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公开(公告)号：US11624032B2
公开(公告)日：2023-04-11
申请号：US17147543
申请日：2021-01-13
申请人： AXENS
发明人： Pierre-Yves Lanfrey
摘要： The present invention relates to the extraction of gasoline from a gas G, with
(a) a step of extracting gasoline from the gas to be treated comprising methanol GM obtained from step (d),
(b) a step of separating said fluid GL1 partially condensed in step (a), producing a first aqueous liquid phase A1, a first liquid phase H1 of hydrocarbon(s) a gaseous phase G1 obtained from the gas G; (c) a step of contacting a portion of the gas G to be treated with said first aqueous liquid phase A1, producing a second aqueous liquid phase A2, a gaseous phase of gas to be treated comprising methanol GM′; (d) a step of mixing said gaseous phase of gas to be treated comprising methanol GM′ with the remainder of the gas G to be treated, producing a gas to be treated comprising methanol GM,
(e) a step of stabilizing said first liquid phase H1 of hydrocarbon(s).-
公开(公告)号：US20230035172A1
公开(公告)日：2023-02-02
申请号：US17786103
申请日：2020-12-09
申请人： AXENS
发明人： Robin CHAL
摘要： The present invention relates to a calcined medium, in particular a catalyst or a catalyst medium or an adsorbent/absorbent mass, in particular in the form of extrudates, pellets, granules or beads, the medium comprising a porous matrix comprising carbonates, clays, zeolites, oxides, or metal and/or silicon hydroxides, and the matrix incorporating hollow mineral microspheres having a different composition in a content of between 0.3 and 50% by weight, in particular between 0.5 and 15% by weight, of the matrix.
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公开(公告)号：US11549072B1
公开(公告)日：2023-01-10
申请号：US17472987
申请日：2021-09-13
申请人： Axens North America
发明人： Trushit Oza , Yu-Hwa Chang
摘要： The invention relates to an improved system and method for relief of hot, high pressure, fouling fluid from the 1st Stage Reactor and the ISS in case of an unintended overpressure situation while allowing the quick establishing of normal fluid flow path once the overpressure situation has been corrected. This allows for rapid cooling of all subsequent reactor stages while minimizing VGO slop generation that needs reprocessing.
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公开(公告)号：US20220403262A1
公开(公告)日：2022-12-22
申请号：US17841829
申请日：2022-06-16
申请人： AXENS
摘要： 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.
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公开(公告)号：US11242302B2
公开(公告)日：2022-02-08
申请号：US17256290
申请日：2019-06-21
申请人： AXENS
摘要： 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 2.5, a stage B of fractionation by distillation in a 2-cut distillation column of the fractions A21 and A22 resulting from stage A, in which said fractions are introduced separately at distinct injection points, and makes it possible to obtain a fraction B2 containing ethylbenzene, ortho-xylene and meta-xylene, and a fraction B42 devoid of aromatic compounds having 8 carbon atoms and containing desorbent.
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公开(公告)号：US10954176B2
公开(公告)日：2021-03-23
申请号：US16454406
申请日：2019-06-27
申请人： AXENS
摘要： 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.
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公开(公告)号：US10815436B2
公开(公告)日：2020-10-27
申请号：US16227606
申请日：2018-12-20
申请人： AXENS
IPC分类号： C10G45/22 , C10G49/00 , C10G45/00 , B01J19/00 , C10G47/00 , C10G67/02 , F28D7/02 , F28D21/00
摘要： The present invention relates to a device and a process for hydroconversion or hydrotreatment of a hydrocarbon feedstock, comprising in particular at least one coil-wound heat exchanger (S-1), said coil-wound exchanger being a single-pass heat exchanger formed by a vertical chamber in which one or more bundles of tubes are helically wound around a central core, as numerous superposed layers, for: heating and directly distributing a hydrocarbon feedstock/hydrogen stream mixture to a hydrotreatment or hydroconversion reaction section (R-1), and cooling the reaction effluent from the hydrotreatment or hydroconversion reaction section (R-1). The present invention also relates to a use of a coil-wound heat exchanger (S-1) in a process for hydroconversion or hydrotreatment of a hydrocarbon feedstock.
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公开(公告)号：US10780398B2
公开(公告)日：2020-09-22
申请号：US15907388
申请日：2018-02-28
申请人： AXENS
IPC分类号： B01D53/14 , B01D53/52 , B01D53/78 , B01D53/96 , C02F1/02 , C02F1/72 , C10G19/08 , C10G21/06 , C10G21/28 , C10L3/12 , C02F103/18 , C02F103/36
摘要： The present invention relates to the field of extraction of sulphur-containing compounds such as mercaptans, COS, H2S or CS2 from a hydrocarbon cut. This selective extraction is carried out by bringing the hydrocarbon cut in the liquid phase into contact with an alkaline solution, for example caustic soda. The process in accordance with the invention is an improved process for the regeneration of alkaline solution which can be used to reduce the quantity of alkaline solution necessary in the regeneration section.
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公开(公告)号：US10744489B2
公开(公告)日：2020-08-18
申请号：US16006065
申请日：2018-06-12
申请人： AXENS , IFP Energies nouvelles
发明人： Delphine Bazer-Bachi , David Chiche , Joseph Lopez , Thomas Serres , Tom Frising , Olivier Ducreux , Patrick Euzen
IPC分类号： B01J23/72 , B01J21/16 , B01J35/00 , B01J37/00 , B01J37/04 , B01J37/08 , C10L3/10 , C10G25/00 , C01B3/16 , B01D15/08 , B01D53/02 , C07C29/154 , C04B35/632 , B01D53/04 , C04B35/45 , B01D53/48 , C04B35/63
摘要： The invention relates to a method for preparing a solid comprising a step of mixing a set of compounds comprising at least two Cu2(OH)2CO3 powders of different particle sizes and at least one binder and the use of the solid prepared by means of this method.
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10.发明授权公开(公告)号：US10465127B2
公开(公告)日：2019-11-05
申请号：US15538234
申请日：2015-12-17
申请人： AXENS
摘要： The invention concerns a process and a facility for reducing the concentration of heavy polycyclic aromatic compounds (HPNA) in the recycle loop of hydrocracking units, which comprises a fractionation column.In accordance with this process, a stream is withdrawn from the fractionation column at the level of at least one plate located between the supply plate and the plate for withdrawing the heaviest distillate fraction; the stream is stripped in an external stripping step by a stripping gas, in the presence of a portion of the residue. The separated gaseous effluent is recycled to the column, advantageously as a stripping gas, and the liquid fraction is recycled to the hydrocracking step; a residue is purged in the stripping step.
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