Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Université Pierre Et Marie Curie

Anne-Claire Dubreuil

Malika Boualleg

Cecile Thomazeau

Vincent Coupard

Emily Maille

Emmanuelle Guillon

Agathe Martel

Denis Uzio

Antoine Daudin

Alexandre Jouve

Philibert Leflaive

Jean-Francois Joly

Jean-Marie Basset

Fabienne Le Peltier

Alexandre Pagot

Michel Thomas

Philippe Caullet

Lars Fischer

Renaud Revel

Joël Patarin

Jean-Pierre Candy

Gerhard Pirngruber

Bernadette Rebours

Filipe Manuel Marques Mota

Josselin Janvier

Jean Louis Paillaud

Nathalie Crozet

Layane Deghedi

Cécile Thomazeau

Carine Chollet

Eric Marceau

Faiza Bentaleb

Michel Che

Catalyst comprising nickel and copper, in a proportion of 1% to 50% by weight of nickel element relative to the total weight of the catalyst, in a proportion of 0.5% to 15% by weight of copper element relative to the total weight of the catalyst, and an alumina support, said catalyst being characterized in that:

Catalyst comprising an active nickel phase in the form of small particles and a nickel-copper alloy

Catalyst comprising a nickel-based active phase and an alumina support, characterized in that:

Catalyst comprising an active nickel phase distributed in a shell

Catalyst comprising an active nickel phase in the form of small particles distributed in a shell

Nickel and copper catalyst, and an alumina support:

Catalyst comprising an active nickel phase in the form of small particles distributed in a shell and a nickel-copper alloy

Catalyst comprising nickel and sulfur on an alumina support, said catalyst being characterized in that:

Catalyst comprising an active nickel sulfur phase distributed in a shell

The present invention relates to a hydrogenolysis process wherein a hydrocarbon-based feedstock comprising aromatic compounds having at least 8 carbon atoms is treated by means of a hydrogen feed and in the presence of a catalyst, in order to convert C2+ alkyl chains of said aromatic compounds into methyl groups and to produce a hydrogenolysis effluent enriched in methyl-substituted aromatic compounds, wherein the catalyst comprises a support, comprising at least one refractory oxide, and an active phase comprising nickel and molybdenum, wherein: the nickel content being between 0.1 and 25% by weight relative to the total weight of the catalyst; the molybdenum content being between 0.1 and 20% by weight relative to the total weight of the catalyst; and the catalyst comprising a molar ratio of molybdenum to nickel of between 0.2 and 0.9. The present invention also relates to said catalyst and to the process for preparing said catalyst.

Selective catalyst for hydrogenolysis of ethyl-aromatics by conserving methyl-aromatics

The present invention is based on the use of a two-step hydrocracking process for the production of naphtha, comprising a step of hydrogenation placed downstream of the second hydrocracking step, the hydrogenation step treating the effluent resulting from the second hydrocracking step in the presence of a specific hydrogenation catalyst. Furthermore, the hydrogenation step and the second hydrocracking step are performed under specific operating conditions and in particular under quite specific temperature conditions.

Two-stage hydrocracking process for producing naphtha, comprising a hydrogenation stage implemented downstream of the second hydrocracking stage

The present invention is based on the use of a two-step hydrocracking process comprising a step of hydrogenation placed upstream of the second hydrocracking step, the hydrogenation step treating the unconverted liquid fraction separated in the distillation step in the presence of a specific hydrogenation catalyst. Furthermore, the hydrogenation step and second hydrocracking step are carried out under specific operating conditions and in particular under very specific temperature conditions.

