Ifp Energies Nouvelles

Rhodia Chimie

Institut Francais Du Pe'trole

Pierre-Yves Le Goff

Gerard Paul Hotier

Damien Leinekugel Le Cocq

Fabian Lambert

Michel Martin

Thierry Chopin

Sylvie Lacombe

Eric Sanchez

Fabienne Le Peltier

Alexandre Pagot

Frederic Bazer-Bachi

Gérard Papon

Eric Lemaire

Christophe Chau

Gérard Hotier

Fabrice Deleau

Jacques Rault

Philippe Laval

Laurence Stelandre

Michel Foulon

Laurence Ladouce

Jean Giraud

Joana Fernandes

M Gérard Hotier

Christophe Pierre

Method for the simulated moving bed (SMB) separation of a feedstock (F), in which: at least one zone (1, 2, 3, 4) contains fewer than three beds, if the stream (D, E, F, R) delimiting said zone and situated upstream of said zone is injected or withdrawn at the plate Pvia the bypass line L, then the stream delimiting said zone and situated downstream of said zone is injected/withdrawn at the plate Pvia the bypass line L, and if the stream delimiting said zone and situated downstream of said zone is injected or withdrawn at the plate Pvia the bypass line L, then the stream delimiting said zone and situated upstream of said zone is injected/withdrawn at the plate Pvia the bypass line L.

Simulated moving bed separation method and device with reduced number of beds and bypass fluid flow

Method for the simulated moving bed separation of a feedstock (F), in which when a fluid/effluent (feedstock F, desorbent D, extract E, raffinate R) is injected/withdrawn into/from a chosen plate (P) using an external bypass line (L, L) connected to said chosen plate (P), the flow rate within the said external bypass line (L, L) is controlled in such a way that: a major proportion of the fluid/effluent (F, D, E, R) is injected/withdrawn into/from the chosen plate (P); and a minor proportion of the fluid/effluent (F, D, E, R) is injected/withdrawn into/from the adjacent plate (P, P) connected to the said external bypass line (L, L).

Simulated moving bed separation method and device with bypass fluid flow

The present invention describes a type of radial bed reactor which can allow a small quantity of catalyst to be used. Application to a regenerative reforming process reactor.

Radial bed reactor allowing the use of a small quantity of catalyst

The invention relates to a catalyst that comprises a metal M from the group of platinum, at least one promoter Xthat is selected from the group that consists of tin, germanium, and lead, and optionally at least one promoter Xthat is selected from the group that consists of gallium, indium and thallium, a halogenated compound and a porous substrate, in which the atomic ratio X/M and optionally X/M is between 0.3 and 8, the H/M ratio that is measured by hydrogen adsorption is greater than 0.40, and the bimetallicity index BMI that is measured by hydrogen/oxygen titration is greater than 108. The invention also relates to the process for the preparation of this catalyst and a reforming process using said catalyst.

Bimetallic or multi-metallic catalyst that has an optimized bimetallicity index and an optimized hydrogen adsorption capacity

The invention concerns the use as filler, in a polymer composition, of hydrotalcite calcined and/or incorporated with an anionic surfactant. The invention also concerns polymer compositions comprising such filler and finished articles based on said compositions.

Use of hydrotalcite as filler in polymer compositions

The present invention concerns a novel, highly dispersible aluminium hydrate. It also concerns a process for preparing said aluminium hydrate by precipitation of an aluminium hydrate in a reactor with no back-mixing and preparation of said aluminium hydrate in a reactor with back-mixing. Finally, it concerns the use of said hydrate for the preparation of catalysts or catalyst supports.

Dispersible aluminium hydrate, method for preparing same and use for preparing catalysts

The invention concerns the use as filler in a rubber composition based on an elastomer, of a compound consisting of an amorphous aluminum hydroxycarbonate, hydroxyoxycarbonate or oxycarbonate. The invention also concerns rubber compositions comprising such a filler and finished products based on such a composition.

Use of aluminum hydroxycarbonate, hydroxyoxycarbonate or oxycarbonate as filler in a rubber composition

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Paris, France

Pierre-Yves Le Goff