公开(公告)号：US20190232193A1

公开(公告)日：2019-08-01

申请号：US16342269

申请日：2017-10-13

Applicant: IFP Energies Nouvelles ,  Compagnie Generale des Etablissements Michelin

Inventor： Celine HOGNON ,  Sophie DROZDZ ,  Marc JACQUIN ,  Damien LEINEKUGEL LE COCQ ,  Frederic AUGIER

IPC: B01D11/04 ,  C07C45/80 ,  C07C29/88

CPC classification number: B01D11/0426 ,  B01D11/04 ,  B01D11/0488 ,  B01D11/0492 ,  B01D2011/002 ,  C07C29/88 ,  C07C45/80 ,  C07C31/08 ,  C07C47/06

Abstract: The invention relates to a process for purifying an aqueous solution comprising ethanol, acetaldehyde and diethylacetal comprising: a step A) of countercurrent liquid-liquid extraction comprising an extraction section supplied at the top by said aqueous solution as a mixture with at least one fraction of the water/ethanol/acetaldehyde raffinate resulting from the back extraction step B), and at the bottom by an extraction solvent, and producing an extract at the top and a purified feedstock at the bottom; —a step B) of countercurrent liquid-liquid back extraction comprising a back extraction section supplied at the top by an acidic aqueous solution, the pH of which is between 0.5 and 5, and at the bottom by the extract resulting from step A), and producing an extract at the top and a water/ethanol/acetaldehyde raffinate at the bottom.

公开(公告)号：US20170312650A1

公开(公告)日：2017-11-02

申请号：US15581237

申请日：2017-04-28

Applicant: IFP Energies nouvelles

Inventor： Frederic AUGIER ,  Frederic BAZER-BACHI ,  Vincent COUPARD ,  Damien LEINEKUGEL LE COCQ

IPC: B01D3/00

CPC classification number: B01D3/009 ,  B01D3/008

Abstract: The present invention describes a device for supplying the catalytic zone of a reactive distillation column using a liquid stream as the reaction stream, the flow of liquid in the reactive zone being of the upflow type and gas not encountering the liquid in the reactive zone.

公开(公告)号：US20170210683A1

公开(公告)日：2017-07-27

申请号：US15326887

申请日：2015-06-10

Applicant: IFP Energies nouvelles

Inventor： Heloise DREUX ,  Philibert LEFLAIVE ,  Damien LEINEKUGEL LE COCQ

IPC: C07C5/27

CPC classification number: C07C5/2737 ,  B01D15/1821 ,  C07C5/2775 ,  C07C7/005 ,  C07C7/04 ,  C07C7/13 ,  C07C2529/40 ,  C07C2529/74 ,  C07C15/08

Abstract: The present invention describes a process for the production of high-purity paraxylene from a xylenes cut containing xylenes and ethylbenzene, a process using two simulated moving bed separation units and two isomerization units.

公开(公告)号：US20170210682A1

公开(公告)日：2017-07-27

申请号：US15326836

申请日：2015-06-10

Applicant: IFP Energies nouvelles

Inventor： Heloise DREUX ,  Philibert LEFLAIVE ,  Damien LEINEKUGEL LE COCQ

IPC: C07C5/27

CPC classification number: C07C5/2737 ,  C07C5/2775 ,  C07C7/005 ,  C07C7/04 ,  C07C7/13 ,  C07C2529/40 ,  C07C2529/74 ,  C07C15/08

Abstract: The present invention describes a process for the production of high-purity paraxylene from a xylenes cut capable of containing ethylbenzene and C9 compounds, said process using two simulated moving bed separation units operating in series and two isomerization units.

公开(公告)号：US20170204024A1

公开(公告)日：2017-07-20

申请号：US15326699

申请日：2015-06-10

Applicant: IFP Energies Nouvelles

Inventor： Heloise DREUX ,  Philibert LEFLAIVE ,  Damien LEINEKUGEL LE COCQ

IPC: C07C5/27

Abstract: The present invention describes a process for the production of high-purity paraxylene based on a xylene cut, a process using one simulated mobile bed separation unit and two isomerization units, one in gas phase and the other in liquid phase.

公开(公告)号：US20140142342A1

公开(公告)日：2014-05-22

申请号：US14080832

申请日：2013-11-15

Applicant: IFP Energies nouvelles

Inventor： Frederic AUGIER ,  Damien LEINEKUGEL LE COCQ ,  Romina DIGNE ,  Arnaud BAUDOT

IPC: C07C319/30

CPC classification number: B01D11/043 ,  B01D3/20 ,  B01D3/22 ,  B01D11/00 ,  C07C319/30 ,  C10G21/00

Abstract: The present invention describes a liquid-liquid extraction column with perforated plates and downpipes, having a majority of so-called “open” plates and a minority of so-called “closed” plates, the two types of plates differing in the degree of perforation. Application of the said column to the treatment of liquid-liquid systems with time-variable coalescence.

Abstract translation: 本发明描述了具有多孔板和降管的液 - 液萃取柱，其具有大部分所谓的“开”板和少量所谓的“封闭”板，这两种类型的板的穿孔程度不同 。 所述柱应用于具有时变聚结的液 - 液体系的处理。