公开(公告)号：US20200339894A1

公开(公告)日：2020-10-29

申请号：US16957078

申请日：2018-12-07

Applicant: IFP Energies nouvelles

Inventor： Joao MARQUES ,  Jan VERSTRAETE

IPC: C10G67/04 ,  C10G21/00 ,  C10G45/08 ,  C10G45/16

Abstract: The invention relates to a process for converting a heavy hydrocarbon feedstock containing a fraction of at least 50% with a boiling point of at least 300° C., and containing sulfur, Conradson carbon, metals, and nitrogen, comprising at least two successive hydroconversion steps, which may be separated by an intermediate separation step, and at least one step of deasphalting a heavy fraction of the effluent resulting from the hydroconversion, with recycling at least one portion of the deasphalted oil (DAO) during the hydroconversion, downstream of the first hydroconversion step. The DAO is either recycled at the outlet thereof from the deasphalter, or after having undergone a fractionation step that produces a heavy fraction of the DAO that then constitutes the portion of the DAO that is recycled. This process makes it possible to simultaneously improve the degree of conversion and the stability of the liquid effluents.

公开(公告)号：US20180362864A1

公开(公告)日：2018-12-20

申请号：US16006300

申请日：2018-06-12

Applicant: IFP Energies nouvelles

Inventor： Jan VERSTRAETE ,  Elodie TELLIER ,  Thomas PLENNEVAUX ,  Emmanuelle GUILLON ,  Anne Claire PIERRON

IPC: C10G67/02

Abstract: A process for hydrocracking hydrocarbon-containing VD feedstocks allowing the improved production of middle distillates: a) hydrocracking of feedstocks in hydrogen and at least one hydrocracking catalyst, b) gas/liquid separation of effluent originating from a) producing a liquid effluent and a gaseous effluent with hydrogen, c) comprising the gaseous effluent before recycling into hydrocracking a), d) fractionation of liquid effluent into at least one effluent of converted hydrocarbon-containing products having boiling points less than 340° C. and an unconverted liquid fraction having a boiling point greater than 340° C., e) hydrocracking unconverted liquid fraction from d), in hydrogen and a hydrocracking catalyst, f) hydrotreating effluent from e) in a mixture with a hydrocarbon-containing gas-oil liquid feedstock having at least 95% by weight of compounds boiling at a boiling point between 150 and 400° C., hydrotreating f) operating in hydrogen and with at least one hydrotreating catalyst.