Institut Francais Du Pe'trole

Ifp Energies Nouvelles

Institut Francais Du Petrole, Des Carburants Et Lubrifiants

Sophor S.a.

Onidol

Gerard Hillion

Robert Stern

Christian Lassau

Jean-Jacques Rouxel

Yves Chauvin

Bruno Delfort

Helene Olivier-Bourbigou

Daniel Durand

Christophe Vallee

Serge Leporq

Abakar Kotoko

Alain Forestiere

Denis Uzio

Jean-Pierre Durand

Pierre Boucot

Patrick Sarrazin

Laurent Bournay

Helene Olivier

Christine Dalmazzone

Jean-Alain Chodorge

Remy Marchal

Marie Velly

Renaud Revel

Thierry Lacome

Paul Gateau

David Proriol

Anne Sinquin

Isabelle Durand

Charles Bronner

Christophe Gautreau

Laurent Savary

Jean-Claude Guibet

Lucien Sajus

Pierre Dixneuf

Katja Siepen

Frederique Borzeix

Cyril Thurier

Corinne Stoltz

Odile Le Borgne

Gustave Acakpo

Mohammed Neguib Eisa

A process for producing biofuels by transforming triglycerides into at least two families of biofuels, monoesters of fatty acids and soluble ethers and/or acetals of glycerol, comprises:

Method for producing biofuels, transforming triglycerides into at least two biofuel families: fatty acid monoesters and ethers and/or soluble glycerol acetals

A process is described in which an unsaturated fat is reacted with ethylene in a metathesis reaction in the presence of at least one non-aqueous ionic liquid to produce both an olefinic fraction and a composition of monoalcohol or polyol esters. Particular application to an oleic sunflower seed oil, an oleic rapeseed oil or to a mixture of monoalcohol esters of said oils, the process producing both an olefinic fraction and a monoalcohol or glycerol esters composition generally having more than half of its chains constituted by unsaturated Cchains.

Process for co-producing olefins and esters by ethenolysis of unsaturated fats in non-aqueous ionic liquids

A process for the selective hydrogenation of diolefinic compounds to mono-olefinic compounds uses a catalyst composition comprising at least one salt of a transition metal from groups IB, IIB, VB, VIB, VIIB and VIII of the periodic table, at least one ligand and at least one organometallic reducing agent, optionally in the presence of a non-aqueous ionic liquid selected from the group formed by liquid salts with general formula QA(in which Qrepresents a quaternary ammonium and/or quaternary phosphonium and Arepresents any anion which can form a liquid salt below 90&#xb0; C.).

Method for selective hydrogenation of polyunsaturated compounds into monounsaturated compounds using a homogeneous catalyst

A novel process is described for producing esters of linear monocarboxylic acids containing 6 to 26 carbon atoms, by reacting vegetable or animal oils, neutral or otherwise, with monoalcohols containing 1 to 18 carbon atoms in the presence of a catalyst selected from:

Process for transesterification of vegetable or animal oils using heterogeneous catalysts based on titanium, zirconium or antimony and aluminium

Alkyl esters of fatty acids, and high purity glycerin, are produced using a process comprising a set of transesterification reactions between a vegetable or animal oil and an aliphatic monoalcohol employing a heterogeneous catalyst, for example based on zinc aluminate, the water content in the reaction medium being controlled to a value that is below a given limiting value.

Process for producing alkyl esters from a vegetable or animal oil and an aliphatic monoalcohol

A cobalt catalytic system that makes it possible to obtain branched compounds from fatty substances by reacting simple olefins on polyunsaturated esters, which may or may not be conjugated, is described. The compounds that are obtained may be hydrogenated and used as lubricant bases.

Process for the codimerization of polyunsaturated fatty substances and

In order to produce a composition of esters of linear monocarboxylic acids containing 6 to 26 carbon atoms and glycerine simultaneously with high degrees of purity, the following is carried out: a step a) in which a plant or animal oil, which may or may not be acidic, is reacted with an excess of at least one aliphatic mono-alcohol containing 1 to 4 carbon atoms in the presence of a heterogeneous catalyst, eliminating the excess mono-alcohol and separating out glycerine, this step producing a crude ester containing residual mono-glycerides; a step b) in which the crude ester obtained undergoes transesterification or esterification of the residual mono-glycerides to di- and tri-glycerides, in the presence of a heterogeneous catalyst; and a step c) in which the ester composition is evaporated under reduced pressure, recycling the evaporation residue to the starting oil of step a). The ester compositions obtained, which are of high purity, are of particular use as gas oil substitutes.

