Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Christophe Boyer

Vincent Coupard

Abdelhakim Koudil

Robert Beaumont

Frederic Augier

Elena Sanz

Frederic Bazer-Bachi

Fabrice Giroudiere

Yacine Haroun

Daniel Svezia

Denis Darmancier

Bertrand Fanget

Frédéric Augier

Ludovic Raynal

Quentin Debuisschert

Aziz A Sattar

Robert J Sanger

Jean-Louis Ambrosino

Stephane Bertholin

André Nicolle

Willi Nastoll

Mathieu Pinault

Cecile Plain

Karine Surla

Daniel Gonnet

Isabelle Guibard

Andre Nicolle

Gilles Munier

Thi&eacute;ry Gauthier

Nicolas Marchal

Thiery Gauthier

Stéphane Bertholin

Charly Rogeon

Jijun Xu

Ghislain Bergeot

Jean Calvez

Sylvain Rethore

Yves Pennarguear

Frédéric Bazer-Bachi

Cécile Plain

Adbelhakim Koudil

Kishore Doshi

The present invention describes a device and a method for dense and homogeneous loading of catalyst into the annular space of bayonet tubes employed in a steam reforming reactor, said device employing removable slowing elements.

System for dense loading of catalyst into bayonet tubes for a steam reforming exchanger-reactor using flexible and removable slowing elements

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.

Distributor plate for a gas-liquid mixture, provided with distribution elements having low sensitivity to a lack of horizontality

A device and a method are disclosed for densely and homogeneously loading catalyst into the annular space of bayonet tubes utilized in a steam reforming reactor. The device is of pneumatic type and uses a detachable feed tube for introducing gas into the annular space.

Pneumatic system for densely loading catalyst into bayonet tubes for a steam reforming reactor-exchanger with a detachable feed tube for gas

The present invention describes a device and a method for dense and homogeneous loading of catalyst into the annular space of bayonet tubes employed in a steam reforming reactor, said device being constituted by a series of removable helical elements.

System for dense loading of catalyst into bayonet tubes for a steam reforming exchanger-reactor using removable helical elements

The present invention describes a device and a method for dense and homogeneous loading of catalyst into the annular spaceof bayonet tubes defined by an external tubeand an internal tubeused in a steam reforming reactor, said device using a rigid auxiliary tubefor introducing solid particles into said annular zone

Pneumatic system for dense loading of catalyst into bayonet tubes for a steam reforming exchanger-reactor using an auxiliary tube for introducing solid particles

The present invention describes a device and a method for dense and homogeneous loading of catalyst into the annular space of bayonet tubes employed in a steam reforming reactor, said device being constituted by a series of removable deflectors.

System for dense loading of catalyst into bayonet tubes for a steam reforming exchanger-reactor using removable deflectors

The present invention concerns a plate for distributing a polyphase mixture in a reactor operating in trickle bed mode constituted by at least one gas phase and at least one liquid phase, the plate () being located above a bed of catalytic particles, comprising a plurality of chimneys (), characterized in that a portion of the chimneys of the plate located near to the wall of the chamber of the reactor, those termed the peripheral chimneys, have an upper portion which is inclined at an angle with respect to the vertical. The invention also concerns the use of the plate in a reactor with a view to carrying out hydrotreatment, hydrogenation or oxidation reactions.

Distribution tray for distributing a polyphasic mixture with inclined peripheral conduits

The catalytic reactor consists of a chamber [] that contains at least one catalyst bed [] in solid form, with the reactor being supplied with effluent to be treated by a pipe [] that empties into a separator [] between gas and liquid, with the liquid obtained from the separator being collected in a tank, and a plate [] being arranged between the separator [] and the solid catalyst bed []. The plate [] consists of at least two closed boxes [], with at least two vertical tubes [] provided with openings [] linking with the interiors of the boxes [] passing through the boxes, and with the liquid distributor [] channeling the liquid from the tank into said boxes [

Catalytic reactor with box distribution system

The present invention describes an exchanger-reactor for carrying out endothermic reactions such as steam reforming oil cuts or alcohols integrating a steam generation bundle which can thereby increase the thermal efficiency.

Exchanger-reactor for the production of hydrogen with an integrated steam generation bundle

A plate that allows the distribution of a polyphase mixture in a reactor that operates in the trickle mode and that consists of at least one gaseous phase and at least one liquid phase, with the plate () being located above a catalytic particle bed, comprising a number of shafts (), and a portion of the shafts of the plate, located close to the wall of the reactor chamber, called peripheral shafts, are truncated. The plate is used in a reactor for the purpose of carrying out hydrotreatment, hydrogenation, or oxidation.

Distributor plate for the distribution of a polyphase mixture with periphery-truncated shafts

A process for the production of highly thermally-integrated hydrogen by reforming a hydrocarbon feedstock wherein a stream of air or water, whose temperature is less by at least 200&#xb0; C. than the combustion temperature inside a burner, is mixed with the effluent that is obtained from said burner, so as to reduce the temperature of this effluent to less than 725&#xb0; C.; the mixture obtained is used to superheat at least one stream of water vapor and/or hydrocarbon feedstock in gaseous form, whereby said stream that is thus superheated by indirect heat exchange is injected directly into a reforming reactor where it is used as a fuel; and the second heat exchanger and is used to totally evaporate a stream of liquid water and/or hydrocarbon feedstock.

Process for the production of highly thermally-integrated hydrogen by reforming a hydrocarbon feedstock

The device described in the present invention can trap plugging particles contained in the liquid feed supplying a reactor functioning in gas and liquid co-current down-flow mode using a specific distributor tray comprising a filtration medium. The present device is of particular application to the selective hydrogenation of feeds containing acetylenic and dienic compounds.

Filtration tray for fixed bed reactor with a co-current down-flow of gas and liquid

The device described in the present invention allows pre-distribution of the gas and liquid feed supplying a reactor functioning in gas and liquid co-current downflow mode to be carried out by means of a pre-distribution plate comprising a filtration medium and an overflow tube in order to regulate the flow of liquid arriving on the distributor plate located downstream of said device. More particularly, the present invention is applicable to the selective hydrogenation treatment of feeds containing acetylenic and dienic compounds.

Process and apparatus for filtration and pre-distribution of gas and liquid phases in a down-flow catalytic reactor

A device for mixing and distributing two gases upstream of the catalytic zone of a reactor by producing a homogeneous mixture and a profile of velocities which are as flat as possible. The device uses a plurality of internal chambers (I) enclosed in an external chamber (II), the external chamber communicating with each of the internal chambers via orifices pierced in the wall of said internal chambers (I) at a well-defined height. The external chamber (II) is provided with a perforated plate placed at a distance Hfrom the inlet pipe for said chamber (II). The device is applied to the inlet of an autothermal reactor.

Device for mixing gas and for distributing the resulting mixture to the inlet of a catalytic reactor

A compact device for mixing fluids in a downflow reactor comprising at least one substantially horizontal gathering device provided with a vertical gathering line intended to receive the fluids, at least one injection device arranged in the gathering line, an annular mixing chamber located downstream from the gathering means in the direction of circulation of the fluids, the mixing chamber comprising an inlet end directly connected to the gathering line and an outlet end for passage of the fluids, and a horizontal predistribution plate comprising at least one chimney, the plate being located downstream from the mixing chamber at a distance d, in the direction of circulation of the fluids. The reactor is especially useful for exothermic reactions, e.g. hydrotreatment, hydrodesulfurization, hydrodenitrogenation, hydrocracking, hydrogenation and hydrodearomatization reactions.

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Charly, France

Christophe Boyer