Ifp Energies Nouvelles

Axens

Frederic Bazer-Bachi

Frederic Augier

Yacine Haroun

Cecile Plais

Eric Sanchez

Christophe Boyer

Eric Lemaire

Fabian Lambert

Philippe Beard

Alexandre Pagot

Beatrice Fischer

Mathieu Digne

Fabrice Deleau

Gilles Ferschneider

Jauffray Salvatore Delteil

Vincent Coupard

Damien Leinekugel Le Cocq

Thierry Chapus

Wilfried Weiss

Gérard Papon

Jerome Bonnardot

Jan Verstraete

Xavier Decoodt

Pierre-Yves Le Goff

Elodie Tellier

Anne Claire Pierron

Sebastien Boucher

Cyprien Charra

Stéphane Fedou

Cecile Plain

Matthieu Dreillard

Adrien Mekki-Berrada

Isabelle Guibard

Yves Scharff

Florian Hilly

Luis Carlos Pereira De Oliveira

Charly Rogeon

Nicolas Marchal

Younes Aiddouch

Octavio Carvalho

Jauffray Delteil

Stephane Fedou

The invention relates to a device for the upflow of a single-phase fluid comprising at least two beds of solid particles and at least one bypass means for a portion of said fluid, and also to the use thereof.

Anti-clogging device for the upflow of a fluid

The present invention concerns a device for filtration and distribution of a gaseous phase and a liquid phase, which can be disposed upstream of a fixed catalytic bed of a reactor operating with a descending co-current of gas and liquid, comprising: Each basket is provided support means cooperating with a riser of the plate in order to support the basket.

Filtering and distribution device for catalytic reactor

A device for mixing fluids for a downflow catalytic reactor (), having

Compact device for mixing fluids

This invention describes a moving-bed catalyst reactor having radial flow of the feedstock called moving-bed radial reactor, consisting of 3 zones called upper hemispheric body (III), lateral zone (II), and lower hemispheric body (I), the three zones being connected together by means of flanges.

Reduced-capacity moving-bed reactor with radial flow of the feedstock

The present invention describes a device for supplying the catalytic zone of a reactive distillation column using a liquid stream as the reaction stream, the flow of liquid in the reactive zone being of the upflow type and gas not encountering the liquid in the reactive zone.

Device for distributing gas and liquid in catalytic distillation columns

The invention concerns a collector assembly () for a gaseous fluid suitable for being disposed in a reaction section with a moving bed of catalyst of a radial reactor. The collector assembly comprises a vertical cylindrical screen (), permeable to gas and impermeable to particles of catalyst, and a vertical cylindrical tube () which is supported by this screen () and disposed in a concentric manner with respect to the screen. The tube () comprises one or more zones () which are permeable to gaseous fluid, comprising a plurality of through holes and a plurality of zones () with a reduced permeability to gaseous fluid compared with the permeable zone. Each zone with a reduced permeability has a porosity, defined as the ratio between total permeable surface area of the zone and total developed surface area of this zone, in the range 0 to 0.005.

Collector assembly for a gaseous fluid for a radial reactor

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

A process for the hydrotreatment of a feed obtained from renewable sources in which the total stream of feed F is divided into a number of different part-streams of feed F1 to Fn equal to the number of catalytic zones n, where n is 1 to 10. The mass flow rate of hydrogen sent to the first catalytic zone represents more than 80% by weight of the total mass flow rate of hydrogen used. The effluent from the reactor outlet undergoes at least one separation step. A portion of the liquid fraction is recycled to the catalytic zones in a manner such that the local recycle ratio for each of the beds is 2 or less, and the local dilution ratio over each of the beds is less than 4.

Process for the hydrotreatment of renewable materials, with an optimized gas recycle

Process for hydrotreatment of hydrocarbon-containing feedstock comprising sulphur- and nitrogen-containing compounds, comprising:

Process for the hydrotreatment of a gas oil in a series of reactors with recycling of hydrogen

Device for the mixing and distribution of fluids for a catalytic reactor with a downward flow, said device comprising a collection zone (A), a mixing zone (B) and a distribution zone (C) comprising a distribution plate () comprising at least one first zone (C) supporting a plurality of chimneys () and a second zone (C); said mixing zone (B) is comprised in an annular enclosure () situated in the distribution zone (C), said mixing (B) and distribution (C) zones being delimited by at least one annular wall () comprising at least one lateral passage section (,) suitable for the passage of the fluids from said mixing zone (B) to the first zone (C) of said distribution zone (C), and the second zone (C) comprises a plurality of openings () suitable for the partial passage of the fluids out of the distribution zone (C).

Mixing and distribution device comprising a distribution plate with peripheral openings

The present invention relates to a process for the selective hydrogenation of a feed of hydrocarbons containing polyunsaturated molecules comprising at least 3 carbon atoms, using a single principal fixed bed reactor Rcontaining at least two catalytic beds Aand Aand a fixed bed guard reactor which is reduced in size, said hydrogenation reactors being disposed in series for use in a cyclic manner in accordance with a sequence of steps which can be used to short-circuit the catalytic bed or beds of the principal reactor which have been at least partially deactivated with the aid of the guard reactor, while ensuring the continuous operation of the process.

Process for the selective hydrogenation of olefinic feeds with a single principal reactor and a guard reactor of reduced size

Device for the mixing and distribution of fluids for a catalytic reactor with a downward flow, said device comprising at least one collection zone (A), at least one mixing zone (B) comprising at least one enclosure () for the mixing of the fluids, at least one distribution zone (C), characterized in that said mixing zone (B) is situated at the same level as the distribution zone (C) and also comprises at least one enclosure () for the exchange of the fluids, connected to, and communicating with, said mixing enclosure (), said exchange enclosure () comprising at least one lateral passage section () suitable for the passage of the fluids from said exchange enclosure () to said distribution zone (C).

Mixing and distribution device with mixing and exchange zones

The present invention concerns a moving bed catalyst regenerator () comprising a vessel () extending in a vertical direction, said vessel being divided into at least two regeneration zones extending along the vertical height of said vessel, in which particles of catalyst move under gravity, the regenerator being configured such that each regeneration zone is capable of separately regenerating a different composition of catalyst and in which each regeneration zone comprises, in succession and in the order in which the catalysts move:

Regenerator for catalysts

The present invention concerns a moving bed catalyst regenerator () comprising a vessel () extending in a vertical direction, said vessel being divided into at least two regeneration zones extending along the vertical height of said vessel, in which particles of catalyst move under gravity, in which each regeneration zone comprises, in succession and in the order in which the catalysts move:

Regenerator for regenerating catalysts under different operating conditions

The present invention describes a distributor plate provided with distribution elements having low sensitivity to a lack of horizontality, a distribution element being constituted by two substantially co-axial cylinders termed the inner cylinder () and the outer cylinder, the lower horizontal surface () separating the two cylinders being closed. The distributor plate is suitable for co-current downflows of gas and liquid, more particularly in 'trickle bed' mode. The invention also concerns the application of the distributor plate to processes for the hydrotreatment or hydrogenation of various oil cuts.

Growing community of inventors

Irigny, France

Frederic Bazer-Bachi