Procede de deshydratation d'un melange aqueux d'alcools comprenant au moins du methanol et de l'ethanol

Procede de deshydratation d'un melange aqueux d'alcools renfermant du methanol et de l'ethanol et eventuellement des alcools superieurs. On fractionne C1 le melange d'alcools. Une partie au moins de l'ethanol avec les alcools superieurs est soutiree en fond 2 et extraite C2 par un hydrocarbure 8. L'eau est evacuee 7. L'extrait 12 est fractionne C3 et C4. On recueille du methanol deshydrate 5 et de l'ethanol deshydrate 21 que l'on peut melanger. La chaleur necessaire au chauffage de la colonne C3 resulte de la condensation des vapeurs de tete de la colonne C1 dans l'echangeur R. Application a la fabrication d'un melange carburant pour automobiles.

METHOD FOR DESULFURIZING HYDROCARBON FRACTIONS FROM STEAM CRACKING EFFLUENTS

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.

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

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.

Procédé de déshydratation, de désacidification et de séparation d'un condensat d'un gaz naturel

Procédé de traitement d'un gaz contenant du méthane, au moins un hydrocarbure supérieur, de l'eau et au moins un gaz acide CO2 et/ou H2 S dans le but d'en éliminer l'eau, le (ou les) gaz acides et d'extraire le (ou les) hydrocarbures supérieurs. Le procédé comprend une étape de contact du gaz 1 avec une phase liquide recyclée de solvant 2 permettant d'éliminer l'eau 4 débarrassée de solvant, une étape de refroidissement E1, une étape de rectification G2, une étape de séparation des hydrocarbures liquides 6, une étape d'absorption des gaz acides dans le solvant G3 et une étape de régénération dudit solvant D1. Application au gaz naturel et au gaz de raffinerie.

Procede de production d'alcool sensiblement anhydre renfermant au moins 2 atomes de carbone par distillation et extraction d'une solution aqueuse de cet alcool

Procede de production d'alcool sensiblement anhydre renfermant au moins 2 atomes de carbone. Une solution aqueuse de cet alcool est distillee C1 et le distillat obtenu 3 soumis a extraction C2 par un hydrocarbure 8. L'extrait 9 est distille C3 C4 et l'on obtient l'alcool deshydrate 16. Le chauffage de la colonne C3 et eventuellement de la colonne C4 est obtenu par condensation R1 et R2 des vapeurs de la colonne C1. Application a la production d'ethanol carburant.

Naphtha hydrotreating process

... the ratio of the loaded specific surface area of the third catalyst to that of the second catalyst is greater than 1.07.

Method for separating paraxylene comprising adsorption with water injection and crystallisation

Process for the treatment of a gasoline by separation into three cuts

A process for the desulphurization of a gasoline cut containing sulphur-containing compounds, olefins and diolefins, involving (a) fractionating the gasoline in order to recover a light gasoline cut LCN and a first heavy gasoline cut HCN; (b) desulphurization of the first heavy gasoline cut HCN; (c) partially condensing desulphurization effluent obtained from b) in a manner such as to produce a gaseous phase of hydrogen and H 2 S and a liquid hydrocarbon phase HCN of dissolved H 2 S; (d) separating the liquid hydrocarbon phase HCN into an intermediate gasoline cut MCN and a second heavy gasoline cut HHCN; (e) carrying out a second desulphurization of the second heavy gasoline cut HHCN.

Process for deep desulphurization of cracking gasolines with a small loss of octane number

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.

Process for hydrodesulphurizing an olefinic gasoline

A process for the treatment of a gasoline containing sulphur-containing compounds, olefins and diolefins: a) fractionating the gasoline into at least: a light gasoline cut LCN; a primary intermediate gasoline cut, MCN; and a primary heavy gasoline cut HHCN; b) desulphurizing the primary intermediate gasoline cut MCN alone producing an at least partially desulphurized primary intermediate gasoline cut MCN; c) desulphurizing the primary heavy gasoline cut HHCN alone producing an at least partially desulphurized primary heavy gasoline cut HHCN; d) sending, as a mixture, the partially desulphurized primary intermediate gasoline cut MCN and the partially desulphurized primary heavy gasoline cut HHCN to a separation column separating a gaseous stream containing hydrogen and H2S, a secondary intermediate gasoline cut MCN with low sulphur and mercaptans contents and a secondary heavy gasoline cut HHCN containing sulphur-containing compounds including recombinant mercaptans; e) desulphurizing the ...

