Ifp Energies Nouvelles

Total Raffinage Marketing

Total Research & Technology Feluy

Total Raffinage France

Bertrand Guichard

Delphine Minoux

Malika Boualleg

Laurent Simon

Valentina De Grandi

Jean-Pierre Dath

Florent Guillou

Elodie Devers

Karin Marchand

P-Louis Carrette

Sylvie Lopez

Fabrice Diehl

Damien Delcroix

Hugues Dulot

Audrey Bonduelle

Denis Guillaume

Mathieu Digne

Antoine Hugon

Jean Pierre Dath

Michael Rebeilleau

Gregory Lapisardi

Grégory Lapisardi

Hughes Dulot

Jean -Pierre Dath

A catalyst which comprises an amorphous support based on alumina, a C1-C4 dialkyl succinate, citric acid and optionally acetic acid, phosphorus and a hydrodehydrogenating function comprising at least one element from group VIII and at least one element from group VIB; the most intense bands comprised in the Raman spectrum of the catalyst are characteristic of Keggin heteropolyanions (974 and/or 990 cm), C1-C4 dialkyl succinate and citric acid (in particular 785 and 956 cm). Also a process for preparing said catalyst in which a catalytic precursor in the dried, calcined or regenerated state containing the elements of the hydrodehydrogenating function, and optionally phosphorus, is impregnated with an impregnation solution comprising at least one C1-C4 dialkyl succinate, citric acid and optionally at least one compound of phosphorus and optionally acetic acid, and is then dried. Further, the use of said catalyst in any hydrotreatment process.

Catalyst for use in hydrotreatment, comprising metals from groups VIII and VIB, and preparation with citric acid and C1-C4 dialkyl succinate

The invention relates to a process for adding an organic compound to a porous solid wherein the porous solid and the organic compound in the liquid state are brought together simultaneously, without physical contact between the solid and the organic compound in the liquid state, at a temperature below the boiling point of the organic compound and under pressure and time conditions such that a fraction of said organic compound is transferred gaseously to the porous solid.

Method for adding an organic compound to a porous solid in the gaseous phase

A process for the preparation of a catalyst from a catalytic precursor comprising a support based on alumina and/or silica-alumina and/or zeolite and comprising at least one element of group VIB and optionally at least one element of group VIII, by impregnation of said precursor with a solution of a C1-C4 dialkyl succinate. An impregnation step for impregnation of said precursor which is dried, calcined or regenerated, with at least one solution containing at least one carboxylic acid other than acetic acid, then maturing and drying at a temperature less than or equal to 200&#xb0; C., optionally a heat treatment at a temperature lower than 350&#xb0; C., followed by an impregnation step with a solution containing at least one C1-C4 dialkyl succinate followed by maturing and drying at a temperature less than 200&#xb0; C. without subsequent calcination step. The catalyst is used in hydrotreatment and/or hydroconversion.

Process for the preparation of a catalyst which can be used in hydrotreatment and hydroconversion

A Fischer-Tropsch process for synthesizing hydrocarbons, by bringing a catalyst comprising a support and an active phase comprising a Group VIII metal into contact with a feedstock comprising synthesis gas, said catalyst being prepared according to the following steps:

Fischer-Tropsch synthesis process comprising a catalyst prepared by addition of an organic compound in gas phase

There is described a hydroprocessing process of at least one gas oil cut having a weighted mean temperature (TMP) between 240&#xb0; C. and 350&#xb0; C. using a catalyst comprising at least one metal of the group VIB and/or at least one metal of the group VIII of the periodic classification and a support comprising an amorphous mesoporous alumina having a connectivity (Z) greater than 2.7, the hydroprocessing process operating at a temperature between 250&#xb0; C. and 400&#xb0; C., at a total pressure between 2 MPa and 10 MPa with a ratio of hydrogen volume to volume of hydrocarbon-containing feedstock between 100 and 800 litres per litre and at an Hourly Volume Rate (HVR) which is defined by the ratio of the volume flow rate of liquid hydrocarbon-containing feedstock to volume of catalyst fed into the reactor between 1 and 10 h.

Method for the hydrotreatment of diesel cuts using a catalyst made from an amorphous mesoporous alumina having high connectivity

The invention relates to the preparation of a catalyst containing:

Mesoporous catalyst for hydroconversion of residues and method for preparing the latter

Process of preparing hydroconversion catalyst comprising:

Mesoporous and macroporous catalyst for hydroconversion of residues and preparation method

Preparation of a catalyst having at least one metal from group VIII, at least one metal from group VIB and at least one support; in succession:

Process for hydrotreating a hydrocarbon cut with a boiling point of more than 250&#xb0; C. in the presence of a sulphide catalyst prepared using a cyclic oligosaccharide

A catalyst usable in hydrotreatment processes: an alumina-based amorphous support, phosphorus, a C1-C4 dialkyl succinate, acetic acid and a hydro-dehydrogenizing function of at least one group VIII element and at least one group VIB element, preferably made up of cobalt and molybdenum, a catalyst whose Raman spectrum comprises the most intense bands characteristic of the Keggin heteropolyanions (974 and/or 990 cm), C1-C4 dialkyl succinate and acetic acid (896 cm). Preferably, the dialkyl succinate concerned is dimethyl succinate and its main band is at 853 cm.

Catalyst that can be used in hydrotreatment, comprising metals of groups VIII and VIB, and preparation with acetic acid and dialkyl succinate C1-C4

The invention concerns a catalyst containing a support comprising at least one binder and at least one zeolite having at least one series of channels the opening of which is defined by a ring containing 12 oxygen atoms, said catalyst comprising phosphorus, at least one C1-C4 dialkyl succinate, acetic acid and a hydrodehydrogenating function comprising at least one element from group VI B and at least one element from group VIII, the Raman spectrum of the catalyst comprising bands at 990 and/or 974 cm-1, characteristic of at least one Keggin heteropolyanion, the characteristic bands of said succinate and the characteristic principal band of acetic acid at 896 cm-1. The invention also concerns the process for preparing the catalyst and its use in hydroconversion.

Catalyst for use in hydroconversion, comprising at least one zeolite and metals from groups VIII and VIB, and preparation of the catalyst

The invention describes a catalyst comprising at least one metal from group VIB, at least two metals from group VIII termed the major promoter VIII-1 and co-promoters VIII-i, where i is in the range 2 to 5, and at least one support constituted by a porous refractory oxide, in which the elements from group VIII are present in proportions defined by the atomic ratio [VIII-1/(VIII-1+ . . . +VIII-i)], said ratio being in the range 0.5 to 0.85, as well as a process for the hydrotreatment of heavy hydrocarbon feeds, comprising at least one hydrodemetallization step and at least one hydrodesulphurization step, and employing a catalyst in accordance with the invention with an identical atomic ratio in each of the hydrodemetallization and hydrodesulphurization steps.

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Izeaux, France

Bertrand Guichard