Abstract: Elimination of mercury contained in a hydrocarbon feed by: a) feed 1 is mixed with a hydrogen stream 14 and a gaseous fraction 13 originating from c), b) mixture 1a contacted with a catalyst to convert mercury compounds to elemental mercury producing an effluent containing elemental mercury 6, c) effluent containing elemental mercury is cooled to between 20° C. and 80° C., then, at 1.5 MPa and 3.5 MPa and between 20° C. and 80° C., separation 10 of said effluent containing the elemental mercury into a gaseous fraction 11 and a liquid fraction 15, at least a part of said gaseous fraction 11 being recycled to step a), d) fractionation 20 of liquid fraction 15 to produce a gaseous phase 42 and a liquid phase 21, and e) contacting at least a part of gaseous phase 42 with a mercury collection material 43.

Abstract: The present application concerns a process for the treatment of a gasoline containing sulphur-containing compounds and olefins, with the following steps: a) a step for hydrodesulphurization of said gasoline in order to produce an effluent which is depleted in sulphur by passing the gasoline mixed with hydrogen over at least one hydrodesulphurization catalyst; b) a step for separating the partially desulphurized gasoline from the hydrogen introduced in excess as well as the H2S formed during step a); c) a catalytic step for sweetening desulphurized gasoline obtained from step b), which converts residual mercaptans into thioethers via an addition reaction with the olefins.

Abstract: The invention concerns a process for eliminating arsenic from a hydrocarbon feed which is at least partially liquid, comprising at least the following steps: a) bringing the hydrocarbon feed and hydrogen into contact with a first capture mass comprising a support and at least one metal M1 from group VIB and at least two metals M2 and M3 from group VIII; b) bringing the hydrocarbon feed and hydrogen into contact with a second capture mass in the sulphide form comprising a support and nickel, the quantity of nickel being at least 5% by weight of NiO with respect to the total weight of the second capture mass, in which step a) is either carried out before step b) or carried out simultaneously with step b).

Abstract: Process for the production of high-quality kerosene and diesel fuels and for the coproduction of hydrogen from a so-called light naphtha cut to which any quantity of LPG cut can be added where the steps of the process include: separating normal and iso-paraffins, dehydrogenation of the paraffins, oligomerization of the olefins and hydrogenation of the oligomerized olefins, the process permitting the production of kerosene and diesel fuels meeting market specifications, or even improved relative to the latter.

Abstract: Process for the production of kerosene and diesel fuels from a so-called light cracked naphtha fraction, to which can be added any quantity of an LPG fraction and a BTX-rich aromatic fraction and which uses a stage for oligomerization of olefins and alkylation of olefins on the aromatic compounds.

Abstract: The invention relates to a treatment process of a sulphur-containing hydrocarbon fraction, comprising the following steps: a) a hydrodesulphurization step of said hydrocarbon fraction to produce a sulphur-depleted effluent, consisting of passing the hydrocarbon fraction mixed with hydrogen over at least one hydrodesulphurization catalyst. b) a step of separation of the partially desulphurized hydrocarbon fraction from the hydrogen introduced in excess, as well as the H2S formed in step a). c) a step of collecting both mercaptans and thiophenic compounds, consisting of placing the partially desulphurized hydrocarbon fraction originating in step b) in contact with an adsorbent comprising at least one element chosen from the group constituted by the elements of groups VIII, IB, IIB and IVA, the adsorbent being used in reduced form in the absence of hydrogen at a temperature above 40° C., the metal content in the reduced form of the adsorbent being above 25% by weight.

Abstract: The present invention relates to a method for treating a feed corresponding to a pyrolysis gasoline, comprising: a) at least one stage of selective hydrogenation of the feed, referred to as HD1, b) fractionating in one or more distillation columns the effluent from stage a) in order to produce at least one light C5 cut, an intermediate C6 or C6-C7 or C6-C8 cut intended for aromatics production, a heavy C7+ or C8+ or C9+ cut intended for gasoline production, c) at least one stage of hydrodesulfurization and deep hydrogenation of the intermediate cut, referred to as HD2, d) at least one stage of alkylation of the heavy C7+, C8+ or C9+ cut consisting of a treatment on an acid catalyst allowing weighting of the sulfur compounds, e) at least one stage of distillation of the effluent from stage d), intended to produce a light fraction that can be directly used as a low-sulfur gasoline base, and a heavy C11+ or C12+ fraction rich in sulfur compounds, used as middle distillate or fuel oil.

