Patents by Inventor Jerome Pigourier
Jerome Pigourier 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: 11898108Abstract: A process for hydrocracking a petroleum feedstock involves: (a) hydrocracking the feedstock to obtain a hydrocracked effluent; (b) liquid/gas separation of the effluent to obtain a gaseous effluent and a liquid effluent; (c) fractionating the liquid effluent at a pressure P1, producing a first distillate and a first residue, (d) recycling a first portion of the first residue to hydrocracking, (e) rectifying a second portion of the first residue at a pressure P2 lower than or equal to the pressure P1, to obtain a secondary distillate, a secondary residue and a vapor stream, (f) purging a portion of the secondary residue, and (g) recycling all or part of the secondary distillate to hydrocracking.Type: GrantFiled: June 16, 2022Date of Patent: February 13, 2024Assignee: AXENSInventors: Jerome Bonnardot, Hugues Dulot, Alexis Paillier, Jerome Pigourier, Nicolas Pupat
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Patent number: 11242302Abstract: The present invention describes a process for obtaining para-xylene from a feedstock containing xylenes, ethylbenzene and C9+ hydrocarbons, said process comprising a single stage A of separation in a simulated moving bed carried out with a zeolite as adsorbent and a desorbent and making it possible to obtain at least three fractions, a fraction A1 comprising a mixture of para-xylene and of desorbent and two fractions A21, A22 comprising ethylbenzene (EB), ortho-xylene (OX) and meta-xylene (MX) and desorbent, said stage is carried out at a temperature between 20° C. and 250° C., under a pressure between the bubble pressure of the xylenes at the operating temperature and 2.0 MPa, and with a ratio by volume of the desorbent to the feedstock in the unit for separation 2 in a simulated moving bed is between 0.4 and 2.Type: GrantFiled: June 21, 2019Date of Patent: February 8, 2022Assignee: AXENSInventors: Isabelle Prevost, Jerome Pigourier, Gerard Hotier
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Patent number: 10954176Abstract: The present invention relates to a process for producing high-purity para-xylene, comprising a single step of separation by adsorption in an SMB, with a subsequent step of separation by distillation in a first three-fraction distillation column producing at least two raffinates and optionally of two isomerization steps, making it possible to improve the overall para-xylene yield of the aromatic loop and to minimize the economic impact.Type: GrantFiled: June 27, 2019Date of Patent: March 23, 2021Assignee: AXENSInventors: Isabelle Prevost, Jerome Pigourier, Pierre-Yves Martin, Arnaud Cotte
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Patent number: 10563140Abstract: An installation and a process which jointly implement compression of acid gases from a hydroconversion or hydrotreatment unit and gaseous effluents from a catalytic cracking unit.Type: GrantFiled: December 22, 2016Date of Patent: February 18, 2020Assignee: AXENSInventors: Odile Lajeunesse, Nicolas Lambert, Jacinthe Frecon, Jerome Pigourier
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Patent number: 10370307Abstract: The invention concerns a process for the oligomerization of ethylene into alpha-olefins, comprising a step for the oligomerization of ethylene, a step for deactivation of the catalyst, a and step for separation of the products, the reactor being provided with a cooling loop (100, 101, 102) by means of which at least a portion of the reaction effluent is moved through at least two switchable heat exchangers, said heat exchangers being cleaned alternately by means of an integrated cleaning device.Type: GrantFiled: December 21, 2017Date of Patent: August 6, 2019Assignees: AXENS, IFP Energies NouvellesInventors: Catherine Boutrot, Nicolas Janot, Xavier Liege, Etienne Niderkorn, Jerome Pigourier, Daniel Jean Vinel, Frederic Favre, Lionel Magna
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Patent number: 10131849Abstract: The present invention describes a process for the isomerization of a light naphtha with a view to forming high octane number gasolines, said process using a deisopentanizer and a deisohexanizer which are thermally integrated in a manner such as to reduce the consumption of the high temperature utilities employed in the process.Type: GrantFiled: April 20, 2015Date of Patent: November 20, 2018Assignee: AXENSInventors: Isabelle Prevost, Laurent Watripont, Pierre-Yves Martin, Jerome Pigourier
