Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Total Sa

Snecma Propulsion Solide

Safran Ceramics

Herakles

Ludovic Raynal

Pascal Alix

Thierry Gauthier

Alexandre Vonner

Benjamin Amblard

Ann Cloupet

Isabelle Harter

Rim Brahem

Francis Aubry

Raphael Gonnot

Anne-Claire Lucquin

Mickael Mejean

Bruno Delfort

Frederic Augier

Sylvie Lacombe

Christophe Boyer

Marc Jacquin

Yacine Haroun

Jean-Pierre Maumus

Abdelhakim Koudil

Eric Lemaire

Patrick Leroy

Bogdan Harbuzaru

Jean-Francois Le Coz

Pierre-Louis Carrette

Jean-Louis Ambrosino

Pierre-Antoine Bouillon

Sophie Drozdz

Bertrand Fanget

Sina Tebianian

Pedro Maximiano Raimundo

Philippe Pagnier

Matthieu Dreillard

Rémi Bessettes

Charles Dumont

Viep Hoang Dinh

Viep Hoang-Dinh

Bénédicte Chommeloux

Yacine Horoun

Yozika Glavan Moreno

Remi Bessettes

Raphaël Gonnot

Pierre Louis Carrette

The present invention relates to a gas/liquid reactor for the oligomerization of gaseous ethylene, comprising a gaseous ethylene injection device and a liquid injection device, said injection devices advantageously being arranged so that the injection of the liquid can bring about a reduction, by shear, of the size of the ethylene bubbles, during the injection of the gaseous ethylene. The gas/liquid reactor according to the present invention may be used for any gaseous olefinic feedstock injected into a liquid phase.

Method for oligomerization in a reactor comprising a gas/liquid double distributor

The present invention relates to a process for the oligomerization of C2 to C4 olefin(s) in a gas/liquid or all-liquid oligomerization reactor (c) using a solvent, an oligomerization catalyst and olefin(s), in which compression and premixing are performed between a liquid phase comprising the solvent and a gaseous phase comprising said gaseous olefin(s) by a multiphase pump (b), with partial or total dissolution of the olefin(s) of the gaseous phase in the liquid phase and/or premixing between the two phases, before introduction of the premix obtained into said reactor.

Method for oligomerising olefins in an olifomerisation reactor

The present invention relates to a device and to a process for the fluidized bed catalytic cracking of a hydrocarbon feedstock, in which: a first feedstock () is cracked in a dense fluidized bed reactor () in the presence of a catalyst () to produce a first effluent; and at least one second feedstock () is cracked in a transport fluidized bed reactor () in the presence of the catalyst () supplied by the dense fluidized bed reactor () to produce a second effluent, the second feedstock () being a heavier feedstock than the first feedstock ().

Conversion of a crude oil in a fluidized bed comprising zones with different contact times

The present invention relates to the field of gas/liquid reactors permitting the oligomerization of olefins to give linear olefins by homogeneous catalysis, comprising a reaction chamber and vertical internal means of compartmentalization.

Compartmentalized oligomerization reactor

The present invention relates to an oligomerization process using a reaction device comprising a dispersion means. In particular, the process relates to the oligomerization of ethylene to give linear &#x3b1;-olefins, such as 1-butene, 1-hexene or 1-octene, or a mixture of linear alpha-olefins.

Oligomerization method using a reaction device comprising a dispersion means

The present invention describes a packing with a three-dimensional structure which is particularly suited to creating homogenous and anisotropic mixing between the gas phase and a dispersed solid phase moving in counter-current flow. Application of this packing to the stripper of fluidized catalytic cracking units.

Three dimensional structured packing for improving the contact between a gas phase and a dispersed solid phase following in counter-current

The present invention describes a packing with a three-dimensional structure which is particularly suited to creating homogenous and anisotropic mixing between a gas phase and a dispersed solid phase moving in counter-current flow. Application of this packing to the stripper of fluidized catalytic cracking units.

Packing for improving contact between a gas phase and a dispersed solid phase moving in counter-current flow

The invention relates to a process for the catalytic cracking of a gasoline feedstock for the production of light olefins, in which said gasoline feedstock is brought into contact with a catalyst comprising at least one zeolite NU-86, alone or in a mixture with at least one other zeolite, at a temperature comprised between 500 and 700&#xb0; C., at an absolute pressure comprised between 10 and 60 MPa, and with a contact time of the feedstock on said catalyst comprised between 10 milliseconds and 100 seconds.

