed stream as well as the stream of hydrogen containing gas are divided into an equal number of different partial streams. These are each passed to one catalyst bed in such a manner that the weight ratio of diluting agent to raw material feed is essentially the same at the entrance of all catalyst beds and does not exceed 4:1. The claimed process is preferably conducted at low temperatures and allows the utilization of existing units due to the low recycle ratio.Type: GrantFiled: September 7, 2011Date of Patent: February 24, 2015Assignee: IFP Energies NouvellesInventors: Thierry Chapus, Nathalie Dupassieux, Antoine Daudin
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Patent number: 8877993Abstract: The invention concerns a process for hydrotreatment and/or hydroconversion of a feed of bio-renewable origin containing triglyceride and/or fatty acid structures and wherein the fatty chains contain in the range 8 to 25 carbon atoms, said process comprising the following steps: a) hydrotreatment and/or hydroconversion of said bio-renewable feed in an ebullated bed reactor in the presence of a granular catalyst comprising, on an amorphous support, at least one metal or compound of a metal having a hydrodehydrogenating function, to produce a first effluent; b) sending the effluent produced in step a) to a distillation zone from which a gaseous fraction and at least one distillate cut the end point of which is less than 400° C.Type: GrantFiled: July 18, 2008Date of Patent: November 4, 2014Assignee: IFP Energies NouvellesInventors: Thierry Chapus, Alain Quignard, Nathalie Dupassieux, Antoine Daudin
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Patent number: 8324439Abstract: A method of treating feedstocks from renewable sources in order to produce diesel fuel bases of excellent quality. The feedstocks used can be, for example, raw vegetable oils or such oils that have been previously subjected to a prerefining stage, animal fats, or mixtures of such feedstocks. The method includes fixed bed catalytic hydrotreatment, followed by fixed bed hydroisomerization with a catalyst based on monodimensional 10 MR zeolite and at least one metal from group VIII and/or VIB.Type: GrantFiled: June 23, 2009Date of Patent: December 4, 2012Assignee: IFP Energies NouvellesInventors: Emmanuelle Guillon, Christophe Bouchy, Nathalie Dupassieux, Antoine Daudin, Thierry Chapus
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Patent number: 8282815Abstract: The invention relates to a method of treating feedstocks from renewable sources without intermediate gas-liquid separation in order to produce diesel fuel bases of excellent quality. The feedstocks used can be raw vegetable oils or such oils that have been previously subjected to a prerefining stage, animal fats, or mixtures of such feedstocks. The invention relates to a method allowing high diesel fuel base yields to be obtained from such feedstocks.Type: GrantFiled: June 24, 2009Date of Patent: October 9, 2012Assignee: IFP Energies nouvellesInventors: Christophe Bouchy, Antoíne Daudin, Emmanuelle Guillon, Nathalie Dupassieux, Thierry Chapus
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Publication number: 20120216450Abstract: The invention relates to a method of hydrotreatment in co-processing of petroleum feeds, in a mixture with at least one feed obtained from renewable sources, for producing fuel bases (kerosene and/or gas oil) having a sulphur content below 10 ppm, said method comprising the following stages: a) a first hydrotreatment stage in which said feed passes through at least one first fixed-bed catalytic zone comprising at least one bulk or supported catalyst comprising an active phase constituted by at least one group VIB element and at least one group VIII element, said elements being in the form of sulphide and the atomic ratio of the group VIII metal (or metals) to group VIB metal (or metals) being strictly greater than 0 and less than 0.095, b) a second hydrotreatment stage into which the effluent from the first hydrotreatment stage is sent directly, and in which said effluent passes through at least one second fixed-bed catalytic zone comprising at least one hydrotreatment catalyst.Type: ApplicationFiled: July 27, 2010Publication date: August 30, 2012Applicant: IFP ENERGIES NOUVELLESInventors: Nathalie Dupassieux, Antoine Daudin, Thierry Chapus
