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公开(公告)号：US20250051514A1
公开(公告)日：2025-02-13
申请号：US18717544
申请日：2022-12-06
Applicant: IFP ENERGIES NOUVELLES , JEPLAN, INC.
Inventor： Guillaume BLANCKE , David CHICHE , Frederic FAVRE , Damien LEINEKUGEL LE COCQ , Adrien MEKKI-BERRADA
IPC: C08G63/80 , C08G63/183 , C08G63/685 , C08G63/85
Abstract: The present invention relates to a process for the production of a polyester, comprising: a) a stage of esterification of a mixture comprising a monomer A of formula 1 and a monomer B of formula 2 or a monomer A of formula 1, a monomer B of formula 2 and isophthalic acid, in which R1 is chosen from the group consisting of: —(CH2)n—, with n an integer of between 2 and 4, —(CH2—CHR2)—, with R2 chosen from linear or branched alkyl groups comprising between 1 and 6 carbon atoms (C1-C6) and a phenyl group, then b) a stage of polycondensation.
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2.发明公开公开(公告)号：US20240287279A1
公开(公告)日：2024-08-29
申请号：US18571049
申请日：2022-06-07
Applicant: IFP ENERGIES NOUVELLES , JEPLAN, INC.
Inventor： DAVID CHICHE , Guillaume BLANCKE , Damien LEINEKUGEL LE COCQ , Frederic FAVRE , Yacine HAROUN , Olivier THINON , Adrien MEKKI-BERRADA , Mayara AZIN GONDIM PAIVA , Charles BONNIN , Cyprien CHARRA
CPC classification number: C08J11/24 , C07C67/52 , C07C2601/16 , C08J2367/03
Abstract: The present invention relates to a process for depolymerization of a polyester feedstock comprising PET, comprising:
a) a step for conditioning the polyester feedstock, to produce a conditioned feedstock stream;
b) a step of depolymerization of the conditioned feedstock stream, at a temperature of between 150 and 300° C., in the presence of diol with a ratio by weight between the diol and the diester in the feedstock of between 0.3 and 8.0, to produce a reaction effluent;
c) a step of separation of the diol from the reaction effluent, to produce at least a liquid monomers effluent;
d) a step of separation of the liquid monomers effluent into a heavy impurities effluent and a prepurified monomers effluent; and
e) a step of purification of the prepurified monomers effluent, comprising a substep e1) of adsorption at a temperature of between 50 and 200° C. and a crystallization substep e2), and producing at least one decolourized purified diester monomer effluent.-
公开(公告)号：US20230093889A1
公开(公告)日：2023-03-30
申请号：US17956291
申请日：2022-09-29
Applicant: IFP Energies Nouvelles
Inventor： Guillaume BLANCKE , Amir Hossein AHMADI-MOTLAGH , Alexandre VONNER , Mohamed DAHRAOUI , Ayoub ABOURICHA
Abstract: Distribution and collection panel comprising an upper screen (4), a collector (5), a separation plate (6) with outlet openings (11), a distributor (7), a lower screen (8), an injection/withdrawal tank (9) adjacent to the separation plate, and a jet breaker element (12) perpendicular to the flow (E) of a main fluid and comprising two solid jet breaker plates (13) that are: extended on either side of the injection/withdrawal tank; juxtaposed with the lower screen; disposed beneath the outlet openings (11); designed to direct the main fluid in the distributor in a direction orthogonal to the direction of the flow (E), the ratio I/L of the width I of the solid jet breaker plate to the width L of the lateral part of the separation plate being at least 0.1.
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Patent Agency Ranking
公开(公告)号：US20250059318A1
公开(公告)日：2025-02-20
申请号：US18720561
申请日：2022-12-06
Applicant: IFP ENERGIES NOUVELLES , JEPLAN, INC.
Inventor： Guillaume BLANCKE , David CHICHE , Frederic FAVRE , Damien LEINEKUGEL LE COCQ , Charles-Philippe LIENEMANN , Adrien MEKKI-BERRADA
IPC: C08G63/183 , C07C69/82
Abstract: The invention relates to a composition predominantly comprising BHET and exhibiting a nitrogen content of less than or equal to 10 ppm by weight, the nitrogen content being determined according to a chemiluminescence method, with a stream of ozone at 35 cm3/min, after oxidative combustion of a sample in liquid form, prepared by diluting the composition in tetrahydrofuran, at a temperature of 1050-1100° C. and in the presence of an oxidizing mixture composed of oxygen and helium, and using a calibration curve made using a standard of diphenylamine diluted in toluene.
