Institut Francais Du Pe'trole

Ifp Energies Nouvelles

Rhodia Chimie

Fp Energies Nouvelles

Christine Dalmazzone

Bruno Delfort

Annie Audibert

Annie Audibert-Hayet

Benjamin Herzhaft

Lionel Rousseau

Claire Giard-Blanchard

Bruno Langlois

Gerard Hillion

Fabrice Diehl

Delphine Bazer-Bachi

Julien Grandjean

Joseph Lopez

Aurelie Dandeu

Sylvie Touzet

Thierry Palermo

Laurie Starck

Maira Alves Fortunato

Laetitia Giraudon

Aurelie Mouret

Vincent Le Corre

Sebastien Gonnard

Nicolas Pannacci

Rafael Lugo

Vincent Pauchard

Sinquin Anne

Anne Lise Taleb

Aurelie Mouret-Henriques

Emilie Bordes

Anne-Lise Taleb

The present invention relates to a device () for measuring the oxidation stability and/or the thermal stability of any type of fuel, including diesel fuel, by miniaturization of the test system by use of a microfluidic technique. The physical phenomena to which fuels are subjected are reproduced by the microchannels () of the microfluidic chip (), which comprise a representation of at least one of the fuel injection and the fuel circulation for a drive system, an internal-combustion engine or an aircraft reactor for example.

Device for measuring the oxidation stability and/or the thermal stability of a fuel by means of a microfluidic chip

The present invention describes a fluid which is suitable for the decontamination of heat engines which can carry out, at the same time, both the catalytic reduction of oxides of nitrogen (NOx) contained in exhaust gases and assist in the regeneration of the particulate filter (PF). The invention also describes several embodiments of said fluid consisting of producing an oil-in-water type emulsion.

Fluid for purifying heat engines and methods for preparing said fluids by emulsification

The present invention concerns spheroidal alumina particles characterized by a BET specific surface area in the range 150 to 300 m/g, a mean particle diameter in the range 1.2 to 3 mm and a particle diameter dispersion, expressed as the standard deviation, not exceeding 0.1, a total pore volume, measured by mercury porosimetry, in the range 0.50 to 0.85 mL/g, a degree of macroporosity within a particle of less than 30%, and in which the dispersion of the diameters of the macropores, expressed as the ratio D90/D50, does not exceed 8. The invention also concerns processes for the preparation of said particles as well as catalysts comprising said particles as a support, and their use in catalytic hydrocarbon treatment processes, in particular in a catalytic reforming process.

Spheroidal alumina particles with improved mechanical strength having a macroporous median diameter in the range 0.05 to 30 &#x3bc;m

The present invention relates to a method for determining the kinetics of gas hydrate formation in a fluid comprising water, wherein the following stages are carried out:

Method of analyzing the kinetics of gas hydrate formation in fluids

In order to transport hydrates in suspension in a fluid comprising water, gas and a liquid hydrocarbon, at least one non-polluting composition consisting essentially of a mixture comprising at least one ester associated with a non-ionic co-surfactant of the polymerized (dimer and/or trimer) carboxylic acid type is incorporated into said fluid. The composition is generally introduced in a concentration of 0.1% to 5% by weight with respect to the liquid hydrocarbon.

Method for transporting hydrates in suspension in production effluents empolying a non-polluting additive

In order to determine the gas hydrate anti-agglomeration power of a system composed of an aqueous phase dispersed in a liquid hydrocarbon phase in the presence of a gas, at least two successive cycles of hydrate formation and dissociation is carried out by cooling and reheating a sample of said system placed in the cell of a calorimeter to record thermograms; the anti-agglomeration power of said system is determined by comparing the thermograms obtained during the various cycles.

Method for determining the gas hydrate anti-agglomeration power of a water/oil system

The present invention relates to an additive that inhibits formation of gas hydrates for water-based drilling fluid, the additive having at least the following constituents (weight percent):

Method and thermodynamic inhibitors of gas hydrates in water-based fluids

A temperature-stable, non eco-toxic oil-base well fluid that is particularly suitable for high pressure/high temperature drilling comprises an emulsification system comprising at least one superamide that may or may not be polyalkoxylated, optionally associated with a non-ionic co-surfactant. The oil-base well fluid comprising such a system can be used at temperatures of up to about 200&#xb0; C. due to the production of highly temperature-stable reverse emulsions.

Oil-based drilling fluid comprising a temperature-stable and non-polluting emulsifying system

An organic based emulsion-breaking formulation for use in treating well bores drilled in oil-bearing mud that is not eco-toxic and is optimally compatible with formation fluids comprises: Such a formulation can be weighted by mineral fillers.

Organic emulsion-breaking formula and its use in treating well bores drilled in oil-base mud

An oil-based demulsifying formulation which can be used in the treatment of drains bored in oil-based mud, non ecotoxic and optimally compatible with formation fluids, comprises at least one wetting agent chosen from anionic surfacetants and at least one demulsifier (or 'emulsion breaker') chosen from copolymers of ethylene oxide and propylene oxide, alcohol or phenol derivatives with alkoxylated or polyalkoxylated chain formations, polyalkyleneglycols, polyamines, alkoxylated or polyalkoxylated derivatives of amines, quaternary ammonium salts, quaternized alkanolamine esters, alkyl esters of fatty acids or natural oils, possible alkoxylated or polyalkoxylated, and silicated derivatives such as polysiloxanes.

Oil-based demulsifying agent and its use in the treatment of drains bored in oil-based mud

Method and device for evaluating during drilling the capacity of well fluids to form hydrates

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

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Versailles, France

Christine Dalmazzone