Abstract: Process mainly for the production of high-quality kerosene and diesel fuels and for the coproduction of hydrogen from a so-called light naphtha cut to which any quantity of LPG cut can be added, employing the following successive stages: dehydrogenation of the paraffins, oligomerization of the olefins and hydrogenation of the oligomerized olefins, the process permitting the production of kerosene and diesel fuels meeting market specifications, or even improved relative to the latter.

Abstract: The invention concerns a process for the hydrodesulphurization of gasoline cuts for the production of gasolines with a low sulphur and mercaptans content. Said process comprises at least two hydrodesulphurization steps, HDS1 and HDS2, operated in parallel on two distinct cuts of the gasoline constituting the feed. The flow rate of hydrogen in the hydrodesulphurization step HDS2 is such that the ratio between the flow rate of hydrogen and the flow rate of feed to be treated is less than 80% of the ratio of the flow rates used to desulphurize in the hydrodesulphurization step HDS1.

Abstract: The invention concerns a process for producing gasoline with a low sulphur content and a controlled olefins content, comprising a step for oligomerizing an olefinic feed (step i), a step ii) consisting of mixing the branched olefinic gasoline produced in step i) with a gasoline rich in sulphur and olefins, a step iii) for hydrodesulphurization of said mixture, and separating the H2S formed (step iv)).

Abstract: The present invention relates to a method for treating a feed corresponding to a pyrolysis gasoline, comprising: a) at least one stage of selective hydrogenation of the feed, referred to as HD1, b) fractionating in one or more distillation columns the effluent from stage a) in order to produce at least one light C5 cut, an intermediate C6 or C6-C7 or C6-C8 cut intended for aromatics production, a heavy C7+ or C8+ or C9+ cut intended for gasoline production, c) at least one stage of hydrodesulfurization and deep hydrogenation of the intermediate cut, referred to as HD2, d) at least one stage of alkylation of the heavy C7+, C8+ or C9+ cut consisting of a treatment on an acid catalyst allowing weighting of the sulfur compounds, e) at least one stage of distillation of the effluent from stage d), intended to produce a light fraction that can be directly used as a low-sulfur gasoline base, and a heavy C11+ or C12+ fraction rich in sulfur compounds, used as middle distillate or fuel oil.

Abstract: The invention relates to a treatment process of a sulphur-containing hydrocarbon fraction, comprising the following steps: a) a hydrodesulphurization step of said hydrocarbon fraction to produce a sulphur-depleted effluent, consisting of passing said hydrocarbon fraction mixed with hydrogen over at least one hydrodesulphurization catalyst. b) a step of separation of the partially desulphurized hydrocarbon fraction from the hydrogen introduced in excess, as well as the H2S formed in step a). c) a step of collecting the sulphurous compounds, consisting of placing the partially desulphurized hydrocarbon fraction originating in step b) in contact with an adsorbent comprising at least one element chosen from the group constituted by the elements of groups VIII, IB, IIB and IVA, the adsorbent being used in reduced form in the absence of hydrogen at a temperature above 40° C., the metal content in the reduced form of the adsorbent being above 25% by weight.

Abstract: The invention concerns a process for the hydrodesulphurization of gasoline cuts for the production of gasolines with a low sulphur and mercaptans content. Said process comprises at least two hydrodesulphurization steps, HDS1 and HDS2, operated in parallel on two distinct cuts of the gasoline constituting the feed. The flow rate of hydrogen in the hydrodesulphurization step HDS2 is such that the ratio between the flow rate of hydrogen and the flow rate of feed to be treated is less than 80% of the ratio of the flow rates used to desulphurize in the hydrodesulphurization step HDS1.

Abstract: The present invention aims to isolate the azeotropes formed in a distillation column (B1) by methanol, propane and butane. The azeotropes are then liquefied in heat exchanger (E2) and mixed in contactor (M1) with water in order to dissolve the methanol in water. The mixture is then fed into a decantation tank (D2) to separate the aqueous phase from the liquid hydrocarbon phase. Finally, an aqueous phase containing methanol is discharged and the methanol-depleted hydrocarbon phase is recycled to distillation column (B1) as reflux.