Process for elimination of mercury contained in a hydrocarbon feed with hydrogen recycling

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.

Process for hydrogenation of a hydrocarbon feedstock comprising aromatic compounds

Process for hydrogenation of aromatic compounds in a feedstock comprising hydrocarbons having at least five carbon atoms, comprising: a) contacting feedstock, a hydrogen gas, and a nickel or platinum hydrogenation catalyst at 100 to 400° C., 0.5 to 8 MPa, and a feedstock flow rate 0.5 to 5 h−1, as to produce a partially-hydrogenated hydrocarbon feedstock and gas; and b) contacting the partially-hydrogenated feedstock, and a nickel or platinum hydrogenation catalyst at 100 and 400° C., a pressure of between 0.5 and 8 MPa, with a flow rate of the partially-hydrogenated feedstock between 0.3 and 8 h−1, a ratio between the volume of hydrogen and the volume of the partially-hydrogenated feedstock between 0.3 and 3 Nm3/m3, and a ratio between the superficial mass flow rate of the partially-hydrogenated feedstock and the superficial mass flow rate of gas (Ul/Ug) at the inlet of the reactor between 50 and 500.

Method for desulfurizing hydrocarbon fractions from steam cracking effluents

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.

Method for sweetening an olefinic petrol of sulphide-type compounds

A process reducing sulfides R1-S-R2, with R1 and R2 methyl or ethyl, in a gasoline containing diolefins, mono-olefins and sulphur: A) contacting gasoline in mixture with a light gasoline cut recycled from C) and hydrogen in a reactor with catalyst A at least one VIb metal and at least one non noble group VIII metal on a support, producing effluent having diolefins and sulfides R1-S-R2, with R1 and R2 methyl or ethyl radicals lower than that that of the starting gasoline; B) the effluent from A) is sent into a fractionating column separating at the top a light gasoline cut containing hydrocarbons having less than 6 carbon atoms per molecule and at the bottom a heavy gasoline cut containing hydrocarbons having 6 and more than 6 carbon atoms per molecule; C) recycling a part of the light gasoline from B) to the reactor of A) with a recycle ratio 0.1 to 0.7.

PROCESS FOR THE PRODUCTION OF HIGH-QUALITY KEROSENE AND DIESEL FUELS FOR THE COPRODUCTION OF HYDROGEN FROM SATURATED LIGHT CUTS

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.

Process for desulphurizing olefinic gasolines, comprising at least two distinct hydrodesulphurization steps

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, HDS 1 and HDS 2 , operated in parallel on two distinct cuts of the gasoline constituting the feed. The flow rate of hydrogen in the hydrodesulphurization step HDS 2 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 HDS 1.

Process for deep desulphurization of cracking gasolines with a small loss of octane number

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.

Process for the treatment of a gasoline

A process for the treatment of a gasoline containing sulphur-containing compounds, olefins and diolefins, comprising the following steps: a) fractionating the gasoline in a manner such as to recover at least one intermediate gasoline cut, MCN, comprising hydrocarbons and wherein the temperature difference (ΔT) between the 5% and 95% by weight distillation points is less than 60° C.; b) desulphurizing the intermediate gasoline cut MCN alone and in the presence of a hydrodesulphurization catalyst and hydrogen in a manner such as to produce a partially desulphurized intermediate gasoline cut MCN; and c) fractionating, in a splitter, the at least partially desulphurized intermediate gasoline cut MCN which has not undergone catalytic treatment subsequent to step b), in a manner such as to recover an intermediate gasoline with low sulphur and mercaptans contents from the column head and a cut of hydrocarbons containing sulphur-containing compounds including mercaptans from the column bottom.

Process for the production of high-quality kerosene and diesel fuels for the coproduction of hydrogen from saturated light cuts

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.

Method for Desulfurising Olefin Motor Gasoline

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)).

Process for converting a heavy feed using a catalytic cracking unit and a step for selective hydrogenation of the gasoline obtained from catalytic cracking

The present invention describes a process for converting a heavy feed which is flexible for the production of propylene, gasoline and middle distillate. The process uses a catalytic cracking unit and a unit for the oligomerization of C4 to C9 olefins. The process of the invention includes selective hydrogenation of the unrefined gasoline cut obtained from the catalytic cracking unit and separation between a light gasoline cut and a heavy gasoline cut, the light gasoline being directed to the oligomerization unit.

