公开(公告)号：US20250058249A1

公开(公告)日：2025-02-20

申请号：US18721473

申请日：2022-12-12

Applicant: IFP ENERGIES NOUVELLES

Inventor： Hélène LORCET ,  Frederic AUGIER ,  Jeremy GAZARIAN ,  Pierre-Olivier DREGER

IPC: B01D11/04

Abstract: Liquid-liquid extraction column (1) comprising points for feedstock injection (2), washing (3) and backwashing (4), two withdrawal points (5, 6), trays (Pi) located along the column and defining 2 to 30 zones each comprising at least two trays, the n zones comprising: at least one extraction zone Zi comprising the zones from Z1 to Zx, x being greater than or equal to 1, and at least one backwash zone comprising the zones from Zx+1 to Zn, n being greater than x; in which the trays of the same zone have the same number of holes per perforated tray; in which, when x>1, the number of holes per perforated tray of the zones Zi increases when i increases; and when x=1, said number of holes of the backwash zone is less than/greater than than that of the zone Z1.

公开(公告)号：US20250058248A1

公开(公告)日：2025-02-20

申请号：US18721419

申请日：2022-12-12

Applicant: IFP ENERGIES NOUVELLES

Inventor： Hélène LORCET ,  Frederic AUGIER ,  Jeremy GAZARIAN ,  Pierre-Olivier DREGER

IPC: B01D11/04 ,  B01D11/00 ,  B01J19/32

Abstract: Liquid-liquid extraction column (1) comprising injection points for feedstock (2), for washing (3) and for backwashing (4), two withdrawal points (5, 6), trays (Pi) located along the column and defining 2 to 30 zones each comprising at least two trays, the n zones comprising: at least one extraction zone Zi comprising the zones from Z1 to Zx, x being greater than or equal to 1, and at least one backwash zone comprising the zones from Zx+1 to Zn, n being greater than x; in which the trays of one and the same zone exhibit one and the same height H of inter-tray space (10); in which, when x>1, the height H of the zones Zi increases when i increases; and, when x=1, the height H of the at least one backwash zone is less than the height H of zone Z1.