Use of zeolite NU-86 for naphtha catalytic cracking

Device for distributing a light fluid phase () in a heavy phase () in the fluidized state in a reaction chamber (), comprising: a pipe () for transporting the light fluid phase; first and second windows () created in the pipe, the second windows opening into the reaction chamber; and branches () extending each first window and splitting into: a central passage opening into the reaction chamber via an intermediate window () created in the upper wall of the branch (); and at least two distinct lateral branches forming two lateral passages () opening into the reaction chamber via end-of-branch windows ().

Device for distributing a polyphase mixture in a chamber containing a fluidized medium

The invention is a method for deacidizing a gaseous effluent comprising acid compounds, such as COand/or HS, and a device for implementing the method, through contact with a demixing absorbent solution. Regeneration is performed by vapor injection into the liquid guard () formed by the regenerated absorbent solution in the bottom of regeneration column (G). The vapor is generated within a reboiler () from a fraction of the regenerated absorbent solution withdrawn from the regeneration column. Vapor injection enables convective movement of the liquid for preventing any decantation phenomenon in the bottom of the regeneration column bottom which is harmful to the smooth operation of the deacidizing process.

Method of deacidizing a gaseous effluent by an absorbent solution with vapor injection into the regenerated absorbent solution and device for implementing same

The invention is a distributor tray for a column () for heating and/or material exchange between a gas (G) and a liquid (L). At least one wall () defines compartments () on one of the surfaces of the tray. The walls are perforated () to allow part of the liquid to flow between compartments (). Each compartment has a passage providing flow of the liquid through the tray and for a passage providing flow of the gas through the tray. The invention also relates to a gas/liquid contact column, a gas treatment unit, a COcapture unit, a distillation unit, and an offshore floating barge including the distributor tray. The invention also relates to a method of manufacturing the tray.

Partitioned distributor tray for offshore gas/liquid contact column

The packing includes a pile of plates having corrugations forming a succession of positive and negative edges, each edge comprising fins, each fin being made up of at least one band cut out in one of the plates and remaining secured to the plate on at least one side, the band being deformed so as to create an orifice forming a discontinuity on the surface of the plate, wherein the direction of the edges of a plate forms a non-zero angle with respect to the direction of the edges of an adjacent plate. Each plate has at least one longitudinal zone parallel to one lip of the plate where the edges have no orifice, the zones being positioned in such a way that two adjacent plates have their zone one above the other so as to form at least one point of contact between a positive edge and a negative edge of the two adjacent plates.

High-performance structured packing for a fluid contacting column

The packing includes a pile of plates having corrugations forming a succession of channels comprising fins, each fin being made up of at least one band cut out in one of the plates and remaining secured to the plate on at least one side, the band being deformed so as to create an orifice forming a discontinuity on the surface of the plate, wherein the direction of the channels of a plate forms a non-zero angle with respect to the direction of the edges of an adjacent plate. Finally, the lengths of the fins of a channel are different from those of the fins of a neighboring channel.

The invention is a distributor tray for a column () for heat and/or material exchange between a gas (G) and a liquid (L), comprising at least one means providing passage of the gas through the tray (). The means has at least one chimney (), defining on the surface of the tray () compartments () of substantially identical surface areas. Each compartment comprises at least one means () allowing passage of the liquid through the tray (). The invention also has application to a gas/liquid contact column, a gas treatment unit, a COcapture unit, a distillation unit, an offshore floating barge comprising such a distributor tray and a method of manufacturing the tray.

Distributor tray for offshore gas/liquid contact column

The gas-liquid contact column comprises at least an upper trayand a lower tray, as well as a downcomerfor sending the liquid from the upper tray to the lower tray. The trays comprise gas ports. A packingis arranged between the upper tray and the lower tray. The upper tray comprises meansfor withdrawing liquid from the upper tray, the liquid withdrawn being distributed over the packing. The gas-liquid contact column is particularly well suited for absorption of the COand of the HS contained in a natural gas or in a syngas, and for capture of the COcontained in combustion fumes.

Gas-liquid contact column and method using a combination of trays and packings

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Oullins, France

Ludovic Raynal