Abstract: The present invention aims to isolate the azeotropes formed in a distillation column (B1) by methanol, propane and butane. The azeotropes are then liquefied in heat exchanger (E2) and mixed in contactor (M1) with water in order to dissolve the methanol in water. The mixture is then fed into a decantation tank (D2) to separate the aqueous phase from the liquid hydrocarbon phase. Finally, an aqueous phase containing methanol is discharged and the methanol-depleted hydrocarbon phase is recycled to distillation column (B1) as reflux.

Abstract: The device comprises at least one column 1 that is filled with a number of beds A.sub.n having an adsorbent that are separated by a fluid distributor plate P.sub.1. Each plate is divided into a number of sectors P.sub.10 and P.sub.11, and each sector comprises at least one fluid distribution chamber 13 that is pierced with openings and a circulation space 8 in the vicinity of the openings. The chambers of the plate are connected to a line 10 for transfer to the outside. With respect to the chambers on a plate, transfer line 10 P, is connected to another transfer line 20 relative to chambers 23 on another plate (P.sub.i+1 or P.sub.i+2) that is arranged downstream by a bypass line L.sub.1,2. The latter comprises means 14, 15, 16 for monitoring and adjustment of the flow of fluid that circulates there, such that the distribution chambers are flushed by a fluid which has approximately the same composition as that of the fluid that circulates through circulation space 8 at each of the chambers.

Abstract: The device comprises at least one column 1 that is filled with a number of beds A.sub.n having an adsorbent that are separated by a fluid distributor plate P.sub.i. Each plate is divided into a number of sectors P.sub.10 and P.sub.11, and each sector comprises at least one fluid distribution chamber 13 that is pierced with openings and a circulation space 8 in the vicinity of the openings. The chambers of the plate are connected to a line 10 for transfer to the outside. With respect to the chambers on a plate, transfer line 10 P.sub.i is connected to another transfer line 20 relative to chambers 23 on another plate (P.sub.i+1 or P.sub.i+2) that is arranged downstream by a bypass line L.sub.1,2. The latter comprises means 14, 15, 16 for monitoring and adjustment of the flow of fluid that circulates there, such that the distribution chambers are flushed by a fluid which has approximately the same composition as that of the fluid that circulates through circulation space 8 at each of the chambers.

Abstract: The invention is a column for separating a substance from a liquid having a plurality of separable compounds. The column has at least a first and a second bed of granular solids separated by at least one device, the device has at least a collection device which collects the substance to be separated, the collection device being in fluid connection to at least one mixing chamber, at least a first circuit for injection and/or removal of a first secondary fluid B.sub.1 and at least a second injection and/or removal circuit of a second secondary fluid B.sub.2. The injection and/or removal circuits are in communication with the mixing chamber with at least one opening allowing passage of the secondary fluids B.sub.1, B.sub.2 into the mixing chamber.

Abstract: A process for separating para-xylene from a C.sub.8 feed in a simulated moving bed comprises a step for adsorption on a zeolite and desorption using a desorbent delivering an extract and a raffinate, and an extract crystallization step. A stream of water is introduced into the feed, into the desorbent and/or into the stream for recycling one flux in the column, such that the weighted average of the amounts of water measured in the extract and in the raffinate is in the range 1 to 200 ppm. The ratio S/F of the desorbent flow rate to that of the feed during the adsorption and desorption step is in the range 0.6 to 2.5.

Abstract: A device for distributing, mixing, injecting, and/or removing several fluids, one of the fluids being a main fluid A.sub.1, and at least a first secondary fluid B.sub.1 and a second secondary fluid B.sub.2, said device having means (3, 4) for collecting said main fluid A.sub.1, said collecting means being related to at least one mixing chamber having at least one wall substantially parallel to the device axis circuit (12, 5) of a first secondary fluid B.sub.1, and at least a second injection and/or removal circuit (13, 6) of a second secondary fluid B.sub.2, said injection and/or removal circuits being in communication with the mixing chamber (7) by means of one or more openings (15, 16) allowing passage of said secondary fluids B.sub.1 and B.sub.