METHOD FOR PRODUCING GASOLINE WITH LOW SULPHUR AND MERCAPTAN CONTENT

    公开(公告)号:US20220267686A1

    公开(公告)日:2022-08-25

    申请号:US17629087

    申请日:2020-07-06

    IPC分类号: C10G65/04 C10L1/06 B01D3/14

    摘要: A process for the treatment of a gasoline containing sulfur compounds and olefins includes the following stages: a) hydrodesulfurization in the presence of a catalyst having an oxide support and an active phase having a metal from group VIB and a metal from group VIII, b) hydrodesulfurization at a higher temperature than that of stage a) and in the presence of a catalyst having an oxide support and an active phase with at least one metal from group VIII, c) separation of H2S formed, d) hydrodesulfurization at a low hydrogen/feedstock ratio and in the presence of a hydrodesulfurization catalyst having an oxide support and an active phase having a metal from group VIB and a metal from group VIII or an active phase with at least one metal from group VIII, and e) further separation of H2S formed.

    PROCESS FOR THE TREATMENT OF A GASOLINE BY SEPARATION INTO THREE CUTS

    公开(公告)号:US20180086989A1

    公开(公告)日:2018-03-29

    申请号:US15715711

    申请日:2017-09-26

    IPC分类号: C10G45/08 C10L1/00

    摘要: The present invention concerns a process for the desulphurization of a gasoline cut containing sulphur-containing compounds, olefins and diolefins, comprising at least the following steps: a) fractionating the gasoline in order to recover a light gasoline cut LCN and a first heavy gasoline cut HCN; b) carrying out a first step for desulphurization of the first heavy gasoline cut HCN; c) partially condensing the first desulphurization effluent obtained from step b) in a manner such as to produce a gaseous phase essentially constituted by hydrogen and H2S and a liquid hydrocarbon phase HCN comprising dissolved H2S; d) separating the liquid hydrocarbon phase HCN into an intermediate gasoline cut MCN and a second heavy gasoline cut HHCN; e) carrying out a second step for desulphurization of the second heavy gasoline cut

    METHOD FOR TREATING A PYROLYSIS GASOLINE
    3.
    发明申请

    公开(公告)号:US20190264115A1

    公开(公告)日:2019-08-29

    申请号:US16336963

    申请日:2017-09-01

    发明人: Adrien GOMEZ

    IPC分类号: C10G67/02 B01D3/32 B01D3/00

    摘要: The present invention relates to a method for treating a pyrolysis gasoline C5+ containing monoolefinic, diolefinic and sulfur hydrocarbons, comprising at least, and in any order: a) a step of hydrotreating the pyrolysis gasoline or a hydrocarbon fraction C6+ originating from the pyrolysis gasoline, in the presence of hydrogen and at least one hydrotreatment catalyst at a temperature ranging between 220 and 380° C. so as to produce a hydrotreated effluent; b) a step of separating the pyrolysis gasoline or the hydrotreated effluent originating from step a) when said step is completed before step b), into a separation column for separating into a top hydrocarbon fraction C5− and a bottom hydrocarbon fraction C6+, said separation column comprising a reboiling section including two heat exchangers, at least one of the two exchangers being configured to perform a heat exchange with a portion of the bottom fraction that is recycled in the column via the reboiling section. According to the invention, one of the two heat exchangers of the reboiling section is supplied with at least one portion of the hydrotreated effluent so as to supply part of the heat required to operate the reboiling section.