Institut Francais Du Pe'trole

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Societe Francaise Des Produits Pour Catalyse 'Procatalyse'

Societe Francaise Des Produits Pour Catalyse Pro-Catalyse Chez Institute

Jean-Paul Bournonville

Francis Raatz

Christine Travers

Jean-Pierre Franck

Laurent Petit

Jean-Louis Guth

Quang Dang Vu

Roger Snappe

Jean-Charles Viltard

Jean Miquel

Larry Mank

Jean-Pierre Candy

Bernard Juguin, Deceased

Chan Trinh Dinh

Alain Seive

Jean Cosyns

Blaise Didillon

Jean-Francois Le Page

Pierre Dufresne

Christian Marcilly

Germain J Martino

Gil Mabilon

Henri Kessler

Chan T Dinh

Maurice Berthelin

Trinh Dinh Chan

Jean-Marie Bassett

Sylvie Juguin

Jeannine Juguin

By Jeannine Juguin, Legal Representative

By Sylvie Juguin, Legal Representative

Strinivasan Vasudevan

For the catalytic aromatization of hydrocarbons containing 5 to 9 carbons atoms per molecule, use is made of a catalyst containing a MFI zeolite containing at least one noble metal from the platinum family and at least one additional metal chosen from the group constituted by tin, germanium, lead and indium, and optionally an amorphous matrix.

Process for the aromatization of hydrocarbons containing 5 to 9 carbon

For the aromatization of hydrocarbons containing 2 to 4 carbon atoms per molecule in the presence of a specific and preferably acid catalyst, the catalyst contains an MFI zeolite in which is introduced at least one noble metal from the platinum family and at least one additional metal chosen from within the group consisting of tin, germanium, lead and indium, and the catalyst optionally contains an amorphous matrix.

Process for the aromatization of hydrocarbons containing 2 to 4 carbon

The invention relates to a catalyst and a catalytic process for the aromatization of hydrocarbons containing 2 to 4 carbon atoms per molecule. The catalyst contains a MFI zeolite and an amorphous matrix containing at least one noble metal from the platinum family, at least one additional metal chosen from tin, germanium, lead and indium and at least one alkali metal or alkaline earth metal.

Catalyst containing a zeolite, a noble metal from the family of

The invention concerns the production of a diolefinic unsaturated alcohol such as geraniol or nerol by the selective hydrogenation of citral. It is characterized by the use of a catalyst based on a metal from group VIII and based on a metal selected from the group made up of tin, germanium and lead, on preferably a silica carrier.

Hydrogenation of citral

A reactor for low pressure catalytic reforming of gasolines with heating by smoke gases comprises: at least one device for introducing and removing the charge; at least one device for introducing and removing the catalyst; at least two elementary reaction cells spaced apart from each other are made of substantially vertical and parallelepipedic enclosures (an individual charge distributor, an individual processed charge collector, a catalytic bed); at least one general charge distributor; and at least one general processed charge collector.

Apparatus for the low pressure reforming of gasolines with heating by

A MFI-based gallosilicate type catalyst is described. The catalyst is characterized by the following composition expressed by weight:

Catalyst of the gallosilicate type and its utilization for the

An aluminosilicate type catalyst and its use in the aromatization of a C.sub.2 -C.sub.4 light-gas cut in the presence or not of olefins is described. The catalyst is characterized by the following composition expressed by weight:

Catalyst of the gallium-containing aluminosilicate type and its

The invention provides a method for the catalytic low pressure reforming of gasolines, in the presence of hydrogen, in a reaction zone defined by a substantially cylindrical enclosure. The reaction contains a catalyst bed which has the form of a ring defined by two coaxial cylindrical walls, in which a plurality of hollow internal spaces defined by walls are entirely disposed. A heat-carrying fluid flows through the hollow internal spaces. The gasoline pass through the catalyst bed substantially perpendicularly to the longitudinal axis of the reaction zone.

A Catalytic reforming method with flow of a heat-carrying fluid through

Catalyst of the gallosilicate type and its utilization of light C.sub.2

The present invention relates to a process and a reactor for low pressure catalytic reforming of gasolines with heating by smoke gases. The reactor of the invention comprises:

Process and apparatus for the low pressure reforming of gasolines with

The present invention concerns a new decationized, dealuminated and stabilized zeolite of L type, characterized particularly by:

Decationized, dealuminated and stabilized L zeolite and use thereof

Process for regenerating or activating a catalyst for isomerizing n-paraffins, containing at least one group VIII metal supported on an acid mordenite, wherein, after having lost at least a part of its initial activity, said catalyst is treated in a first step with an oxygen-containing gas at a temperature lower than about 550.degree. C., so as to remove the major part of the catalyst coke content, and in a second step the resultant product from the first step is oxychlorinated to a temperature of about 200.degree.-500.degree. C. by means of a gas mixture containing oxygen, water and chlorine or at least one chlorinated compound, said chlorine or chlorinated compound being used in a total amount of 0.5-10% by weight, calculated as chlorine, in proportion to the mordenite weight.

Process for regenerating or activating a n-paraffin isomerization

A catalyst for isomerizing a hydrocarbon cut of high n-paraffin content is disclosed. The catalyst is obtained by controlled oxychlorination of a solid containing at least one group VIII metal supported on an acid mordenite, said mordenite having a sodium content lower than 0.2% by weight, adsorbing molecules of a kinetic diameter larger than about 6.6 Angstroms, having a mesh volume, V, of the elementary mesh from 2.73 to 2.78 nm.sup.3 and a benzene adsorption capacity higher than 5% by weight, said oxychlorination being conducted at a temperature of about 200.degree.-500.degree. C. by means of a gas mixture containing oxygen, water, chlorine or at least one chlorinated compound used in a total amount from 0.5 to 10% by weight of chlorine, in proportion to the mordenite weight. The catalyst may further contain a matrix, the mordenite amount being at least 40% by weight of the total amount of mordenite and matrix.

Catalyst of high mordenite content for isomerizing normal paraffins and

A process for the catalytic reforming of a hydrocarbon charge wherein the charge passes successively through at least two catalyst beds, the first one being a bed of a first catalyst whose carrier contains platinum, rhenium and at least one halogen, at least the last bed being a moving bed of a second catalyst whose carrier contains platinum, at least one additional metal M selected from the group consisting of tin, gallium, germanium, indium, lead and thallium and at least one halogen, said metal M being introduced onto this carrier by means of an organometallic compound and the proportion by weight of said second catalyst being from 25 to 55% of the total catalyst mass used in all the catalyst beds. The charge preferably passes through at least two fixed beds of the first catalyst and at least one moving bed of the second catalyst, the carrier of the two catalysts being preferably alumina. By this process high grade gasolines (of Research Octane Number higher than 95) are produced over long periods.

Process for the catalytic reforming of a charge passing through at least

A catalytic reforming process using catalysts containing a carrier, platinum, rhenium and optionally at least one metal selected from the group consisting of tin, germanium, lead, indium, thallium and titanium, arranged in several successive catalyst beds wherein the catalyst of the first bed has a Re/Pt ratio higher than the Re/Pt ratio of the catalyst used in the last bed, said catalyst of the last bed containing at least 0.08% of rhenium in proportion to the carrier. The catalysts preferably contain at least one halogen in an amount, expressed in proportion to the carrier, from 0.1 to 15%, said carrier preferably consisting mainly of alumina. In a preferred embodiment 3 successive catalyst beds are used wherein the Re/Pt ratios are, as a whole, decreasing from the first bed to the last bed.

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Cergy Pontoise, France

Jean-Paul Bournonville