公开(公告)号：US20170101590A1

公开(公告)日：2017-04-13

申请号：US14877471

申请日：2015-10-07

Applicant: IFP Energies nouvelles ,  Axens

Inventor： Heloise DREUX ,  Romina DIGNE ,  Frederic FEUGNET ,  Jean-Michel BESNAULT ,  Geoffrey DUBIN

IPC: C10G45/02 ,  C10G7/00

CPC classification number: C10G45/02 ,  B01D3/007 ,  C10G7/00 ,  C10G7/12 ,  C10G9/00 ,  C10G11/00 ,  C10G65/04 ,  C10G2300/1044

Abstract: The present invention relates to a process for desulfurizing a cracked naphtha containing organic sulfur compounds comprising the following steps: a) feeding the cracked naphtha to a distillation column comprising a bottom reboiler; b) fractionating said cracked naphtha into a light naphtha fraction and a heavy naphtha fraction which is removed as bottoms from the distillation column; c) feeding the heavy naphtha fraction and hydrogen to a hydrodesulfurization unit containing a hydrodesulfurization catalyst to produce a desulfurized heavy naphtha effluent. The process further comprises a step of providing heat to the distillation column by an intermediate reboiler powered with a heat source having a temperature lower than that one of the bottom reboiler.

公开(公告)号：US20200325404A1

公开(公告)日：2020-10-15

申请号：US16845118

申请日：2020-04-10

Applicant: AXENS

Inventor： Geoffrey DUBIN ,  Annick PUCCI ,  Boris HESSE

IPC: C10G45/08 ,  C10G65/04 ,  C10G45/38 ,  B01J8/04

Abstract: The invention is a naphtha hydrotreating process, using at least three catalysts, comprising: a first step a) in the presence of the first catalyst comprising a support; a second step b) in the presence of the second catalyst comprising a support and an active phase, said active phase containing a Group 9 or 10 metal and a Group 6 metal; a third step c) in the presence of the third catalyst comprising a support and an active phase, said active phase containing a Group 6 metal; the content of Group 6 metal of the third catalyst is less than the content of Group 6 metal of said second catalyst; the ratio of the “loaded specific surface area” of said first catalyst to that of said second catalyst is greater than or equal to 1.20; the ratio of the “loaded specific surface area” of said third catalyst to that of said second catalyst is greater than 1.07.