Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Rhodia Polyamide Intermediates

Ifp Engines Nouvelles

Ifp Emergies Nouvelles

Christophe Vallee

Damien Delcroix

Alexandra Chaumonnot

Audrey Bonduelle

Alain Forestiere

Emmanuelle Guillon

Helene Olivier-Bourbigou

Philibert Leflaive

Yves Chauvin

Bruno Delfort

Gerard Hillion

Renaud Cadours

Amandine Cabiac

Gérard Hillion

Hélène Olivier-Bourbigou

Severine Forget

Jean-Marie Basset

Etienne Girard

Jean-Christophe Galland

Didier Morvan

Catherine Santini

Emmanuel Pellier

Souad Rafik-Clement

Gerald Niccolai

Ludovic Chahen

Mikaël Berthod

Isabelle Clemencon

Vinciane Kelsen

Christine Bibal

Christine Valerio

The present invention relates to a hydrotreating catalyst comprising at least one group VIB metal, at least one group VIII metal and an alumina support having a gamma alumina content greater than 50% by weight and less than 100% by weight with respect to the weight of the support, said support having a specific surface area comprised between 25 and 150 m/g.

Hydrodesulphurization catalyst selective of gasolines from FCC

The invention relates to a process for the metathesis of olefins implemented with a catalyst comprising a mesoporous matrix and at least the elements molybdenum and silicon, said elements being incorporated into said matrix by means of at least two precursors of which at least one precursor contains molybdenum and at least one precursor contains silicon.

Olefin metathesis method using a catalyst containing silicon and molybdenum incorporated by means of at least two precursors

The invention relates to a process for the metathesis of olefins implemented with a catalyst comprising a mesoporous matrix and at least the elements molybdenum and silicon, said elements being incorporated into said matrix by means of at least one precursor comprising molybdenum and silicon and having at least one sequence of Si&#x2014;O&#x2014;Mo bonds.

Olefin metathesis method using a catalyst containing silicon and molybdenum

The invention relates to a process for the metathesis of olefins implemented with a catalyst comprising a mesoporous matrix and at least the elements molybdenum and aluminum, said elements being incorporated into said matrix by means of at least two precursors of which at least one precursor contains molybdenum and at least one precursor contains aluminum.

Olefin metathesis method using a catalyst containing aluminium and molybdenum incorporated by means of at least two precursors

The invention relates to a process for the metathesis of olefins implemented with a catalyst comprising a mesoporous matrix and at least the elements molybdenum and aluminum, said elements being incorporated into said matrix by means of at least one precursor comprising molybdenum and aluminum.

Olefin metathesis method using a catalyst containing aluminum and molybdenum

The invention concerns a process for the transformation of lignocellulosic biomass or cellulose into mono- or poly-oxygenated compounds, in which the lignocellulosic biomass or the cellulose is brought into simultaneous contact with a catalytic system comprising a combination of one or more homogeneous catalysts and one or more heterogeneous catalysts, in the same reaction chamber, in the presence of at least one solvent, said solvent being water alone or as a mixture with at least one other solvent, in a reducing atmosphere, and at a temperature in the range 80&#xb0; C. to 250&#xb0; C. and at a pressure in the range 0.5 MPa to 20 MPa.

Process for the transformation of lignocellulosic biomass into mono- or poly-oxygenated molecules

The invention relates to a process for transformation of lignocellulosic biomass or cellulose using in a simultaneous manner an original combination of at least two homogeneous catalysts and one or more heterogeneous catalyst(s). The use of these catalysts makes it possible to obtain mono-oxidized or poly-oxidized upgradable products directly and to limit the formation of non-upgradable products. Non-upgradable products are defined as soluble and non-soluble humins, i.e., products of high molecular weight obtained from undesirable condensation reactions of sugars and their derivatives.

Method for the conversion of lignocellulosic biomasses into mono-oxygenated or poly-oxygenated molecules

An enhanced method of producing ethers from iso-olefins and alcohols comprises at least one stage of separation of the excess alcohol by an ionic liquid. The ether-hydrocarbon-alcohol effluent treated in said separation stage by the ionic liquid comes from the reaction section and/or from a fractionating column. The separated and condensed alcohol is recycled in the process.

Ether production method involving alcohol separation by an ionic liquid

Novel group 6 organometallic compounds, supported on anions by means of at least one covalent metal-oxygen bond, are obtained by reaction of at least one borate or aluminate comprising at least one hydroxy group with at least one compound of a group 6 transition metal. These compounds are used in a catalytic composition utilized in an olefin metathesis method.

Complexes and method for synthesis of group 6 organometallics grafted on anions, and use thereof in an olefin metathesis method

Novel group 4 organometallic compounds, supported on anions by means of at least one covalent metal-oxygen bond, are obtained by reaction of at least one borate or aluminum comprising at least one hydroxy group with at least one group 4 transition metal compound. These compounds are used in a catalytic composition implemented in an olefin oligomerization or polymerization method.

Complexes and method for synthesis of group 4 organometallics grafted on anions olefin oligomerization and polymerization method

The present invention relates to the manufacture of nitrile compounds from unsaturated organic compounds by reaction with hydrogen cyanide. It relates more particularly to the manufacture of nitrile compounds of use in the synthesis of adiponitrile, an important chemical intermediate in the manufacture of major chemical compounds, such as hexamethylenediamine and &#x3b5;-caprolactam. The invention provides a process for the manufacture of organic compounds comprising at least one nitrile functional group by carrying out a hydrocyanation reaction between hydrogen cyanide and an organic compound comprising at least one ethylenic unsaturation. This reaction is carried out in the presence of a catalytic system comprising a metal element chosen from the group consisting of nickel, platinum and palladium and an organophosphorus ligand, the reaction medium additionally comprising an ionic liquid in the liquid state at least at the temperature at which the hydrocyanation reaction is carried out.

Method of producing nitrile compounds

In order to produce both an olefinic fraction and a composition of diacids or diesters of fats, a process is carried out which comprises, in succession: Of particular application to an oleic sunflower oil, an oleic rapeseed oil or to a mixture of mono-alcohol esters of said oils, whereupon the process can produce both an olefinic fraction (mainly composed of 1-decene) and a composition of diesters or diacids wherein, in general, over half of the chains is constituted by unsaturated Cchains (mainly composed of octadecene-9 1,18-iacid or diester) and to recycle the ethylene employed.

Process for co-producing olefins and diesters or diacids starting from unsaturated fats

An enhanced ether production process from an olefinic cut containing at least one iso-olefin and from an alcohol comprises a stage of removal of the acetonitrile present in the hydrocarbon feed by liquid-liquid extraction, the extraction solvent being a non-aqueous ionic liquid of general formula QA, wherein Qis an ammonium, phosphonium and/or sulfonium cation, and Aan anion likely to form a liquid salt with said cation. Advantageously, the method according to the invention generally allows the amount of water at the etherification reactor inlet to be divided by at least two and thus the purity of the ether produced to be improved.

Acetonitrile removal from the olefinic feed of ether production processes using ionic liquids

A process is described in which an unsaturated fat is reacted in a homometathesis reaction in the presence of at least one non-aqueous ionic liquid to produce both an olefinic fraction and a composition of monoalcohol diesters or diacids. Particular application to a mixture of esters of an oleic sunflower seed oil or an oleic rapeseed oil, the process producing both an olefinic fraction and a composition of monoalcohol diesters or diacids wherein, in general, more than half of its chains is constituted by unsaturated Cchains.

Growing community of inventors

Sassenage, France

Christophe Vallee