Institut Francais Du Pe'trole

Societe Francaise Des Produits Pour Catalyse 'Procatalyse'

Ifp Energies Nouvelles

Europeenne De Retraitement De Catalyseurs Eurecat

Ste Francaise Des Products Pour Catalyse Pro-Catalyse Chez Institut

Ste Francaise Des Produits Pour Catalyse Pro-Catalyse Chez Institut

Herve Toulhoat

Yves Jacquin

Jean-Claude Plumail

Alain Billon

Marc Mercier

Pascal Raybaud

Jean-Pierre Peries

Thierry Dupin

Slavik Kasztelan

Maurice Born

Guy Parc

Georges Berrebi

Alain Quignard

Anne Sinquin

Michel Roussel

Philippe Varin

Regis Paulus

Anne Favre

Theodorus De Bruin

Julio Jover Azpurua

The present invention relates to a method of oligomerizing olefins M selectively to oligomers M, involving a catalytic system comprising at least one organometallic complex with a metal of groups 4 to 10 of the periodic table of molecular volume Vm, and a micro- or mesoporous solid whose average micropore diameter &#x3a6; is greater than or equal to &#x3a6;defined as a function of the molecular volume (Vm+nVm), where n is the number of monomeric olefins strung together upon obtaining the metallacycle intermediate and Vmthe molecular volume of the monomeric olefin.

Olefin oligomerization method involving a catalytic system based on organometallic complexes and a porous solid

The invention concerns a catalyst for hydrorefining and hydroconverting hydrocarbon feeds, comprising a mixed sulphide comprising at least two elements selected from elements with an atomic number selected from the group formed by the following numbers: 3, 11, 12, 19 to 33, 37, to 51, 55 to 83, 87 to 103, characterized in that the mixed sulphide results from a combination of at least one element the sulphide of which has a bond energy between the metal and sulphur of less than 50.+-.3 kcal/mol (209.+-.12 kJ/mol) and at least one element the sulphide of which has a bond energy between the metal and sulphur of more than 50.+-.3 kcal/mol (209.+-.12 kJ/mol), the mixed sulphide thus having a mean bond energy between the metal and sulphur which is in the range 30 to 70 kcal/mol (125 to 293 kJ/mol).

Catalyst compromising a mixed sulphide and its use for hydrorefining and

The process for slowing the growth and/or agglomeration of hydrates in a fluid comprising water and gases comprises adding gas hydrate growth and/or agglomeration inhibitors comprising an essentially water soluble polymer, characterized by a total number of rotational degrees of freedom per statistical repeat unit RDFTm of over 9, preferably over 10, and a degree of polymerization DP of a statistical repeat unit in the range 18/RDFTm to 200,000, preferably in the range 20/RDFTm to 100,000. The growth and/or agglomeration inhibitor(s) is/are generally incorporated into the fluid to be treated in a concentration of 0.05% to 5% by weight with respect to the amount of water in the medium.

Process for slowing the growth and/or agglomeration of hydrates in a

The invention relates to a process for treating a new or regenerated catalyst containing a support having as a base at least one metal or metalloid oxide and at least one active metal, comprising treating the catalyst with at least one sulfuration agent dissolved in a solvent. The invention is charcterized in that the sulfuration agent is a polysulfide with the following general formula

Process for presulfurizing a hydrocarbon treatment catalyst

The invention relates to a process for preparing a mercury collecting solid mass containing a carrier and copper, at least partly as copper sulfide, comprising the following steps of:

Processes for preparing and regenerating a copper containing mercury

For characterizing a catalyst, particularly a catalyst useful in refining of oil residues, by determination of its conversion and coking activities, the steps of:

Process for characterizing a catalyst by determination of its conversion

The invention concerns a process for sulfurizing a catalyst, particularly a refining catalyst comprising a carrier and active metal oxides. In a first step, a sulfur compound mainly consisting of organic polysulfide is introduced into the catalyst mass. A second step consists of first sulfurizing, in the absence of hydrogen, the active metal oxides at a temperature lower than 275.degree. C. and then activating the catalyst at a temperature higher than 275.degree. C. The present invention concerns a process for presulfurizing a hydrocarbon treatment catalyst and/or preconditioning a catalyst in view of subsequent presulfurization.