Two-stage hydrocracking process comprising a hydrogenation stage upstream of the second hydrocracking stage, for the production of middle distillates

Hydrogenation of at least one aromatic or polyaromatic compound contained in a hydrocarbon feedstock having a final boiling point below or equal to 650&#xb0; C., at a temperature of between 30 and 350&#xb0; C., at a pressure of between 0.1 and 20 MPa, at a hydrogen/(aromatic compounds to be hydrogenated) molar ratio between 0.1 and 10 and at an hourly space velocity HSV of between 0.05 and 50 h, in the presence of a catalyst comprising an alumina support and an active phase comprising nickel, prepared by

Method for the hydrogenation of aromatics using a nickel-based catalyst

Process for hydrogenating at least one aromatic or polyaromatic compound contained in a hydrocarbon feedstock having a final boiling point of less than or equal to 650&#xb0; C., said process being performed in the gas phase or in the liquid phase at a temperature of between 30 and 350&#xb0; C., at a pressure of between 0.1 and 20 MPa, at a hydrogen/(aromatic compounds to be hydrogenated) mole ratio of between 0.1 and 10 and at an hourly space velocity (HSV) of between 0.05 and 50 h, in the presence of a catalyst comprising an active phase comprising nickel, said active phase not comprising any group VIB metal, and a support comprising an amorphous mesoporous alumina having a connectivity (Z) of greater than 2.7, the connectivity being determined from the nitrogen adsorption/desorption isotherms.

Method for hydrogenating aromatics using a catalyst obtained by impregnation comprising a specific support

The invention describes a process for the capture of organometallic impurities in a hydrocarbon feedstock of gasoline type containing olefins and sulfur, in which a capture body is brought into contact with the feedstock to be treated and a stream of hydrogen, said capture body comprises an active phase based on nickel oxide particles with a size of less than or equal to 15 nm, said active phase not comprising other metal elements of Group VIb or Group VIII, which are deposited on a porous support chosen from the group consisting of aluminas, silica, silicas/aluminas, or also titanium or magnesium oxides, used alone or as a mixture with alumina or silica/alumina.

Method for removing arsenic using a removal mass made of nickel oxide particles

The invention relates to a selective hydrogenolysis method for treating a feed rich in aromatic compounds having more than 8 carbon atoms, comprising transforming at least one alkyl group with at least two carbon atoms (ethyl, propyl, butyl, isopropyl, etc.) attached to a benzene ring into at least one methyl group. The invention also relates to the integration of the hydrogenolysis unit into an aromatic complex.

Method of hydrogenolysis for improved production of paraxylene

The present invention is based on the use of a two-step hydrocracking process for the production of naphtha, comprising a step of hydrogenation placed upstream of the second hydrocracking step, the hydrogenation step treating the unconverted liquid fraction separated in the distillation step in the presence of a specific hydrogenation catalyst. Furthermore, the hydrogenation step and a second hydrocracking step are carried out under specific operating conditions and in particular under temperature conditions that are very specific with respect to one another.

Two-step hydrocracking process for the production of naphtha comprising a hydrogenation step carried out upstream of the second hydrocracking step

A process for the selective hydrogenation of polyunsaturated compounds containing at least 2 carbon atoms per molecule, contained in a hydrocarbon feedstock having a final boiling point below or equal to 300&#xb0; C. in the presence of a catalyst comprising an alumina support and an active phase comprising nickel, said active phase not comprising a metal from Group VIB, said catalyst being prepared by a process comprising at least:

Selective hydrogenation method using a nickel-based catalyst produced using an additive comprising a carboxylic acid function

The invention relates to a supported catalyst that comprises an oxide substrate that is for the most part calcined aluminum and an active phase that comprises nickel, with the nickel content being between 5 and 65% by weight of said element in relation to the total mass of the catalyst, with said active phase not comprising a metal from group VIB, the nickel particles having a diameter that is less than or equal to 20 nm, said catalyst having a median mesopore diameter of between 8 nm and 25 nm, a median macropore diameter of greater than 200 nm, a mesopore volume that is measured by mercury porosimetry that is greater than or equal to 0.30 mL/g, and a total pore volume that is measured by mercury porosimetry that is greater than or equal to 0.34 mL/g. The invention also relates to the method for preparation of said catalyst and its use in a hydrogenation method.

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Lyons, France

Anne-Claire Dubreuil