Le Carbone Lorraine

Societe Nationale Elf Aquitaine

Elf Aquitaine

Michel Moreau

Philippe Prades

Pierre Bou

Claude Drapier

Rachid Yazami

Bernard Spinner

Jacques Maire

Sylvain Mauran

Philippe Gimenez

Gabriel Colombier

Michel Lebrun

Helene Septier

Daniel Fely

Marc Deschamps

Active composite consisting of a compressed support and of at least one agent which is active towards a gas, the compressed support including recompressed expanded graphite which has a density of between 0.02 and 1.5. According to the invention the active composite is made up of a series of sheets superposed one above the other, the active agent being dispersed in the flakes.

Active composite with foliated structure and its use as reaction medium

A reactor for a chemical heat pump including a sealed container provided with a heating and cooling system and having an inside wall, and a solid reagent having an outer surface and disposed in the container, which solid reagent reacts reversibly with a reagent gas inside the container, the solid reagent having dimensions such that a space is defined between the outer surface of the solid reagent and the inside wall of the container. A fluid contact material occupies at least part of the space, the fluid contact material being a good conductor of heat and chemically inert relative to the solid reagent.

Chemical heat pump reactor with improved power

A composite carbon/polymer electrode for a rechargeable electrochemical lithium cell comprises a powder of carbonaceous material and a coating polymer rendered ionically conductive by the addition of a lithium salt, and possibly carbon black or carbon fibers. The carbonaceous material has a proportion of volatile matter between 5 and 22 wt %, and is preferably a raw coke or a semi-coke.

Composite carbon/polymer electrode for a rechargeable electrochemical

The subject of the present invention is an electrode based on carbonaceous material for rechargeable electrochemical lithium generators. The carbonaceous material is a pitch coke with a mosaic texture subjected to a pre-lithiation treatment before the production of the electrode. The carbonaceous material is preferably a coal tar pitch coke with a mosaic texture. The specific reversible capacities are greater than 400 mAh/g.

Negative electrode based on pre-lithiated carbonaceous material for a

Active composite and its use as reaction medium

A membrane support usable for separative procedures is disclosed. The support is a mechanically solid composite carbon-carbon material of limited thickness in the passage direction Z of a flow to be treated, which composite has a porous texture appropriate for the membrane, with a fibrous substrate and a porous carbon-containing matrix. To increase the permeability and reduce the roughness of the outer surface of the support to be brought into contact with the membrane, the fibrous substrate is a carbon fibre mat of carbon fibre segments contained in a plane perpendicular to the Z axis and randomly oriented in that plane. Optionally a fraction of the support to be in contact with the membrane contains an inert fine powder dispersion making it possible to adjust the diameter of the pores of the outer face of the support. Also disclosed is a process for the production of this membrane support and its use as a membrane support and as a filtering element without the addition of a membrane.

Porous carbon-carbon composite filtering membrane support with a carbon

A multi-layer material comprises at least two layers of flexible material, including one layer based on electrically conductive, expanded recompressed graphite and another layer based on a metal, wherein the layer of graphite has at least one face thereof covered at every point by a layer of metal and in direct electrical contact with the layer of metal, and wherein the layer of metal is obtained by electrodeposition or by chemical deposit of at least one metal on the layer of graphite in such a way that the layer of metal adheres directly to the layer of graphite and closely matches the micro-relief thereof.

Multi-layer material comprising flexible graphite which is reinforced

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Clichy, France

Michel Moreau