Axens

Exxonmobil Chemical Patents Inc.

Ifp Energies Nouvelles

Jerome Pigourier

Isabelle Prevost

Pierre-Yves Martin

Laurent Watripont

Michel Molinier

Chunshe J Cao

Xiaobo Zheng

Kevin J Knob

Dennis J Stanley

Jacques Rault

Thierry Leflour

Terri S Vander Pol

Stephane Claudel

Celia Fernandez

Gerard Paul Hotier

Lionel Magna

Laurent Bournay

Jerome Bonnardot

Jean-Alain Chodorge

Catherine Boutrot

Jacinthe Frecon

Nicolas Pupat

Nicolas Lambert

Odile Lajeunesse

Arnaud Cotte

Frederic Favre

Daniel-Jean Vinel

Alexis Paillier

Isabell Prevost

Daniel Jean Vinel

Etienne Niderkorn

Xavier Liege

Nicolas Janot

A process for hydrocracking a petroleum feedstock involves:

Hydrocracking process

The present invention describes a process for obtaining para-xylene from a feedstock containing xylenes, ethylbenzene and C9+ hydrocarbons, said process comprising

Method for producing paraxylene using a simulated moving-bed step, and a step of fractionating two fractions in a two-section column

The present invention relates to a process for producing high-purity para-xylene, comprising a single step of separation by adsorption in an SMB, with a subsequent step of separation by distillation in a first three-fraction distillation column producing at least two raffinates and optionally of two isomerization steps, making it possible to improve the overall para-xylene yield of the aromatic loop and to minimize the economic impact.

Process for producing para-xylene using a step in a simulated moving bed and a step of fractionation via a three-fraction column

An installation and a process which jointly implement compression of acid gases from a hydroconversion or hydrotreatment unit and gaseous effluents from a catalytic cracking unit.

Installation and process for jointly implementing compression of the acid gases from the hydroconversion or hydrotreatment unit and that of the gaseous effluents from the catalytic cracking unit

The invention concerns a process for the oligomerization of ethylene into alpha-olefins, comprising a step for the oligomerization of ethylene, a step for deactivation of the catalyst, a and step for separation of the products, the reactor being provided with a cooling loop () by means of which at least a portion of the reaction effluent is moved through at least two switchable heat exchangers, said heat exchangers being cleaned alternately by means of an integrated cleaning device.

Process for the oligomerization of olefins employing a cleaning device

The present invention describes a process for the isomerization of a light naphtha with a view to forming high octane number gasolines, said process using a deisopentanizer and a deisohexanizer which are thermally integrated in a manner such as to reduce the consumption of the high temperature utilities employed in the process.

Naphtha isomerization process comprising two thermally integrated steps

The present invention describes a process for the production of high octane number gasoline by isomerization of a light naphtha cut, comprising two separation steps located downstream of the reaction step which can be used to improve the energy efficiency of said process.

Gasoline production process comprising an isomerization step followed by at least two separation steps

In a process for producing para-xylene, at least one feed comprising Caromatic hydrocarbons is supplied to a dividing wall distillation column to separate the feed into a Caromatic hydrocarbon-containing stream, a Caromatic hydrocarbon-containing stream and a Caromatic hydrocarbon-containing stream. At least part of the Caromatic hydrocarbon-containing stream is then supplied to a para-xylene recovery unit to recover para-xylene from the Caromatic hydrocarbon-containing stream and produce a para-xylene depleted stream. The para-xylene depleted stream is contacted with a xylene isomerization catalyst in a xylene isomerization zone under conditions effective to isomerize xylenes in the para-xylene depleted stream and produce an isomerized stream, which is then at least partially recycled to the para-xylene recovery unit.

Aromatics production process

A process for the isomerization of a feed of hydrocarbon compounds containing Cand/or C hydrocarbon compounds, comprising: a) supplying an isomerization unit with at least one liquid fraction of the feed of hydrocarbon compounds and isomerizing the feed in the presence of a chlorinated catalyst; b) supplying a stabilization unit containing at least one stabilization column with the effluent obtained from the isomerization unit and separating the effluent; c) providing an absorption unit having one absorption column; d) extracting a liquid flow enriched in chlorinated compounds from the absorption unit which is recycled to the isomerization unit; and e) extracting the liquid flow containing at least one isomerate from the stabilization unit.

Process for the isomerization of C5/C6 hydrocarbon cuts with chlorinated compound recycling

A process for recovering 1-hexene comprising: a) separating the mixture obtained from the ethylene trimerization reaction into a top fraction comprising ethylene and a bottom fraction, b) separating a portion of the bottom fraction obtained from step a) into a top fraction comprising 1-hexene and 1-butene and a bottom fraction, c) separating a portion of the fraction comprising 1-hexene and 1-butene obtained from step b) into a top fraction principally comprising 1-butene and into a bottom fraction principally comprising 1-hexene, and in said process: a portion of the bottom fraction obtained from step b) is returned to the reaction section and another portion of said bottom fraction obtained from step b) is used in a recirculation loop connecting the reaction section and the column of said step b), said recirculation loop being used to cool the reaction section and to reboil said column of step b).

Process for separating 1-hexene from a mixture of products obtained from an ethylene trimerization zone

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Meudon, France

Jerome Pigourier