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Patent number: 10113121Abstract: The present invention describes a process for the production of high octane number gasoline by isomerization of a light naphtha cut, comprising two separation steps located downstream of the reaction step which can be used to improve the energy efficiency of said process.Type: GrantFiled: April 20, 2015Date of Patent: October 30, 2018Assignee: AXENSInventors: Jerome Pigourier, Isabelle Prevost, Laurent Watripont, Pierre-Yves Martin
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Patent number: 10077220Abstract: In a process for producing para-xylene, at least one feed comprising C6+ aromatic hydrocarbons is supplied to a dividing wall distillation column to separate the feed into a C7? aromatic hydrocarbon-containing stream, a C8 aromatic hydrocarbon-containing stream and a C9+ aromatic hydrocarbon-containing stream. At least part of the C8 aromatic hydrocarbon-containing stream is then supplied to a para-xylene recovery unit to recover para-xylene from the C8 aromatic hydrocarbon-containing stream and produce a para-xylene depleted stream. The para-xylene depleted stream is contacted with a xylene isomerization catalyst in a xylene isomerization zone under conditions effective to isomerize xylenes in the para-xylene depleted stream and produce an isomerized stream, which is then at least partially recycled to the para-xylene recovery unit.Type: GrantFiled: June 5, 2017Date of Patent: September 18, 2018Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michel Molinier, Kevin J. Knob, Dennis J. Stanley, Terri S. Vander Pol, Chunshe J. Cao, Xiaobo Zheng, Thierry LeFlour, Jacques Rault, Stephane Claudel, Isabelle Prevost, Jerome Pigourier, Celia Fernandez
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Publication number: 20170275218Abstract: In a process for producing para-xylene, at least one feed comprising C6+ aromatic hydrocarbons is supplied to a dividing wall distillation column to separate the feed into a C7? aromatic hydrocarbon-containing stream, a C8 aromatic hydrocarbon-containing stream and a C9+ aromatic hydrocarbon-containing stream. At least part of the C8 aromatic hydrocarbon-containing stream is then supplied to a para-xylene recovery unit to recover para-xylene from the C8 aromatic hydrocarbon-containing stream and produce a para-xylene depleted stream. The para-xylene depleted stream is contacted with a xylene isomerization catalyst in a xylene isomerization zone under conditions effective to isomerize xylenes in the para-xylene depleted stream and produce an isomerized stream, which is then at least partially recycled to the para-xylene recovery unit.Type: ApplicationFiled: June 5, 2017Publication date: September 28, 2017Applicant: ExxonMobil Chemical Patents Inc.Inventors: Michel Molinier, Kevin J. Knob, Dennis J. Stanley, Terri S. Vander Pol, Chunshe J. Cao, Xiaobo Zheng, Thierry LeFlour, Jacques Rault, Stephane Claudel, Isabelle Prevost, Jerome Pigourier, Celia Fernandez
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Patent number: 9745232Abstract: A process for the isomerization of a feed of hydrocarbon compounds containing C5 and/or C hydrocarbon compounds, comprising: a) supplying an isomerization unit with at least one liquid fraction of the feed of hydrocarbon compounds and isomerizing the feed in the presence of a chlorinated catalyst; b) supplying a stabilization unit containing at least one stabilization column with the effluent obtained from the isomerization unit and separating the effluent; c) providing an absorption unit having one absorption column; d) extracting a liquid flow enriched in chlorinated compounds from the absorption unit which is recycled to the isomerization unit; and e) extracting the liquid flow containing at least one isomerate from the stabilization unit.Type: GrantFiled: October 19, 2015Date of Patent: August 29, 2017Assignee: AXENSInventors: Jerome Pigourier, Isabelle Prevost, Laurent Watripont, Pierre-Yves Martin