Process for producing esters of fatty substances and the high purity

For the production of ethyl esters of fatty acids from fatty acid glycerides such as vegetable or animal oil or fat or other mixtures of glycerides, the process comprises the following stages: (a) transesterifying fatty acid glycerides with hydrated ethyl alcohol using an alkaline catalyst to form a medium comprising ethyl esters and excess ethyl alcohol; (b) adding a glycerine phase to said medium, and evaporating the excess ethyl alcohol to produce two immiscible phases, an ester phase and a glycerine phase A, and recycling said excess ethyl alcohol to stage (a); (c) separating said glycerine phase A and said ester phase to obtain the desired ethyl esters; (d) neutralizing said glycerine phase A with acid, and separating resultant 'fatty acids+esters' phase and a glycerine phase B, and drying the latter phase; (e) subjecting the 'fatty acids+esters' phase to glycerolysis with at least a fraction of the dried glycerine phase B in the presence of an alkaline catalyst to form a mixture of glycerides and esters, and passing said mixture into transesterification stage (a).

Process for the production of ethyl esters

A method of transporting hydrates suspended in a fluid comprising water, a gas and a liquid hydrocarbon is described in which at least one non-ionic amphiphilic composition obtained by reacting at least one polymerized unsaturated vegetable oil with an aminoalcohol is incorporated into the fluid. The non-ionic amphiphilic composition is generally introduced in a concentration of 0.1% to 5% by weight with respect to the water.

Method of transporting hydrates suspended in production effluents

For the production of linear monocarboxylic acid esters with 6 to 26 carbon atoms vegetable oils or animal oils, which may or may not be neutral, are reacted with monoalcohols having a low molecular weight, for example 1 to 5 carbon atoms, in the presence of a catalyst that is selected from among zinc oxide, mixtures of zinc oxide and aluminum oxide, and the zinc aluminates that correspond to the formula:

Process for the production of esters from vegetable oils or animal oils

For the oligomerization of a fatty ester or fatty acid containing conjugated double bonds, the reaction uses a catalyst consisting of an activated earth, e.g., montmorillonite, at a temperature of from 100.degree.-180.degree. C., preferably from 130.degree.-160.degree. C. The process can be carried out continuously or in a batch process on a fixed bed and is particularly applicable to conjugated methyl esters obtained by conjugating and transesterifying sunflower seed oil. The oligomerized products obtained are particularly useful as lubricants or polycondensation reactants.

Process for oligomerization of polyunsaturated acids and esters,

Use of a sophorolipid to provide free radical formation inhibiting

A process is described for the treatment of an aqueous medium which has been polluted with hydrocarbon compounds, termed crude oil, and a demulsifying and dispersing composition. The crude oil is brought into contact with a solution of a mixture of polyglycerol esters in a proportion of at least 50 ppm by weight in order to inhibit formation of a water-in crude oil emulsion or to partially break the emulsion if it has already formed. The polyglycerol esters can be combined with a surfactant, preferably an anionic surfactant, such as a sodium alkylsulphosuccinate.

Process for the treatment of an aqueous medium polluted with

Method of preparation of a hydrogenation catalyst soluble in an organic

Co dimerization is conducted of at least one monoolefin, for example a monoolefinic hydrocarbon such as ethylene, propylene or 1-butene, a halogenated monoolefin such as vinyl chloride, or an olefinic functional compound such as methyl acrylate, acrylonitrile, allyl acetate or vinyl acetate, with at least one polyolefin containing at least two conjugated or unconjugated ethylene bonds, for example a diene hydrocarbon such as 1,3-butadiene, piperylene, or isoprene or a polyolefin containing a carboxylic function, such as a fatty acid or a fatty acid ester having 14 to 24 carbon atoms in the fatty chain derived, for example, from a natural oil. The reaction is carried out in the presence of a catalytic system having general formula [RhX.sub.4 ][YR.sub.4 ] where X represents a halogen ion or a SO.sub.4.sup.--, SO.sub.3.sup.-, OH.sup.-, OR.sup.- or R.sup.- group, at least one X being a halogen ion, Y represents a nitrogen atom or a phosphorous atom, and R represents an alkyl, cycloalkyl, alkenyl, aryl, alkylaryl, polystyryl, alkyl polystyryl or acyl radical.

Process for codimerization of dienes and olefins

Growing community of inventors

Herblay, France

Gerard Hillion