Ifp Energies Nouvelles

Cyprien Charra

Adrien Mekki-Berrada

Vincent Coupard

Frederic Bazer-Bachi

Beatrice Fischer

Jean-Marc Schweitzer

Olivier Thinon

Jeremy Gazarian

Slavik Kasztelan

Jérôme Pigourier

Olivier Cotte

Frederic Favre

Florian Hilly

Frédéric Favre

Frederic Bazer-bachi

The present invention relates to a plant for oligomerizing ethylene to produce oligomerized alpha-olefins, with production of a fouling by-product in the form of a deposit, said plant comprising a reaction section comprising: —a reactor (c) for two-phase gas/liquid or single-phase all-liquid oligomerization proceeding from an optional solvent, an oligomerization catalyst and ethylene, and —cooling means associated with said reactor in the form of at least one cooling circuit external to the reactor and/or in the form of a jacket of the walls of the reactor. Packings are disposed in the reaction section in order to increase the contact surface area per unit volume that is accessible to the deposition of the byproduct.

Ethylene oligomerization plant for producing alpha-olefins

This invention has as its object a method for selective hydrogenation of a feedstock comprising a pyrolysis gasoline carried out in a three-phase reactor.

Method for the selective hydrogenation of a pyrolysis gasoline feedstock with a three-phase reactor

A subject-matter of the invention is a process for the depolymerization of a polyester feedstock comprising opaque PET, the said process comprising at least the stages of conditioning, of depolymerization and of separation of the diol and of separation of the liquid effluent rich in monomers, followed by a decolouration stage.

Process for the depolymerization of a polyester comprising opaque polyethylene terephthalate

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

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Lyons, France

Cyprien Charra