公开(公告)号：US20210009907A1

公开(公告)日：2021-01-14

申请号：US16924765

申请日：2020-07-09

Applicant: AXENS

Inventor： Jacinthe FRECON ,  Delphine LE BARS ,  Hong Duc NGUYEN

IPC: C10G69/06 ,  C10G45/16 ,  C10G47/02 ,  C10G9/36 ,  C10G21/00

Abstract: The invention relates to a process for converting a feedstock comprising pyrolysis oil and a heavy hydrocarbon-based feedstock, with: a) a step of hydroconversion in a reactor; b) a step of separating the liquid effluent obtained from step a) into a naphtha fraction, a gas oil fraction, a vacuum gas oil fraction and an unconverted residue fraction; c) a step of hydrocracking of the vacuum gas oil fraction; d) a step of fractionating the hydrocracked liquid effluent obtained from step c) into a naphtha fraction, a gas oil fraction and a vacuum gas oil fraction; e) a step of steam cracking of a portion of the naphtha fraction obtained from step d); f) a step of fractionating at least a portion of the steam-cracked effluent obtained from step e); g) a step in which the pyrolysis oil fraction obtained from step f) is sent into step a).

公开(公告)号：US20190194557A1

公开(公告)日：2019-06-27

申请号：US16228967

申请日：2018-12-21

Applicant: AXENS

Inventor： Marion GUILLEVIC ,  Virginie GOBERT ,  Jacinthe FRECON ,  Odile LAJEUNESSE

IPC: C10G65/12 ,  F28D7/02

Abstract: The present invention relates to a device and a process for hydroconversion or hydrotreatment of a hydrocarbon feedstock, comprising in particular a single coil-wound heat exchanger (S-1), said coil-wound exchanger being a single-pass heat exchanger formed by a vertical chamber in which one or more bundles of tubes are helically wound around a central core, as numerous superposed layers, for: preheating a hydrocarbon feedstock/hydrogen stream mixture to a reactor inlet furnace (F-1) of a hydrotreatment or hydroconversion reaction section (R-1), and cooling the reaction effluent from the hydrotreatment or hydroconversion reaction section (R-1). The present invention also relates to a use of a coil-wound heat exchanger (S-1) in a process for hydroconversion or hydrotreatment of a hydrocarbon feedstock.

公开(公告)号：US20170342331A1

公开(公告)日：2017-11-30

申请号：US15538234

申请日：2015-12-17

Applicant: AXENS

Inventor： Thibault SAUGE ,  Roberto GONZALEZ LLAMAZARES ,  Jerome BONNARDOT ,  Jacinthe FRECON

IPC: C10G47/00 ,  C07C5/10 ,  C07C15/56 ,  C10G7/00

CPC classification number: C10G47/00 ,  C07C5/10 ,  C07C15/56 ,  C10G7/00

Abstract: The invention concerns a process and a facility for reducing the concentration of heavy polycyclic aromatic compounds (HPNA) in the recycle loop of hydrocracking units, which comprises a fractionation column.In accordance with this process, a stream is withdrawn from the fractionation column at the level of at least one plate located between the supply plate and the plate for withdrawing the heaviest distillate fraction; the stream is stripped in an external stripping step by a stripping gas, in the presence of a portion of the residue. The separated gaseous effluent is recycled to the column, advantageously as a stripping gas, and the liquid fraction is recycled to the hydrocracking step; a residue is purged in the stripping step.

公开(公告)号：US20170349844A1

公开(公告)日：2017-12-07

申请号：US15538967

申请日：2015-12-17

Applicant: AXENS

Inventor： Thibault SAUGE ,  Roberto GONZALEZ LLAMAZARES ,  Jerome BONNARDOT ,  Jacinthe FRECON

IPC: C10G67/02

Abstract: The invention concerns a process and a facility for reducing the concentration of heavy polycyclic aromatic compounds (HPNA) in the recycle loop of hydrocracking units, which comprises a fractionation column.In accordance with this process, a portion of the stream present at the level of at least one plate (I) which is the supply plate or a plate located between the supply plate and said residue evacuation point, or if stripping gas is injected, between the supply plate and said stripping gas injection point, is withdrawn from the fractionation column.A portion, preferably all, of said withdrawn stream is recycled to the hydrocracking step directly or after optional separation of the gases. The residue is purged in its entirety.In a preferred embodiment, a portion of the stream present at the level of at least one plate (II) located between the supply plate and the plate for withdrawing the heaviest distillate fraction is also withdrawn from the column. After stripping, all or a portion of the gas is recycled to the column and the liquid is sent for hydrocracking.

公开(公告)号：US20170349840A1

公开(公告)日：2017-12-07

申请号：US15539006

申请日：2015-12-17

Applicant: AXENS

Inventor： Thibault SAUGE ,  Roberto GONZALEZ LLAMAZARES ,  Jerome BONNARDOT ,  Jacinthe FRECON

IPC: C10G47/00 ,  B01D3/14 ,  C07C5/10 ,  C10G7/00

CPC classification number: C10G47/00 ,  B01D3/14 ,  C07C5/10 ,  C10G7/00

Abstract: The invention concerns a process and a facility for reducing the concentration of heavy polycyclic aromatic compounds (HPNA) in the recycle loop of hydrocracking units, which comprises a fractionation column.In accordance with this process, a portion of the stream present at the level of at least one plate located between the plate for supplying hydrocracked effluent and the plate for withdrawing the distillate fraction which is the heaviest is withdrawn from the fractionation column and at least a portion of said withdrawn stream is recycled to the column directly or after optional liquid separation, and optionally a portion of said withdrawn stream is recycled to the hydrocracking step directly or after optional gas separation.

公开(公告)号：US20170183584A1

公开(公告)日：2017-06-29

申请号：US15388312

申请日：2016-12-22

Applicant: AXENS

Inventor： Odile LAJEUNESSE ,  Nicolas LAMBERT ,  Jacinthe FRECON ,  Jerome PIGOURIER

IPC: C10G69/04

Abstract: The invention concerns an installation and a process which jointly implement compression of the acid gases from the hydroconversion or hydrotreatment unit and that of the gaseous effluents from the catalytic cracking unit.