Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Abdelhakim Koudil

Christophe Boyer

Laurent Bournay

Alexandre Pagot

Julien Grandjean

Romain Rousset

Bertrand Fanget

Joana Fernandes

Nicolas Ferrando

Romain Corroyer

Vincent Coupard

Thierry Gauthier

Ludovic Raynal

Karin Barthelet

Patrick Leroy

Pascal Mougin

P-Louis Carrette

Isabelle Guibard

Franck Gaviot-Blanc

Jean-Pierre Ballaguet

Thiery Gauthier

Thi&eacute;ry Gauthier

Joana Fernandez

The present invention concerns a process for the production of light olefins and BTX using a catalytic cracking unit, NCC, processing a naphtha type feed, and an aromatics complex. It can be used to exploit the synergies between these two units. The thermal balance of the NCC, which is intrinsically deficient in coke, is resolved by the optimal use of heat from the reforming furnaces in order to preheat the feed for the NCC, and by introducing at least a portion of the raffinate obtained from the aromatics complex as a mixture with the naphtha.

Process for the production of light olefins and BTX using a catalytic cracking unit, NCC, processing a naphtha type feed, a catalytic reforming unit and an aromatics complex

The present invention relates to the FCC units processing heavy feedstocks enriched with hydrogen, such as for example a highly hydrotreated VGO, or the unconverted part at the end of hydrocracking this same type of VGO feedstock, feedstocks which have the characteristic of cracking to light olefins such as ethylene and propylene. The integration of an FCC with an aromatic complex allows the recovery by the aromatic complex of the BTX formed in the FCC, and the recovery by the FCC from the flow at the bottom of the column, of heavy aromatics from the aromatic complex.

Process for production of light olefins and BTX using an FCC unit processing a heavy feedstock of the highly hydrotreated VGO type, coupled with a catalytic reforming unit and an aromatic complex processing a naphtha-type 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

A method of monitoring breakthrough of an adsorbent bed consisting for example of ion-exchange resins, used during a stage of purification of an ester stream containing glycerin, obtained for example in a vegetable or animal oil and aliphatic monoalcohol transesterification process, permits the instantaneous detection of the presence of glycerol (glycerin) in the ester stream by arranging a turbidimeter at the adsorbent bed outlet.

Method of monitoring adsorbent bed breakthrough in a process for producing alkyl esters from vegetable or animal oil and from an aliphatic monoalcohol

The present invention describes a method of producing fatty acid alkyl esters and glycerin implementing, in a reaction section, a set of transesterification reactions between a vegetable or animal oil and an aliphatic monoalcohol, and using a heterogeneous solid catalyst, comprising: The supernatant ester phase obtained after decantation is then optionally sent to a coalescer, also allowing separation of the glycerin, then to a purification stage by adsorption on solids. This improved method prevents microemulsion formation.

Separation improvement in a method of producing alkyl esters from vegetable or animal oil and an aliphatic monoalcohol

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

The present invention describes a method of producing fatty acid alkyl esters and glycerin implementing, in a reaction section, a set of transesterification reactions between a vegetable or animal oil and an aliphatic monoalcohol, and using a heterogeneous solid catalyst, comprising: The supernatent ester phase obtained after decantation is then optionally sent to a coalescer, also allowing separation of the glycerin, then to a purification stage by adsorption on solids.

Decantation improvement in a method of producing alkyl esters from vegetable or animal oil and an aliphatic monoalcohol

A process for partial dehydration of a gas by contact with a solvent that can be regenerated by: a) A stage for absorption of HO by contact of the gas to be treated and regenerated solvent producing a dehydrated gas effluent and a liquid solvent effluent that is charged with HO and absorbed gas, b) A stage for cooling the solvent charged with HO at ambient temperature, c) A stage for separation by segregation during which liquid HO and the solvent are separated at ambient temperature, d) A stage in which the regenerated solvent that is obtained at the end of stage c) is heated, e) A stage in which the regenerated and heated solvent that is obtained at the end of stage d) is recycled to the absorption stage a).

Process for partial dehydration of a gas by absorption on a solvent that can be regenerated by segregation at ambient temperature

A process and apparatus for the treatment of a gas that contains hydrogen sulfide and sulfurous anhydride, in which: a) the gas () contacts with an organic solvent () containing a catalyst in a gas-liquid reactor-contactor () so as to recover separately liquid sulfur and; a gas effluent containing sulfur vapor; subjecting the gas effluent to a first condensation zone () operating at 70-100&#xb0; C. to deposit the sulfur in solid form on sufficiently cold walls of the equipment in zone (), recovering resultant purified gas containing less than 30 ppm by volume of sulfur melting the deposited solid sulfur to regenerate the equipment, and recycling resultant liquefied sulfur to the reactor contactor.

Process and device for desulfurization of a gas, comprising a stage for elimination of sulfur by cooling a gas stream

The invention relates to a device for circulation of a gaseous and/or liquid fluid through at least one solid particle bed equipped with at least one bypass means acting on at least one part of said fluid through at least one part of a solid particle bed, said bypass means comprising:

Catalytic fixed-bed reactor comprising bypass means for flows through the bed

The present invention concerns a gas/liquid(s) separation system constituted by three different sections:

Gas/liquid separation system used in a hydrocarbonconversion process

A device suitable for atomization and injection of a hydrocarbon batch into a reaction chamber comprises an admission and mixing chamber () for the liquid hydrocarbon batch introduced into the device by a tube () and for an atomization gas introduced into the device by a cylindrical casing () containing tube (). Casing () is extended by a Venturi tube () which has a convergent part connected upstream to cylindrical casing () and a divergent part connected downstream to a hemispheric tip () that leads, by a rectangular slit with an opening angle () between about 100 and 115 degrees, to the reaction chamber. The device can be used in processes for catalytic cracking of heavy hydrocarbons.

Device for injection of hydrocarbons into a fluidized chamber

A gas/liquid(s) separation system is constituted by three different sections: a primary separator ( ) for flows with a G/L in the range 0.1 to 10; a secondary separator ( ) for flows with a G/L in the range 10 to 50; a system ( ) which limits the formation of a liquid vortex; where G/L is the ratio of the gas to liquid mass flow rates. The separation system is suitable for the separation of gas and liquid from a hydrocarbon conversion process, e.g. a hydrotreatment process.

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Lyons, France

Abdelhakim Koudil