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    HYDROCRACKING PROCESS
    2.
    发明申请
    HYDROCRACKING PROCESS 有权

    公开(公告)号：US20220403262A1

    公开(公告)日：2022-12-22

    申请号：US17841829

    申请日：2022-06-16

    Applicant: AXENS

    Inventor： Jerome BONNARDOT ,  Hugues DULOT ,  Alexis PAILLIER ,  Jerome PIGOURIER ,  Nicolas PUPAT

    IPC: C10G67/02 ,  B01J19/00 ,  B01J19/24 ,  B01D3/14 ,  B01D3/34 ,  B01D3/42

    Abstract: 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.

    Fractionation process for a process for oligomerising light olefins
    3.
    发明申请
    Fractionation process for a process for oligomerising light olefins 审中-公开

    公开(公告)号：US20170175014A1

    公开(公告)日：2017-06-22

    申请号：US15388232

    申请日：2016-12-22

    Applicant: AXENS

    Inventor： Isabelle PREVOST ,  Jerome PIGOURIER

    IPC: C10G57/02

    CPC classification number: C10G57/02 ,  C10G7/00 ,  C10G7/02 ,  C10G50/00 ,  C10G2300/1092 ,  C10G2400/02 ,  C10G2400/06 ,  C10G2400/28

    Abstract: The invention relates to a process for oligomerising light olefins in which the effluent from the oligomerisation section is passed to a prefractionator that leads to at least one head fraction containing a mixture of liquefied petroleum gas and light gasoline and a bottom fraction containing a mixture of heavy gasoline and middle distillate, the said head fraction being passed to a debutaniser that leads to at least one liquefied petroleum gas cut and a light gasoline cut, the said bottom fraction and at least part of the said light gasoline cut being passed to a separator enabling at least a gaseous fraction, a gasoline fraction and a gasoil fraction to be obtained.

    METHOD FOR PRODUCING PARAXYLENE USING A SIMULATED MOVING-BED STEP, AND A STEP OF FRACTIONATING TWO FRACTIONS IN A TWO-SECTION COLUMN
    7.
    发明申请
    METHOD FOR PRODUCING PARAXYLENE USING A SIMULATED MOVING-BED STEP, AND A STEP OF FRACTIONATING TWO FRACTIONS IN A TWO-SECTION COLUMN 有权

    公开(公告)号：US20210261483A1

    公开(公告)日：2021-08-26

    申请号：US17256290

    申请日：2019-06-21

    Applicant: AXENS

    Inventor： Isabelle PREVOST ,  Jerome PIGOURIER ,  Gerard HOTIER

    IPC: C07C7/00 ,  C07C7/13 ,  C07C7/04 ,  C07C5/27 ,  B01D15/18 ,  B01D3/14 ,  B01D3/32

    Abstract: 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.

    PROCESS FOR THE ISOMERIZATION OF C5/C6 HYDROCARBON CUTS WITH CHLORINATED COMPOUND RECYCLING
    9.
    发明申请
    PROCESS FOR THE ISOMERIZATION OF C5/C6 HYDROCARBON CUTS WITH CHLORINATED COMPOUND RECYCLING 有权
    C5 / C6碳氢化合物与氯化化合物回收异构化方法

    公开(公告)号：US20160107954A1

    公开(公告)日：2016-04-21

    申请号：US14886912

    申请日：2015-10-19

    Applicant: AXENS

    Inventor： Jerome PIGOURIER ,  Isabelle PREVOST ,  Laurent WATRIPONT ,  Pierre-Yves MARTIN

    IPC: C07C5/27

    CPC classification number: C07C5/2772 ,  C07C5/2791 ,  C07C7/11 ,  C07C2521/04 ,  C07C2523/42 ,  C07C2527/06 ,  C10G35/04 ,  C10G45/60 ,  C07C9/16 ,  C07C9/18

    Abstract: A process for the isomerization of a feed of hydrocarbon compounds containing C5 and/or C6 hydrocarbon compounds, in which process: a) an isomerization unit (1) is supplied with at least one liquid fraction of the feed of hydrocarbon compounds and the isomerization is carried out in the presence of a chlorinated catalyst; b) a stabilization unit (20) containing at least one stabilization column (2) is supplied with the effluent obtained from the isomerization unit (1) and a separation is carried out in the stabilization unit (20); c) an absorption unit (7) contains at least one absorption column (3); d) a liquid flow enriched in chlorinated compounds is extracted from the absorption unit (7) and returned to the isomerization unit (1); e) the liquid flow containing at least one isomerate of the feed of hydrocarbon compounds is extracted from the stabilization unit (20).

    Abstract translation: 含有C5和/或C6烃化合物的烃化合物进料异构化的方法，其中方法：a）异构化单元（1）被供给至少一种烃化合物进料的液体馏分，异构化为 在氯化催化剂存在下进行; b）将含有至少一个稳定塔（2）的稳定单元（20）供给从异构化单元（1）获得的流出物，并在稳定单元（20）中进行分离; c）吸收单元（7）包含至少一个吸收塔（3）; d）从吸收单元（7）中提取富含氯化合物的液体流并返回到异构化单元（1）; e）从稳定单元（20）中提取含有烃化合物进料的至少一种异构体的液体流。

    PROCESS FOR SEPARATING 1-HEXENE FROM A MIXTURE OF PRODUCTS OBTAINED FROM AN ETHYLENE TRIMERIZATION ZONE
    10.
    发明申请
    PROCESS FOR SEPARATING 1-HEXENE FROM A MIXTURE OF PRODUCTS OBTAINED FROM AN ETHYLENE TRIMERIZATION ZONE 有权
    从乙烯三聚区获得的产品混合物中分离1-HEXENE的方法

    公开(公告)号：US20140012059A1

    公开(公告)日：2014-01-09

    申请号：US13932032

    申请日：2013-07-01

    Applicant: AXENS

    Inventor： Daniel-Jean VINEL ,  Jean-Alain CHODORGE ,  Jerome PIGOURIER ,  Pierre-Yves MARTIN ,  Laurent BOURNAY

    IPC: C07C7/04

    CPC classification number: C07C7/04 ,  C07C7/005 ,  C07C11/107

    Abstract: 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).

    Abstract translation: 一种回收1-己烯的方法，包括：a）将由乙烯三聚反应获得的混合物分离成包含乙烯和底部馏分的顶部馏分，b）将由步骤a）获得的底部馏分的一部分分离成顶馏分， 1-己烯和1-丁烯和底部馏分，c）将由步骤b）获得的包含1-己烯和1-丁烯的馏分的一部分分离成主要包含1-丁烯的顶馏分，并将其分馏成主要包含1 - 己烯，并且在所述方法中：将从步骤b）获得的底部馏分的一部分返回到反应段，并且将从步骤b）获得的所述底部馏分的另一部分用于连接反应段和塔的再循环回路 在所述步骤b）中，所述再循环回路用于冷却反应段并重新沸腾步骤b）的所述塔。

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