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Publication number: 20120165581Abstract: The invention concerns a process for hydrotreating a feed originating from renewable sources such as vegetable oils to produce paraffinic hydrocarbons in the presence of hydrogen in excess over the theoretical hydrogen consumption and under hydrotreatment conditions in a fixed bed reactor having a plurality of catalytic zones disposed in series and comprising a hydrotreatment catalyst. The total feed flow is divided into a certain number of different part flows equal to the number of catalytic zones in the reactor; the various part flows are injected into the successive catalytic zones in increasing proportions to produce an effluent comprising paraffinic hydrocarbons. The effluent undergoes a separation step in order to separate a gas fraction and a liquid fraction containing the paraffinic hydrocarbons. At least a portion of said liquid fraction is recycled to the first catalytic zone so that the weight ratio between said recycle and the part flow introduced into the first catalytic zone is 10 or more.Type: ApplicationFiled: December 21, 2011Publication date: June 28, 2012Applicant: IFP ENERGIES NOUVELLESInventors: Nathalie Dupassieux, Thierry Chapus
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Patent number: 8197559Abstract: Process for the continuous hydrogenation of triglyceride containing raw materials in a fixed bed reactor system having several catalyst beds arranged in series and comprising hydrogenation catalyst. The raw material feed, hydrogen containing gas and diluting agent are passed together through the catalyst beds at hydrogenation conditions. The raw material feed stream as well as the stream of hydrogen containing gas are divided into an equal number of different partial streams. These are each passed to one catalyst bed in such a manner that the weight ratio of diluting agent to raw material feed is essentially the same at the entrance of all catalyst beds and does not exceed 4:1. The claimed process is preferably conducted at low temperatures and allows the utilization of existing units due to the low recycle ratio. Further, a sufficient excess of hydrogen is used so that no valuable product is lost through decarb-reactions.Type: GrantFiled: March 4, 2010Date of Patent: June 12, 2012Assignee: IFP Energies nouvellesInventors: Detlef Abe, Frank Eschenroder, David Laban, Hartmut Schutter, Laurent Bournay, Thierry Chapus, Nathalie Dupassieux
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Publication number: 20120059209Abstract: Process for the continuous hydrogenation of triglyceride containing raw materials in a fixed bed reactor system having several catalyst beds arranged in series and comprising at least e hydrogenation catalyst comprising an active phase constituted by a nickel and molybdenum element. The raw material feed, hydrogen containing gas and diluting agent are passed together through the catalyst beds at hydrogenation conditions. The raw material feed stream as well as the stream of hydrogen containing gas are divided into an equal number of different partial streams. These are each passed to one catalyst bed in such a manner that the weight ratio of diluting agent to raw material feed is essentially the same at the entrance of all catalyst beds and does not exceed 4:1. The claimed process is preferably conducted at low temperatures and allows the utilization of existing units due to the low recycle ratio.Type: ApplicationFiled: September 7, 2011Publication date: March 8, 2012Applicant: IFP ENERGIES NOUVELLESInventors: Thierry CHAPUS, Nathalie Dupassieux, Antoine Daudin
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Publication number: 20100325943Abstract: The invention concerns a process for hydrotreatment and/or hydroconversion of a feed of bio-renewable origin containing triglyceride and/or fatty acid structures and wherein the fatty chains contain in the range 8 to 25 carbon atoms, said process comprising the following steps: a) hydrotreatment and/or hydroconversion of said bio-renewable feed in an ebullated bed reactor in the presence of a granular catalyst comprising, on an amorphous support, at least one metal or compound of a metal having a hydrodehydrogenating function, to produce a first effluent; b) sending the effluent produced in step a) to a distillation zone from which a gaseous fraction and at least one distillate cut the end point of which is less than 400° C.Type: ApplicationFiled: July 18, 2008Publication date: December 30, 2010Inventors: Thierry Chapus, Alain Quignard, Nathalie Dupassieux, Antoine Daudin
