Ifp Energies Nouvelles

Axens

Institut Francais Du Pe'trole

Ceca S.a.

Cece S.a.

Ifp Bnergies Nouvelles

Arkema France

Tom Frising

Philibert Leflaive

Gerard Paul Hotier

Patrick Euzen

Ludivine Bouvier

Catherine Laroche

Delphine Bazer-Bachi

Olivier Ducreux

Joseph Lopez

David Chiche

Stéphane Kieger

Thomas Serres

Arnaud Baudot

Helene Rodeschini

Isabelle Villechange

Damien Leinekugel-Le-cocq

Damien Leinekugel Le Coco

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

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

A process for purifying a hydrocarbon feed, using a first adsorption unit with first and second adsorption columns respectively filled with first and second adsorbent solids by simultaneously:

Process for purifying a hydrocarbon feed

Process for the production of paraxylene from a C8 aromatic feedstock that comprises the following stages:

Process for separation of C8 aromatic compounds with limited recycling

The present invention relates to aggregate zeolitic adsorbents based on zeolite X and zeolite LSX. These adsorbents are particularly suitable for separating Caromatic isomers and in particular xylenes, separating sugars, separating polyhydric alcohols, separating isomers of substituted toluenes, separating cresols, separating dichlorobenzenes.

Aggregate zeolitic absorbents, their method of preparation and their uses

A device (SMB) for separation by simulated moving bed adsorption comprises a plurality of elementary zones Zin series operating in a closed loop, each of said zones comprising, between two successive fluid injection or extraction points, a unique bed Lof adsorbant solid with volume VAand a non-selective free volume V, in which the majority of the zones are ordinary elementary zones each having an identical volume VA of the same adsorbant S, and a substantially identical non-selective free volume equal to V; the device also comprises at least one particular elementary zone Z, termed the particular elementary zone, comprising a non-selective free volume Vwhich is greater than V, and a unique bed Lof adsorbant Swith volume VAwhich is less than VA, Shaving a volume adsorption capacity Cwhich is greater than that, C, of S, such that the overall adsorption capacity C&#xd7;VAof Zis closer to the overall adsorption capacity C&#xd7;VA of each of the ordinary elementary zones than the overall adsorption capacity of Zcalculated as if the adsorbant solid of bed Lof Zwere not the solid Sbut the solid S.

Device for simulated moving bed separation

The invention relates to aggregate zeolitic adsorbents based on faujasite X type zeolite powder having a low silica content and small crystals, exchanged with barium or based on faujasite X type zeolite having a low silica content and small crystals, exchanged with barium and potassium. The invention also relates to the method for preparing said aggregate zeolitic adsorbents, and also their uses for separating sugars, polyhydric alcohols, isomers of substituted toluene, cresols, or for recovering very high purity paraxylene.

A device (SMB) for separation by simulated moving bed adsorption comprises a plurality of elementary adsorption zones Zin series operating in a closed loop, and at least one singular adsorption zone with a dead volume which is greater than the adsorption zones Z, the solid adsorbant of said singular adsorption zone having a granulometry which is lower than that of the solid adsorbant of the ordinary adsorption zones.

Growing community of inventors

Nanterre, France

Tom Frising