Ifp Energies Nouvelles

Matthieu Dreillard

Thierry Gauthier

Ludovic Raynal

Frederic Bazer-Bachi

Frederic Feugnet

Jean-Francois Le Coz

Joao Marques

Christophe Preux

Anne Claire Pierron

Pierre Louis Carrette

Jean-François Le Coz

Luis Carlos Pereira De Oliveira

Frédéric Feugnet

Frédéric Morel

Etienne Combe-Laboissiere

The invention concerns a method for converting heavy hydrocarbon feedstocks of which at least 50% by weight boils at a temperature of at least 300&#xb0; C., and in particular vacuum residues. The feedstocks are subjected to a first step a) of deep hydroconversion, optionally followed by a step b) of separating a light fraction, and a heavy residual fraction is obtained from step b) of which at least 80% by weight has a boiling temperature of at least 250&#xb0; C. Said fraction from step b) or the effluent from step a) is then subjected to a second step c) of deep hydroconversion. The overall hourly space velocity for steps a) to c) is less than 0.1 h. The effluent from step c) is fractionated to separate a light fraction. The heavy fraction obtained, of which 80% by weight boils at a temperature of at least 300&#xb0; C., is sent to a deasphalting step e). The deasphalted fraction DAO is then preferably converted in a step f) chosen from ebullated bed hydroconversion, fluidised bed catalytic cracking and fixed bed hydrocracking.

Method for converting residues incorporating deep hydroconversion steps and a deasphalting step

The invention is a method for deacidizing a gaseous effluent comprising acid compounds, such as COand/or HS, and a device for implementing the method, through contact with a demixing absorbent solution. Regeneration is performed by vapor injection into the liquid guard () formed by the regenerated absorbent solution in the bottom of regeneration column (G). The vapor is generated within a reboiler () from a fraction of the regenerated absorbent solution withdrawn from the regeneration column. Vapor injection enables convective movement of the liquid for preventing any decantation phenomenon in the bottom of the regeneration column bottom which is harmful to the smooth operation of the deacidizing process.

Method of deacidizing a gaseous effluent by an absorbent solution with vapor injection into the regenerated absorbent solution and device for implementing same

Process for hydrotreatment of hydrocarbon-containing feedstock comprising sulphur- and nitrogen-containing compounds, comprising:

Process for the hydrotreatment of a gas oil in a series of reactors with recycling of hydrogen

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Lyons, France

Matthieu Dreillard