Institut Francais Du Pe'trole

Ifp Energies Nouvelles

Stephane Harry

Helene Olivier-Bourbigou

Dominique Commereuc

Lionel Magna

David Proriol

Lucien Saussine

Natacha Touchais

Fabien Grasset

Sandrine Berard

Cedrik Popelin

The invention describes a process for oligomerization of olefins into compounds or into a mixture of compounds of general formula CHwith 4&#x2266;p&#x2266;80 that employs a catalytic composition that comprises at least one organometallic complex of an element of group IV that is selected from titanium, zirconium, and hafnium, wherein the organometallic complex contains at least one alkoxy-type ligand that is functionalized by a heteroatom selected from nitrogen, oxygen, phosphorus and sulfur, or by an aromatic group.

Process for oligomerization of olefins that uses a catalytic composition that comprises an organometallic complex that contains an alkoxy ligand that is functionalized by a heteroatom

A process for producing a base for a fuel from a C2 ethanol feedstock, by a first stage for oligomerization of the feedstock into a hydrocarbon effluent that contains a mixture of olefins for the most part having between 4 and 30 carbons, and contains a C10-C24 fraction that has a mean linearity that is greater than 60%, in the presence of a homogeneous catalytic system that contains a metal precursor of titanium, zirconium, hafnium, nickel and/or iron, a second stage for oligomerization of a portion of the effluent that is obtained from stage a), into a hydrocarbon effluent that contains a mixture of olefins for the most part having between 4 and 30 carbon atoms, and containing a C10-C24 fraction that has a mean linearity that is less than 50%, in the presence of a homogeneous catalytic system.

Process for the production of a fuel base from an ethylene feedstock implementing at least one oligomerization stage in the presence of a homogeneous catalytic system

In a process for liquid phase carbonylation of alcohols by carbon monoxide, the carbonylation reaction is carried out in a reaction zone at a temperature of 50&#xb0; C. to 150&#xb0; C. at a pressure in the range 0.5 MPa to 20 MPa in the presence of at least one catalyst comprising at least one rhodium and/or iridium complex and a halogenated promoter in at least one non-aqueous ionic liquid comprising at least one salt with general formula QA, in which Qrepresents a quaternary ammonium and/or a quaternary phosphonium cation, said salt having a melting point of less than 90&#xb0; C.; the non-aqueous ionic liquid containing at least the major portion of the catalyst is separated; and the separated non-aqueous ionic liquid containing at least the major portion of the catalyst is returned to the reaction zone.

Process for carbonylating alcohols, employing a catalyst based on rhodium or iridium in a non-aqueous ionic liquid, with efficient catalyst recycling

A catalytic composition for the dimerization, the codimerization or the oligomerization of olefins is obtained by bringing into contact at least one nickel compound that contains a heterocyclic carbene with at least one hydrocarbylaluminum halide and optionally at least one organic solvent. It is used in a process of dimerization, codimerization or oligomerization of olefins.

Catalytic composition and process for dimerization, codimerization and oligomerization of olefins

A catalytic composition for the dimerization, the codimerization or the oligomerization of olefins results from the dissolution of at least one nickel complex that contains a heterocyclic carbene in a liquid mixture that comprises at least one ammonium halide or quaternary phosphonium halide, at least one aluminum halide and optionally at least one organometallic aluminum compound. It is used in a process of dimerization, codimerization or oligomerization of olefins.

Growing community of inventors

Jardin, France

Stephane Harry