Total Raffinage Distribution S.a.

Other

Compagnie De Raffinage Et De Distribution Total France

Alain Milan

Georges Szabo

Pedro Nascimento

Sebastien Decker

Joeri Denayer

Jean-Louis Mauleon

Pedro Da Silva

Jacques Couillard

Jean-Pierre Dath

Peter Mangnus

Sebsastien Decker

Marc Bisson

Egbertus F Schasfoort

Method for drying the charge from a unit that treats petroleum cuts with a low water charge

A catalytic support includes a substantial quantity of at least one SVI group Periodic Table metal oxide in which is incorporated silica. The mass ratio between the quantity of SVI group metal oxide and the quantity of silica it contains ranges between 5 and 70, the SVI group metal oxide is in crystalline form, and the specific surface of the support is greater than or equal to 160 m /g.

Catalytic support with an oxide base from a metal belonging to the SVI group of the periodic table, its preparation and its uses

The invention relates to an acid catalyst containing a substantial quantity of supported or mass sulfated zirconia and at least one hydrogenating transition metal. This catalyst is characterized by the fact that the sulfated zirconia is in crystallized form and that it shows a specific surface area greater than or equal to 135 m /g, a pore volume greater than or equal to 0.16 cm /g and an average pore diameter greater than or equal to 20 Angstroms (20&times;10 m). The invention also relates to methods of making this catalyst and to the uses of this catalyst in hydrocarbon transformation chemical reactions requiring the use of an acid type catalyst, such as for example, isomerization, alkylation, oligomerization reactions or even light hydrocarbon dehydration reactions, and also heavier hydrocarbon hydrocracking and hydroisomerization reactions. In a preferred embodiment of the method of the present invention, a hydrated zirconia gel is washed with a soluble polar organic solvent (other than water). In accordance with the method including this washing step, a solid acid catalyst containing pure mass sulfated zirconia in a crystallized form has a surface area greater than or equal to 150 m /g, a pore volume greater than or equal to 0.2 cm /g, and more preferably greater than or equal to 0.25 cm /g, and an average pore diameter greater than or equal to 20 Angstroms (20&times;10 m) and preferably greater than or equal to 30 Angstroms (30&times;10 m).

Acid catalyst with a sulfated zirconia base and its uses

An alkylation catalyst including a least one porous refractory metal oxide with at least one halogen on the surface thereof. The catalyst contains 0.005-1 wt % of at least one metal from groups IA and IIA of the periodic table of the elements and is particularly useful in an isobutane alkylation method using light olefins.

Alkylation catalyst, method for preparing same, and use thereof in alkylation methods

The invention relates to a process of activating a supported acid catalyst, and consists in the conversion of Lewis acid-type acid sites which are deposited on a solid substrate into activated acid sites in a non-oxydizing acid medium. The catalyst is exposed to a phase of activation in a medium containing a holohydric acid or a halohydric acid precursor, in the presence of at least one preferably parafinic hydrocarbon or hydrocarbon derivative, at a temperature greater than 20&deg; and preferably between 100&deg; C. and 250&deg; C., and at a pressure of between 10,and 50,10,Pa, for a length of time sufficient to ensure conversion into activated acid sites.

Process for activating halogenated catalysts, catalysts obtained by this process, and use of these catalysts in acid catalyst processes

The invention relates to an acid catalyst containing a substantial quantity of supported or mass sulfated zirconia and at least one hydrogenating transition metal. This catalyst is characterized by the fact that the sulfated zirconia is in crystallized form and that it shows a specific surface area greater than or equal to 150 m,/g, a pore volume greater than or equal to 0.20 cm,/g and an average pore diameter greater than or equal to 20 Angstroms (20&times;10,m). The invention also relates to methods of making this catalyst and to the uses of this catalyst in hydrocarbon transformation chemical reactions requiring the use of an acid type catalyst, such as for example, isomerization, alkylation, oligomerization reactions or even light hydrocarbon dehydration reactions, and also heavier hydrocarbon hydrocracking and hydroisomerization reactions.

The invention relates to a process for the preparation and activation of a catalyst, comprising a stage of fabricating a support consisting at least in part of at least one refractory oxide mineral, a stage of depositing on the support at least one metal from the platinum group, and a stage intended for forming on the support at least two metal halides of the Lewis acid type. Between the deposition of the metal halides of the Lewis acid type and the utilization of the catalyst in the reactor, the catalyst is subjected to an activation stage by being maintained in an acidic and nonoxidizing or reducing medium at a temperature between 300.degree. and 475.degree. C. so that its final content of a promoter metal of the zirconium, molybdenum tungsten or titanium type ranges from 0.15 to 1 percent, based on the weight of the support.

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Montivilliers, France

Alain Milan