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.

公开(公告)号：US20170044447A1

公开(公告)日：2017-02-16

申请号：US15307593

申请日：2015-04-20

Applicant: AXENS

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

IPC: C10G61/02 ,  C10L1/06

CPC classification number: C10G61/02 ,  C10G7/00 ,  C10G45/58 ,  C10G2300/104 ,  C10G2300/1044 ,  C10G2400/02 ,  C10L1/06 ,  C10L2200/0423 ,  C10L2290/543

Abstract: 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.

Abstract translation: 本发明描述了通过轻石脑油切割的异构化生产高辛烷值汽油的方法，包括位于反应步骤下游的两个分离步骤，其可用于提高所述方法的能量效率。

公开(公告)号：US20200002252A1

公开(公告)日：2020-01-02

申请号：US16454406

申请日：2019-06-27

Applicant: AXENS

Inventor： Isabelle PREVOST ,  Jerome PIGOURIER ,  Pierre-Yves MARTIN ,  Arnaud COTTE

IPC: C07C15/08 ,  C07C7/04 ,  B01D3/14

Abstract: 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.

公开(公告)号：US20150336023A1

公开(公告)日：2015-11-26

申请号：US14646434

申请日：2013-10-17

Applicant: AXENS

Inventor： Alain DUNET ,  Isabelle PREVOST ,  Thierry LEFLOUR

IPC: B01D3/14

CPC classification number: B01D3/146 ,  B01D1/28 ,  B01D1/2856 ,  B01D3/007 ,  C10G25/00 ,  C10G45/58 ,  Y02P70/34

Abstract: The present invention relates to a method for recovering heat available at low temperature in a process and its use in order to reduce the energy consumption of the said process. Application of the method to an aromatics complex in which the low-temperature heat is recovered at the head of distillation columns in the form of low-pressure steam and is reused to reboil other distillation columns in which the operating pressure has possibly been lowered.

Abstract translation: 本发明涉及一种用于回收在低温下可用的热量的方法及其用途，以便降低所述方法的能量消耗。 将该方法应用于芳族化合物，其中在低压蒸汽形式的蒸馏塔头处回收低温热量，并重新使用其中操作压力可能降低的其它蒸馏塔。

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.

公开(公告)号：US20190338202A1

公开(公告)日：2019-11-07

申请号：US16402300

申请日：2019-05-03

Applicant: Axens

Inventor： Jérôme PIGOURIER ,  Isabelle PREVOST

IPC: C10G61/08 ,  C07C7/00 ,  C07C7/04 ,  C07C7/12 ,  C07C6/12 ,  C07C5/27 ,  B01J19/24 ,  B01D3/14 ,  B01D3/32

Abstract: The present invention relates to a process and to a device for the separation of a feedstock comprising benzene, toluene and C8+ compounds, in which: a toluene column (C10) is fed directly with a C7+ cut resulting from the bottom of a stabilization column (C11) positioned downstream of a transalkylation unit (P4); a C7− cut is withdrawn at the top of the toluene column (C10) and a C8+ cut is withdrawn at the bottom; a benzene column (C9) is fed with the C7− cut resulting from the toluene column (C10); an essentially aromatic cut resulting from an aromatics extraction unit (P1) is injected into the toluene column (C10) separately above the feeding of the C7+ cut or into the benzene column (C9).

公开(公告)号：US20170058203A1

公开(公告)日：2017-03-02

申请号：US15307405

申请日：2015-04-20

Applicant: AXENS

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

IPC: C10G7/00 ,  B01D3/14 ,  B01D3/32 ,  B01D3/00 ,  C10G57/00 ,  C10L1/06

CPC classification number: C10G7/00 ,  B01D3/007 ,  B01D3/009 ,  B01D3/143 ,  B01D3/322 ,  C10G45/58 ,  C10G57/00 ,  C10G2300/104 ,  C10G2300/1044 ,  C10G2400/02 ,  C10L1/06 ,  C10L3/12 ,  C10L2290/543

Abstract: 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.

Abstract translation: 本发明描述了一种用于形成高辛烷值汽油的轻石脑油的异构化方法，所述方法使用去异戊烷剂和去异己酸酯，其以如下方式热集成，以减少所用的高温公用事业的消耗 正在进行中。

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。