Ifp Energies Nouvelles

Philibert LeFlaive

Julien Gornay

Gerard Paul Hotier

Damien Leinekugel Le Cocq

Annick Pucci

Antoine Daudin

Elodie Devers

Xavier Decoodt

Olivier Touzalin

The present application concerns a process for the treatment of a gasoline containing sulphur-containing compounds and olefins, with the following steps:

Process for producing a gasoline with a low sulphur and mercaptans content

The present application relates to a process for the selective hydrogenation of a gasoline which contains polyunsaturated compounds and sulphurous light compounds, the process allowing conjointly the hydrogenation of polyunsaturated compounds into mono-unsaturated compounds, increasing weight of the sulphurous light compounds by reaction with the unsaturated compounds, and maximization of the isomerization of the monounsaturated compounds comprising an external C&#x2550;C double bond into their internal C&#x2550;C double bond isomer, said process implementing a catalyst containing at least one group VIb metal and at least one group VIII metal deposited on a porous support.

Process for the selective hydrogenation of a gasoline

A process for separating a feed F by simulated moving bed adsorption in a SMB device is described, the device comprising external bypass lines Lwhich directly connect two successive plates P, P, the index i being either even or (exclusive of the foregoing) odd, along the whole length of the column, in order to flush said plates, in which each of the bypass lines Lcomprises automated means for regulating the flow rate in the bypass lines, the degree of opening of said regulating means being defined by the following three rules:

Process and apparatus for simulated moving bed separation comprising bypass lines in every other bed and with a modulated bypass fluid flow rate

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Le Domaine de Chanteclair, France

Philibert LeFlaive