公开(公告)号：US20180148658A1

公开(公告)日：2018-05-31

申请号：US15566611

申请日：2016-02-17

Applicant: IFP Energies nouvelles

Inventor： Philibert LEFLAIVE ,  Clementina LOPEZ GARCIA ,  Julien GORNAY ,  Annick PUCCI ,  Diamantis ASTERIS ,  Marie GODARD-PITHON

IPC: C10G67/02 ,  B01J23/883 ,  B01J37/20 ,  B01J35/10

Abstract: A process reducing sulfides R1-S—R2, with R1 and R2 methyl or ethyl, in a gasoline containing diolefins, mono-olefins and sulphur: A) contacting gasoline in mixture with a light gasoline cut recycled from C) and hydrogen in a reactor with catalyst A at least one VIb metal and at least one non noble group VIII metal on a support, producing effluent having diolefins and sulfides R1-S—R2, with R1 and R2 methyl or ethyl radicals lower than that that of the starting gasoline; B) the effluent from A) is sent into a fractionating column separating at the top a light gasoline cut containing hydrocarbons having less than 6 carbon atoms per molecule and at the bottom a heavy gasoline cut containing hydrocarbons having 6 and more than 6 carbon atoms per molecule; C) recycling a part of the light gasoline from B) to the reactor of A) with a recycle ratio 0.1 to 0.7.

公开(公告)号：US20180023010A1

公开(公告)日：2018-01-25

申请号：US15537793

申请日：2015-12-04

Applicant: IFP Energies nouvelles

Inventor： Philibert LEFLAIVE ,  Clementina GARCIA-LOPEZ ,  Julien GORNAY ,  Annick PUCCI ,  Diamantis ASTERIS ,  Marie GODARD-PITHON

IPC: C10G65/06 ,  B01J35/10 ,  B01J23/883

CPC classification number: C10G65/06 ,  B01J23/85 ,  B01J23/883 ,  B01J35/1019 ,  B01J37/0201 ,  B01J37/14 ,  B01J37/20 ,  C10G45/08 ,  C10G45/38 ,  C10G2300/104 ,  C10G2300/1044 ,  C10G2300/202 ,  C10G2300/4087 ,  C10G2400/02 ,  C10L1/06

Abstract: This invention relates to a method for reducing the content of sulfide-type compounds of formula R1-S—R2, with R1 and R2 selected from among the methyl (CH3) and ethyl (C2H5) radicals, of a gasoline that contains diolefins, monoolefins, and sulfur. The method implements a first catalytic step for selective hydrogenation of diolefins at a temperature of between 60° C. and 150° C. and then a step for heating the effluent that is obtained from the first step with a temperature difference ΔT of between 10° C. and 100° C. and a second catalytic step on the effluent that is heated in such a way as to produce an effluent that has a content of sulfide-type compounds of formula R1-S—R2, with R1 and R2 selected from among the methyl (CH3) and ethyl (C2H5) radicals, lower than that of the starting gasoline.