Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Axens

Other

Agip Petroli

Olivier Ducreux

Elsa Jolimaitre

Christophe Nedez

Fabienne Le Peltier

David Chiche

Patrick Euzen

Delphine Bazer-Bachi

Joseph Lopez

Tom Frising

Cyril Collado

Catherine Pommier

Thomas Serres

Jean Cosyns

Christophe Bouchy

Arnaud Baudot

Marie-Claire Marion

Magalie Roy-Auberger

Quentin Debuisschert

Karin Barthelet

Paul Broutin

Nicolas Boudet

Marie Claire Marion

John Lynch

Loïc Rouleau

Jean Christophe Viguie

Marc-Antoine Lelias

Marc Antoine Lelias

Jean-Christophe Viguie

The present invention relates to an adsorbent comprising an alumina support and at least one alkali element, said adsorbent being obtained by introducing at least one alkali element, identical to or different from sodium, onto an alumina support the sodium content of which, expressed as NaO equivalent, before the introduction of the alkali element or elements, is comprised between 1000 and 5000 ppm by weight with respect to the total weight of the support. The invention also relates to processes for the preparation of said adsorbent and use thereof in a process for the elimination of acidic molecules such as COS and/or CO.

Alumina-based adsorbent containing sodium and doped with an alkali element for capturing acidic molecules

The invention relates to a method for preparing a solid comprising the mixture of a set of compounds comprising at least one Cu(OH)COpowder, one metal oxide powder selected from the group of metals consisting of copper, zinc, iron, manganese and mixtures thereof, and at least one binder as well as the use of the solid prepared by means of this method.

Method for preparing solids from a mixture of at least one malachite powder and an oxide powder and the use of said solids

An alumina exhibiting a structure with a porosity such that the volume of the pores having a diameter of between 70 and 2000 &#x212b; is between 0.15 and 0.50 ml/g, and comprising at least one alkali metal (M), such that the content by weight of alkali metal, expressed as MO, is between 400 and 1500 ppm, with respect to the total weight of the alumina, and a process for the transformation of a feedstock comprising at least one alcohol into an olefinic effluent, said process comprising a stage of dehydration of said alcohol in the presence of the alumina according to the present invention, having an acidity and a structure with a porosity which are optimal.

Alumina having acidity and structure with a porosity which are optimal

The invention relates to a method for preparing a solid comprising a step of mixing a set of compounds comprising at least two Cu(OH)COpowders of different particle sizes and at least one binder and the use of the solid prepared by means of this method.

Method for preparing solids from a mixture of at least two malachite powders

Method for preparation of an adsorbent that comprises successive shaping stages by co-granulation of a faujasite-type zeolite powder A, with a powder B that consists of alumina, whereby the ratio per unit of mass of the powder A in the mixture of powders A and B is between 10 and 70%, for treatment under water vapor and drying. The invention also relates to a process for adsorption of organic contaminants that contain at least one heteroatom and that are present in an olefinic feedstock that comprises at least 50% by volume of hydrocarbons, whereby this process comprises the stage for bringing the olefinic feedstock into contact with the adsorbent that is obtained by the preparation method according to the invention.

Purification of an olefinic fraction by adsorption on alumina-faujasite co-granules

The invention concerns a process for purification by elimination of chlorine in the form of hydrogen chloride and organochlorine compounds by contacting in the presence of hydrogen of at least a part of the effluent from a reforming, aromatics production, dehydrogenation, isomerisation or hydrogenation zone, said part of the effluent comprising olefins, hydrogen chloride and organochlorine compounds, on an elimination zone comprising a chain arrangement of two masses, the first mass being a mass comprising at least one metal from group VIII deposited on a mineral carrier and the second mass being a hydrogen chloride adsorbent.

Elimination of chlorine compounds from hydrocarbon cuts

The invention relates to a process for finally removing sulphur-containing, nitrogen-containing and halogen-containing impurities contained in a synthesis gas, said process including: The synthesis gas purified in accordance with the process of the invention contains less than 10 ppb by weight, less than 10 ppb by weight of nitrogen-containing impurities and less than 10 ppb by weight of halogen-containing impurities.

Process for removing sulphur-containing, nitrogen-containing and halogen-containing impurities contained in a synthesis gas

A method and apparatus for capturing a chemical compound, typically an impurity, and for accumulating said chemical compound on a capture mass CAPT included in at least one removable adsorbent cartridge MC over a period exceeding 2 days, with a view to the external chemical analysis thereof. The apparatus ST suitable for capturing at least one chemical compound in a fluid flow for its detection and/or quantification comprise, downstream of said cartridge or cartridges, at least one device for measuring the cumulative flow which has traversed the cartridge or cartridges over a set time period. In a preferred variation of the invention, the capture mass CAPT is fragmented into a plurality of elementary masses CAPTi which allows for the spread of an irreversible adsorption front or the displacement of a chromatographic zone.

Method and apparatus for detecting and quantifying a chemical compound in a fluid flow

For testing performance levels and/ or changes over time of at least one catalyst (CAT) for a fixed-bed reactor: a device (CT) for a test, comprising at least one hollow metal cartridge (MC) containing the catalyst (CAT) is connected at a point A of an industrial chemical installation containing a reaction feedstock suitable for testing the catalyst (CAT); a liquid stream containing a fraction that is less than or equal to 1% of preheated reagents circulating in the industrial chemical installation is circulated in the cartridge (MC) through the catalyst (CAT) and sampled at a reaction temperature for a period (T), and returned to the industrial chemical installation at point B downstream of the device.

Process and installation for testing catalysts

A non-homogeneous adsorbent is described, formed of a core and at least one continuous outer layer in which the core of said adsorbent has a volume adsorptive capacity representing at least 35% of the volume of the adsorbent and the outer layer has a diffusional selectivity greater than 5. The adsorbent is used in gas-separation processes or liquid-separation processes.

Heterogeneous adsorbent and the use for diffusional separation methods

The invention relates to a method of isomerising a charge comprising hydrocarbons containing between 5 and 8 carbon atoms per molecule. According to the invention, said charge is separated into at least two fractions: fraction A mostly comprising hydrocarbons containing 5 or 6 carbon atoms and fraction B mostly comprising hydrocarbons containing 7 or 8 carbon atoms. Subsequently, said fractions A and B are treated separately under specific conditions in different isomerisation reaction zones.

Method for the isomerisation of a C5-C8 fraction involving two parallel reactors

For producing a gasoline stock with a high octane number, employed are at least one hydroisomerisation section and at least one section for adsorptively separating multibranched paraffins contained in a constituted by a C5 to C8 cut. The separation section contains at least one zeloitic adsorbent with a mixed structure with principal channels with openings defined by a ring containing 10 oxygen atoms and secondary channels with openings by a ring of at least 12 oxygen atoms, the secondary channels only being accessible to the feed to be separated via the principal channels.

Process combining hydroisomerisation and separation using a zeolitic adsorbent with a mixed structure for the production of high octane number gasolines

A process for separating multibranched paraffins comprised in a hydrocarbon feed comprising hydrocarbons containing 5 to 8 carbon atoms per molecule comprises a separation unit functioning by adsorption and contains at least one zeolitic adsorbent with a mixed structure with principal channels with openings defined by a ring containing 10 oxygen atoms and secondary channels with openings defined by a ring of at least 12 oxygen atoms, the secondary channels only being accessible to the feed to be separated via the principal channels. Particular zeolitic adsorbents of the invention are zeolites with structure types EUO, NES and MWW. NU-85 and NU-86 zeolites are also particularly suitable for carrying out the process of the invention.

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Louveciennes, France

Olivier Ducreux