Abstract: 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.

Abstract: The present invention relates to a gas/liquid reactor for the oligomerization of gaseous ethylene, comprising a central pipe which delimits inside the reactor chamber a central zone allowing a descending flow and an outer zone allowing an ascending flow, thus making it possible to increase the time of travel of the injected gas bubbles in the liquid phase, without increasing the volume of the liquid phase and thus the volume of the reactor.

Abstract: 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.

Abstract: 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 (2) is cracked in a dense fluidized bed reactor (1) in the presence of a catalyst (3) to produce a first effluent; and at least one second feedstock (10) is cracked in a transport fluidized bed reactor (4) in the presence of the catalyst (3) supplied by the dense fluidized bed reactor (1) to produce a second effluent, the second feedstock (10) being a heavier feedstock than the first feedstock (2).

Abstract: 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.

Abstract: 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.

Abstract: 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 (2) is cracked in a dense fluidized bed reactor (1) in the presence of a catalyst (3) to produce a first effluent; and at least one second feedstock (10) is cracked in a transport fluidized bed reactor (4) in the presence of the catalyst (3) supplied by the dense fluidized bed reactor (1) to produce a second effluent, the second feedstock (10) being a heavier feedstock than the first feedstock (2).

Abstract: 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 ?-olefins, such as 1-butene, 1-hexene or 1-octene, or a mixture of linear alpha-olefins.

Abstract: 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.

Abstract: 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.

Abstract: 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 ?-olefins, such as 1-butene, 1-hexene or 1-octene, or a mixture of linear alpha-olefins.

Abstract: 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.

Abstract: The present invention relates to a process for fluid catalytic cracking of a feedstock comprising a light tight oil and at least one conventional feedstock in order to produce an effluent, in which the feedstock has a content of light tight oil so that the density of the feedstock is between 0.84 and 0.91.

Abstract: 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° 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.

Abstract: 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.

Abstract: 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.

Abstract: Device for distributing a light fluid phase (2) in a heavy phase (4) in the fluidized state in a reaction chamber (5), comprising: a pipe (1) for transporting the light fluid phase; first and second windows (7, 8) created in the pipe, the second windows opening into the reaction chamber; and branches (6) extending each first window and splitting into: a central passage opening into the reaction chamber via an intermediate window (9) created in the upper wall of the branch (6); and at least two distinct lateral branches forming two lateral passages (10) opening into the reaction chamber via end-of-branch windows (11).

Abstract: Device for distributing a light fluid phase (2) in a heavy phase (4) in the fluidized state in a reaction chamber (5), comprising: a pipe (1) for transporting the light fluid phase; first and second windows (7, 8) created in the pipe, the second windows opening into the reaction chamber; and branches (6) extending each first window and splitting into: a central passage opening into the reaction chamber via an intermediate window (9) created in the upper wall of the branch (6); and at least two distinct lateral branches forming two lateral passages (10) opening into the reaction chamber via end-of-branch windows (11).

Abstract: The present invention describes a turbulent fluidized bed reactor having a diameter of between 6 and 25 meters and an H/D ratio of between 0.1 and 1, and exhibiting a compartmentation with a central zone, this reactor been particularly well suited to the catalytic cracking of light cuts for the purpose of producing major intermediates of petrochemistry and in particular light olefins.

Abstract: 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° 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.