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Patent number: 9708233Abstract: In a process for producing para-xylene, at least one feed comprising C6+ aromatic hydrocarbons is supplied to a dividing wall distillation column to separate the feed into a C7? aromatic hydrocarbon-containing stream, a C8 aromatic hydrocarbon-containing stream and a C9+ aromatic hydrocarbon-containing stream. At least part of the C8 aromatic hydrocarbon-containing stream is then supplied to a para-xylene recovery unit to recover para-xylene from the C8 aromatic hydrocarbon-containing stream and produce a para-xylene depleted stream. The para-xylene depleted stream is contacted with a xylene isomerization catalyst in a xylene isomerization zone under conditions effective to isomerize xylenes in the para-xylene depleted stream and produce an isomerized stream, which is then at least partially recycled to the para-xylene recovery unit.Type: GrantFiled: June 18, 2015Date of Patent: July 18, 2017Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michel Molinier, Kevin J. Knob, Dennis J. Stanley, Terri S. Vander Pol, Chunshe Cao, Xiaobo Zheng, Thierry LeFlour, Jacques Rault, Stephane Claudel, Isabell Prevost, Jerome Pigourier, Celia Fernandez
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Publication number: 20160046544Abstract: In a process for producing para-xylene, at least one feed comprising C6+ aromatic hydrocarbons is supplied to a dividing wall distillation column to separate the feed into a C7? aromatic hydrocarbon-containing stream, a C8 aromatic hydrocarbon-containing stream and a C9+ aromatic hydrocarbon-containing stream. At least part of the C8 aromatic hydrocarbon-containing stream is then supplied to a para-xylene recovery unit to recover para-xylene from the C8 aromatic hydrocarbon-containing stream and produce a para-xylene depleted stream. The para-xylene depleted stream is contacted with a xylene isomerization catalyst in a xylene isomerization zone under conditions effective to isomerize xylenes in the para-xylene depleted stream and produce an isomerized stream, which is then at least partially recycled to the para-xylene recovery unit.Type: ApplicationFiled: June 18, 2015Publication date: February 18, 2016Inventors: Michel Molinier, Kevin J. Knob, Dennis J. Stanley, Terri S. Vander Pol, Chunshe Cao, Xiaobo Zheng, Thierry LeFlour, Jacques Rault, Stephane Claudel, Isabell Prevost, Jerome Pigourier, Celia Fernandez
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Patent number: 8816147Abstract: A process for recovering 1-hexene comprising: a) separating the mixture obtained from the ethylene trimerization reaction into a top fraction comprising ethylene and a bottom fraction, b) separating a portion of the bottom fraction obtained from step a) into a top fraction comprising 1-hexene and 1-butene and a bottom fraction, c) separating a portion of the fraction comprising 1-hexene and 1-butene obtained from step b) into a top fraction principally comprising 1-butene and into a bottom fraction principally comprising 1-hexene, and in said process: a portion of the bottom fraction obtained from step b) is returned to the reaction section and another portion of said bottom fraction obtained from step b) is used in a recirculation loop connecting the reaction section and the column of said step b), said recirculation loop being used to cool the reaction section and to reboil said column of step b).Type: GrantFiled: July 1, 2013Date of Patent: August 26, 2014Assignee: AxensInventors: Daniel-Jean Vinel, Jean-Alain Chodorge, Jerome Pigourier, Pierre-Yves Martin, Laurent Bournay
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Publication number: 20110265511Abstract: The liquefaction method provides fractionation of the natural gas with ethane recycle in order to enhance propane recovery and to increase the critical pressure of the gas to be liquefied. The natural gas is partly liquefied by cooling in E1, then separated in fractionating column 2 into a methane-rich stream and a stream rich in hydrocarbons heavier than methane. The methane-rich stream is partly liquefied in 3, then the condensates separated in drum 4 are recycled to the top of column 2 through line 7. The gas fraction from drum 4 is liquefied in exchanger E2 to produce the liquefied natural gas. The stream rich in hydrocarbons heavier than methane is separated in the deethanizer into an ethane-enriched fraction and heavier hydrocarbons. According to the invention, the ethane-enriched fraction is at least partly liquefied, then part of the liquefied ethane is recycled to separating drum 4 or reflux line 7.Type: ApplicationFiled: October 17, 2008Publication date: November 3, 2011Applicant: IFPInventors: Beatrice Fischer, Anne Lucquin, Gilles Ferschneider, Pierre-Yves Martin, Jerome Pigourier