Ifp Energies Nouvelles

Arkema France

Danielle Richard

Catherine Laroche

Morgane Josserand

Ludivine Bouvier

Patrick Briot

Alexandre Nicolaos

Javier Perez-Pellitero

Guillaume Blancke

The invention relates to a pretreatment process for improving the filling of a chamber with solid particles, in which said solid particles are mixed before loading of said solid particles into the chamber with at least one lubricant that is solid at ambient temperature chosen from saturated fatty acids having 14 or more carbon atoms, metal salts of saturated fatty acids having 14 or more carbon atoms, esters of fatty acids having 14 or more carbon atoms, fatty alcohols having 14 or more carbon atoms, linear N-alkanes having 16 or more carbon atoms in solid form, fumaric acid, talc, sodium stearoyl fumarate, the lubricant being introduced at a content of between 0.01% and 1% relative to the total weight of the mixture of solid particles and lubricant. The invention also relates to the use of the process for the pretreatment of particles of adsorbents for the separation of xylenes.

Pretreatment process for improving the filling of a chamber with solid particles

Provided is a hybrid process for producing high-purity para-xylene from a feedstock of aromatic hydrocarbon isomer fractions having 8 carbon atoms, in a liquid phase. The process includes a liquid chromatography separation step and a crystallization step of the para-xylene from the purified stream of para-xylene obtained at the separation step.

Hybrid process for producing high-purity para-xylene with toluene solvent

The invention describes an improved process for deep desulfurization of a gas-oil-type hydrocarbon fraction that comprises a catalytic hydrodesulfurization unit that is preceded by a unit for adsorption of the nitrogen compounds that inhibit the hydrodesulfurization reaction.

Process for desulfurization and denitration of a gas-oil-type hydrocarbon fraction that contains nitrogen compounds

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Lyons, France

Danielle Richard