公开(公告)号：US10150717B2

公开(公告)日：2018-12-11

申请号：US15918222

申请日：2018-03-12

Applicant: IFP Energies Nouvelles

Inventor： Alexandre Vonner ,  Damien Leinekugel Le Cocq ,  Catherine Laroche ,  Pascal Etienne

IPC: C07C7/13 ,  B01D15/18

Abstract: The present invention describes a process for the simulated moving bed separation of xylenes, in which the operating conditions are optimized by means of a specific relationship between the cycle time and the flow rate of the desorbant.

公开(公告)号：US10214467B2

公开(公告)日：2019-02-26

申请号：US15982649

申请日：2018-05-17

Applicant: IFP Energies nouvelles

Inventor： Alexandre Vonner ,  Damien Leinekugel Le Cocq ,  Catherine Laroche ,  Pascal Etienne

IPC: C07C7/13 ,  B01D15/18

Abstract: The present invention describes a process for the simulated moving bed separation of xylenes which can be used for the treatment of paraxylene-rich feeds (more than 25% by weight of paraxylene), in which the operating conditions are optimized by means of a specific relationship between the cycle time and the desorbant flow rate.

公开(公告)号：US09447001B2

公开(公告)日：2016-09-20

申请号：US14095404

申请日：2013-12-03

Applicant: IFP Energies nouvelles

Inventor： Pascal Etienne ,  Philibert Leflaive ,  Damien Leinekugel Le Cocq ,  Catherine Laroche

IPC: C07C7/12 ,  C07C7/13 ,  B01D15/18 ,  B01J20/18 ,  B01J20/28

CPC classification number: C07C7/13 ,  B01D15/1828 ,  B01D15/1842 ,  B01J20/186 ,  B01J20/28011 ,  B01J20/2803 ,  C07C15/08

Abstract: This invention describes a process for separation of xylenes for the purpose of the production of high-purity metaxylene, a simulated countercurrent process using at least one adsorber with a limited cumulative total level (Hcu) of adsorbent at a surface velocity (Vsl) that is less than 2 cm/s.

Abstract translation: 本发明描述了用于生产高纯度间二甲苯的二甲苯的分离方法，使用至少一种具有吸附剂的累积总量（Hcu）的吸附剂的表面速度（Vsl）为至少一种吸附剂的模拟逆流方法 小于2厘米/秒。

公开(公告)号：US10793787B2

公开(公告)日：2020-10-06

申请号：US16513106

申请日：2019-07-16

Applicant: IFP Energies Nouvelles

Inventor： Jean-Philippe Heraud ,  Pascal Etienne

IPC: C10G55/06 ,  B01J29/40 ,  C10G47/16 ,  C10G49/22 ,  C10G69/10

Abstract: Process for the production of olefins and of middle distillates from a paraffinic feedstock, in which: a) a paraffinic feedstock resulting from a Fischer-Tropsch unit is recovered, the said feedstock containing a light fraction and a heavy fraction; b) the light fraction is sent to a catalytic cracking unit; c) the effluent resulting from the catalytic cracking unit is separated in a fractionation unit in order to obtain a fraction of light hydrocarbons, an olefinic fraction and a residual liquid fraction; d) the heavy fraction is sent to a hydrocracking/hydroisomerization unit; e) the effluent resulting from the hydrocracking/hydroisomerization unit is separated in a fractionation unit in order to obtain a middle distillates fraction, a naphtha cut having a maximum boiling point of less than 180° C. and an unconverted heavy fraction; f) a part of the naphtha cut resulting from the fractionation unit is sent to the catalytic cracking unit.

公开(公告)号：US09452370B2

公开(公告)日：2016-09-27

申请号：US14093599

申请日：2013-12-02

Applicant: IFP ENERGIES NOUVELLES

Inventor： Pascal Etienne ,  Philibert Leflaive ,  Damien Leinekugel Le Cocq ,  Catherine Laroche

IPC: C07C7/12 ,  C07C7/13 ,  B01D15/18 ,  B01J20/18 ,  B01J20/28

CPC classification number: B01D15/1828 ,  B01D15/1842 ,  B01J20/186 ,  B01J20/28011 ,  B01J20/2803 ,  C07C7/13 ,  C07C15/08

Abstract: The present invention describes a process for the separation of xylenes in simulated counter-current utilising at least one adsorber with a limited cumulated total height (Hcu) of adsorbent and a superficial velocity (Vsl) of less than 2 cm/s.

Abstract translation: 本发明描述了利用吸附剂的有限累积总高度（Hcu）和小于2cm / s的表观速度（Vsl）的至少一个吸附器来分离模拟逆流中的二甲苯的方法。