Process for presulfurizing a hydrogen treatment catalyst

This invention concerns a method of preparing catalysts and certain catalysts which can be obtained by the method. The method comprises (a) coprecipitating at least a group VIII metal sulfide with at least a group VIB metal sulfide, at a pH maintained at a value of 4.5 to 8; (b) separating the resultant precipitate; (c) drying the precipitate; and (d) calcining the dried precipitate; all the steps being effected under an inert atmosphere. The catalysts have a stoichiometry of 1.2 to 2.2 atoms of sulfur per metal atom, a crystallographic structure of molybdenite for the group VIB metal sulfide(s) and pyrite for the group VIII metal sulfide(s) and characterized by an X-ray diffraction powder pattern having at least two principal peaks a and b of the disulfide of each group VIB metal used (peaks a, b, c, d), and two principal peaks f and j of the disulfide of each group VIII metal used, (peaks e, f, g, h, i, j, k), the height of the principal peak of a group VIII metal monosulfide (1), if it appears being less than 5 times that of the principal peak (f) of the disulfide of the same metal, which are particularly active for all reactions between hydrogen and a mixture of hydrocarbons containing sulfide compounds.

Group VIII and VIB metal sulfide catalysts, their manufacture and their

Supported catalysts which are made by shaping catalyst carrier, with or without catalyst precursors, into balls, calcining the balls at 300.degree.-1000.degree. C., and crushing the calcined balls to particles whose average size is 0.2-0.8 times the average diameter of the balls. When the precursors are not present during the manufacture, they are added thereafter.

Process for the hydrotreatment of hydrocarbon oil employing catalysts

A process for hydrotreating hydrocarbons uses a catalyst which comprises a carrier and at least one catalytic metal selected from vanadium, molybdenum, tungsten, nickel, cobalt and/or iron; this catalyst is in the form of a plurality of juxtaposed agglomerates of acicular platelets, oriented radially to each other. It is prepared from agglomerates of activated alumina subjected to reaction with an acid and a compound providing an anion able to combine with aluminum ions in solution.

Process for hydrotreating metal containing oil fractions using a

Alumina, silica or silica-alumina containing catalysts are manufactured by incorporating at least one active element selected from the metals of the groups V, VI and VIII or their compounds to a carrier, and then drying and activating. The carrier or the catalyst is shaped into extrudates and the latter are crushed to coarse particles.

Crushed catalysts containing alumina, silica or silica-alumina, and

A process for conversion of an asphaltenes-containing heavy oil or heavy oil fraction to lighter fractions comprises 3 steps of: catalytic hydrodemetallation, hydrovisbreaking and catalytic hydrodesulfuration.

Heavy oil process with hydrodemetallation, hydrovisbreaking and

An asphaltene-containing heavy oil or heavy oil fraction is converted to lighter fractions in a process comprising three steps: a hydrovisbreaking, a catalytic hydrodemetallation and catalytic hydrodesulfuration.

Heavy oil process with hydrovisbreaking, hydrodemetallation and

Supported catalysts for use in hydrocarbons hydrotreatments are made by shaping catalyst carrier, with or without catalyst precursors, into balls, calcining the balls at 300.degree.-1000.degree. C., and crushing the calcined balls to particles whose average size is 0.2-0.8 times the average diameter of the balls. When the precursors are not present during the manufacture, they are added thereafter.

Process for manufacturing a supported catalyst for the hydrotreatment of

A process for the hydrotreatment of a heavy hydrocarbon fraction containing sulfur and metal impurities comprises at least two steps: a first step using a catalyst comprising a low proportion of at least one metal of groups V, VI and VIII, said catalyst being in the form of a plurality of juxtaposed agglomerates each formed of a plurality of acicular plates, the plates of each agglomerate being generally oriented radially with respect to one another and with respect to the center of the agglomerate, the carrier of this catalyst being preferably inert; and a second step using a catalyst which could be of the same type but with a higher proportion of metals. This process is useful for the conversion of crude oils, straight run hydrocarbon residues, deasphalted oils, asphalts dissolved in aromatic distillates and coal hydrogenates.

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Houilles, France

Herve Toulhoat