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公开(公告)号：US20240351973A1
公开(公告)日：2024-10-24
申请号：US18571364
申请日：2022-06-07
Applicant: IFP ENERGIES NOUVELLES , JEPLAN, INC.
Inventor： David CHICHE , Guillaume BLANCKE , Damien LEINEKUGEL LE COCQ
CPC classification number: C07C67/56 , B01D9/005 , B01D15/08 , B01J20/20 , B01D2009/0086
Abstract: The present invention relates to a process for purifying a crude diester monomer feedstock comprising:
a) a step of mixing the crude diester monomer feedstock with an aqueous solvent, at a temperature of between 60° C. and 150° C., in order to obtain a diester monomer aqueous mixture, the amount of aqueous solvent introduced being adjusted so that the crude diester monomer feedstock represents between 20% and 90% of the total weight of the diester monomer aqueous mixture;
b) a step of adsorbing the diester monomer aqueous mixture, at a temperature of between 60° C. and 150° C. and a pressure of between 0.1 and 1.0 MPa, in order to obtain a purified monomer effluent.-
6.发明公开公开(公告)号：US20240173647A1
公开(公告)日：2024-05-30
申请号：US18283737
申请日：2022-03-15
Applicant: IFP ENERGIES NOUVELLES
Inventor： Alexandre VONNER , Damien LEINEKUGEL-LE-COCQ , Guillaume BLANCKE , Frédéric AUGIER , Aude ROYON-LEBEAUD , Manel FOURATI , Amir Hossein AHMADI-MOTLAGH
IPC: B01D15/18
CPC classification number: B01D15/1842
Abstract: The present invention relates to a device and a process for separation by simulated moving bed comprising a plurality of adsorbers (1, 2) which are positioned in series and arranged alternately for upflow and downflow, each adsorber (1, 2) being divided into n adsorption chambers each comprising one adsorbent bed, the n adsorbent beds being separated by n plates for injecting at least one feed and a desorbent and withdrawing at least one extract and a raffinate.
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公开(公告)号：US20230278001A1
公开(公告)日：2023-09-07
申请号：US18018068
申请日：2021-07-20
Applicant: IFP Energies Nouvelles
Inventor： Alexandre VONNER , Damien LEINEKUGEL LE COCQ , Guillaume BLANCKE , Frederic AUGIER , Aude ROYON-LEBEAUD , Manel FOURATI , Amir Hossein AHMADI-MOTLAGH
CPC classification number: B01J19/2415 , B01J4/004 , B01D15/1842 , B01J2204/002
Abstract: The present invention relates to a device, a column and a method for radial separation or reaction, wherein the adsorption chamber (9) has a charging height (H3) greater than the height of the distribution duct (6) and the height of the collecting duct (8), and the upper wall (2) of the adsorption chamber (9) comprises at least one inlet (16) for washing solvent.
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公开(公告)号：US20200330942A1
公开(公告)日：2020-10-22
申请号：US16956998
申请日：2018-11-30
Applicant: IFP Energies nouvelles
Inventor： Guillaume BLANCKE , Morgane JOSSERAND , Danielle RICHARD , Catherine LAROCHE
IPC: B01J2/30 , B01F9/02 , C10M105/36 , B01J8/00
Abstract: The invention relates to a pretreatment process for improving the filling of a chamber with solid particles, in which said solid particles are mixed before loading of said solid particles into the chamber with at least one lubricant that is solid at ambient temperature chosen from saturated fatty acids having 14 or more carbon atoms, metal salts of saturated fatty acids having 14 or more carbon atoms, esters of fatty acids having 14 or more carbon atoms, fatty alcohols having 14 or more carbon atoms, linear N-alkanes having 16 or more carbon atoms in solid form, fumaric acid, talc, sodium stearoyl fumarate, the lubricant being introduced at a content of between 0.01% and 1% relative to the total weight of the mixture of solid particles and lubricant. The invention also relates to the use of the process for the pretreatment of particles of adsorbents for the separation of xylenes.
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