Abstract: A regenerable system for filtration of microfibres contained in a liquid effluent from a textile treatment device comprises at least one enclosure (10) in which a granular medium (30) is arranged, means (100) for passage by percolation of the liquid effluent through the granular medium, means (110) for discharging the liquid effluent under granular medium (30), and means (120) for connection to means for regeneration by fluidization of granular medium (30). A method for filtering microfibres contained in a liquid effluent from a textile treatment device can be implemented by means of such a system.

Abstract: 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° 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° 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?1. 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° C., is sent to a deasphalting step e).

Abstract: 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° 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° 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?1. 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° C., is sent to a deasphalting step e).

Abstract: The invention concerns a process for the hydrotreatment of a heavy oil feed in at least one reactor containing a fixed bed catalyst, in which a solution containing a dispersed catalyst or a precursor of a dispersed catalyst is continuously introduced into said reactor, the particle size of said dispersed catalyst being in the range 1 nm to 100 ?m. More particularly, the invention concerns the in situ formation of a catalyst for a hydrotreatment process starting from a fixed bed catalyst which captures a dispersed catalyst on its solid support.

Abstract: The invention is a method for deacidizing a gaseous effluent comprising acid compounds, such as CO2 and/or H2S, and a device for implementing the method, through contact with a demixing absorbent solution. Regeneration is performed by vapor injection into the liquid guard (202) formed by the regenerated absorbent solution in the bottom of regeneration column (G). The vapor is generated within a reboiler (203) 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.

Abstract: Process for hydrotreatment of hydrocarbon-containing feedstock comprising sulphur- and nitrogen-containing compounds, comprising: a) separating the feedstock into heavy and light fractions, b) a first hydrotreatment stage wherein the heavy fraction and hydrogen are contacted with a first hydrotreatment catalyst Z1 to produce a first desulphurized effluent, c) separating the first effluent into a first gaseous fraction and a first liquid fraction, d) purifying the first gaseous fraction to produce a hydrogen-rich flow, e) mixing the light fraction with the first liquid fraction to produce a mixture, f) a second hydrotreatment stage wherein the mixture from stage e) and the hydrogen-rich flow from stage d) are contacted with a second hydrotreatment catalyst Z2 to produce a second desulphurized effluent, g) separating the second effluent into a second gaseous fraction and a second liquid fraction, h) recycling at least part of the second gaseous fraction to b) as a flow of hydrogen.

Abstract: The invention concerns a process for the conversion of a heavy hydrocarbon feed, said process comprising the following steps: a) a step for hydroconversion of the heavy hydrocarbon feed in the presence of hydrogen in at least one or more three-phase reactors disposed in series or in parallel, containing at least one hydroconversion catalyst, so as to obtain a liquid effluent with a reduced Conradson carbon, metals, sulphur and nitrogen content, b) one or more optional steps for separating the effluent obtained from step a) in order to obtain at least one light liquid fraction boiling at a temperature of less than 350° C. and a heavy liquid fraction boiling at a temperature of more than 350° C.

Abstract: Process for hydrotreatment of hydrocarbon-containing feedstock comprising sulphur- and nitrogen-containing compounds, comprising: a) separating the feedstock into heavy and light fractions, b) a first hydrotreatment stage wherein the heavy fraction and hydrogen are contacted with a first hydrotreatment catalyst Z1 to produce a first desulphurized effluent, c) separating the first effluent into a first gaseous fraction and a first liquid fraction, d) purifying the first gaseous fraction to produce a hydrogen-rich flow, e) mixing the light fraction with the first liquid fraction to produce a mixture, f) a second hydrotreatment stage wherein the mixture from stage e) and the hydrogen-rich flow from stage d) are contacted with a second hydrotreatment catalyst Z2 to produce a second desulphurized effluent, g) separating the second effluent into a second gaseous fraction and a second liquid fraction, h) recycling at least part of the second gaseous fraction to b) as a flow of hydrogen.

Abstract: The invention is a method for deacidizing a gaseous effluent comprising acid compounds, such as CO2 and/or H2S, and a device for implementing the method, through contact with a demixing absorbent solution. Regeneration is performed by vapor injection into the liquid guard (202) formed by the regenerated absorbent solution in the bottom of regeneration column (G). The vapor is generated within a reboiler (203) 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.