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Publication number: 20100242349Abstract: Process for the continuous hydrogenation of triglyceride containing raw materials in a fixed bed reactor system having several catalyst beds arranged in series and comprising hydrogenation catalyst. The raw material feed, hydrogen containing gas and diluting agent are passed together through the catalyst beds at hydrogenation conditions. The raw material feed stream as well as the stream of hydrogen containing gas are divided into an equal number of different partial streams. These are each passed to one catalyst bed in such a manner that the weight ratio of diluting agent to raw material feed is essentially the same at the entrance of all catalyst beds and does not exceed 4:1. The claimed process is preferably conducted at low temperatures and allows the utilization of existing units due to the low recycle ratio. Further, a sufficient excess of hydrogen is used so that no valuable product is lost through decarb-reactions.Type: ApplicationFiled: March 4, 2010Publication date: September 30, 2010Applicant: IFPInventors: Detlef Abe, Frank Eschenroder, David Laban, Hartmut Schutter, Laurent Bournay, Thierry Chapus, Nathalie Dupassieux
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Publication number: 20090326290Abstract: The invention relates to a method of treating feedstocks from renewable sources without intermediate gas-liquid separation in order to produce diesel fuel bases of excellent quality. The feedstocks used can be raw vegetable oils or such oils that have been previously subjected to a prerefining stage, animal fats, or mixtures of such feedstocks. The invention relates to a method allowing high diesel fuel base yields to be obtained from such feedstocks.Type: ApplicationFiled: June 24, 2009Publication date: December 31, 2009Applicant: IFPInventors: Christophe Bouchy, Antoine Daudin, Emmanuelle Guillon, Nathalie Dupassieux, Thierry Chapus
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Publication number: 20090318740Abstract: The invention relates to a method of treating feedstocks from renewable sources in order to produce diesel fuel bases of excellent quality. The feedstocks used can be, for example, raw vegetable oils or such oils that have been previously subjected to a prerefining stage, animal fats, or mixtures of such feedstocks. The invention relates to a method allowing high diesel fuel base yields to be obtained from such feedstocks.Type: ApplicationFiled: June 23, 2009Publication date: December 24, 2009Applicant: IFPInventors: Emmanuelle GUILLON, Christophe Bouchy, Nathalie Dupassieux, Antoine Daudin, Thierry Chapus
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Patent number: 7267775Abstract: The invention relates to a method and to a plant for processing a gas by means of a glycol solution wherein a feed comprising a gas, a glycol, water and salts is subjected to a first stage (5) of separating the gas from a liquid effluent and said liquid effluent is subjected to a dehydration stage (14) to recover a dehydrated liquid effluent, characterized in that the salts contained in the liquid effluent, dehydrated or not, are eliminated in a membrane separation stage (10) by means of a driving force generated by mechanical pressure difference on either side of a membrane of pore size ranging between 5 and 100 Angstrom. The invention also relates to the use of the method and of the plant for regeneration of a liquid compound of the glycol family used for hydrate formation prevention when using a natural gas.Type: GrantFiled: July 30, 2004Date of Patent: September 11, 2007Assignee: Institut Francais du PetroleInventors: Arnaud Baudot, Nathalie Dupassieux, Sophie Montes
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Publication number: 20050022665Abstract: The invention relates to a method and to a plant for processing a gas by means of a glycol solution wherein a feed comprising a gas, a glycol, water and salts is subjected to a first stage (5) of separating the gas from a liquid effluent and said liquid effluent is subjected to a dehydration stage (14) to recover a dehydrated liquid effluent, characterized in that the salts contained in the liquid effluent, dehydrated or not, are eliminated in a membrane separation stage (10) by means of a driving force generated by mechanical pressure difference on either side of a membrane of pore size ranging between 5 and 100 Angstrom. The invention also relates to the use of the method and of the plant for regeneration of a liquid compound of the glycol family used for hydrate formation prevention when using a natural gas.Type: ApplicationFiled: July 30, 2004Publication date: February 3, 2005Inventors: Arnaud Baudot, Nathalie Dupassieux, Sophie Montes