PROCESS FOR DESULPHURIZING OLEFINIC GASOLINES, COMPRISING AT LEAST TWO DISTINCT HYDRODESULPHURIZATION STEPS

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.

Process for eliminating arsenic from a hydrocarbon feed

The invention of the current application is a process for eliminating arsenic from a hydrocarbon feed which is at least partially liquid, including steps a and b. Step a includes bringing the hydrocarbon feed and hydrogen into contact with a first capture mass including a support and at least one metal M1 from group VIB and at least two metals M2 and M3 from group VIII. Step b includes bringing the hydrocarbon feed and hydrogen into contact with a second capture mass in the sulphide form including 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. Step a) is either carried out before step b) or carried out simultaneously with step b).

Process for recovering the methanol contained in a liquid hydrocarbon feed

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.

Process for the oligomerization of light olefins by means of a reaction section comprising at least two reactors which can be permutated, promoting the selectivity for distillates

The invention concerns a process for the production of middle distillates, comprising at least one step for the catalytic oligomerization of a feed comprising olefins containing 3 to 9 carbon atoms, in which the reaction section comprises at least two reactors which are positioned in series and which can be permutated, each containing at least one oligomerization catalyst for the oligomerization reactions, said catalysts being identical or different, and in which the reactor which is the furthest downstream in the direction of movement of said feed comprising olefins contains the catalyst with a period of service which is shorter than the period of service of the catalysts present in the other reactors and is operated at an average temperature (WABTn) which is lower than the average temperature (WABTn−1) of the reactor directly preceding it, the difference between said average temperatures being at least 10° C. (WABTn−1−WABTn≥10° C.).

Process for recovering the methanol contained in a liquid hydrocarbon feed

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.

Process for the hydrodesulphurization of hydrocarbon cuts

A process for the concomitant production of at least two hydrocarbon cuts with low sulphur contents from a mixture of hydrocarbons having a total sulphur content in the range 30 to 10000 ppm by weight, by a) hydrodesulphurization in the presence of hydrogen and a hydrodesulphurization catalyst; b) separating hydrogen sulphide from the partially desulphurized effluent obtained from a); c) hydrodesulphurization of the partially desulphurized mixture obtained from b) in the presence of hydrogen and a hydrodesulphurization catalyst, the temperature of the second hydrodesulphurization being higher than that of the first hydrodesulphurization; d) fractionating the desulphurized mixture obtained in c) into at least two desulphurized hydrocarbon cuts.

PROCESS FOR CONVERTING A HEAVY FEED USING A CATALYTIC CRACKING UNIT AND A STEP FOR SELECTIVE HYDROGENATION OF THE GASOLINE OBTAINED FROM CATALYTIC CRACKING

The present invention describes a process for converting a heavy feed which is flexible for the production of propylene, gasoline and middle distillate. 1. A process for converting a heavy hydrocarbon feed having great flexibility for the production of propylene , gasoline and middle distillate , carrying out the following steps when the process operates in maxi propylene mode:a) a step for catalytic cracking (FCC) of the heavy cut, producing a C5-220° C. gasoline cut when the FCC is orientated towards the production of gasoline and C5-150° C. when the FCC is orientated towards the production of middle distillate;{'sup': −1', '−1, 'b) a step for selective hydrogenation (SHU) of the gasoline cut obtained from the catalytic cracking unit (FCC), operating under the following conditions: a pressure in the range 0.5 to 5 MPa, a temperature in the range 80° C. to 220° C., with a liquid hourly space velocity (LHSV) in the range 1 hto 10 h, the liquid hourly space velocity being expressed in litres of feed per litre of catalyst per hour (L/L·h);'}c) a step for separating the gasoline obtained from step b) by distillation (SPLIT) in order to separate two cuts: a light C5-Pf gasoline cut and a heavy Pf-220° C. gasoline cut, the temperature Pf, being the boundary between light gasoline and heavy gasoline, being in the range 50° C. to 150° C., preferably in the range 50° C. to 100° C., and more preferably in the range 50° C. to 80° C.;d) a step for purification (PUR) of the light C5-Pf gasoline obtained from step c) which is intended to reduce the nitrogen to less than 1 ppm by weight, preferably less than 0.2 ppm; temperature in the range 60° C. to 350° C., preferably in the range 100° C. to 300° C., and still more preferably in the range 120° C. to 250° C.;', {'sup': '6', 'pressure in the range 1 to 10 MPa (1 MPa=10Pascal), preferably in the range 2 to 8 MPa, and more preferably in the range 3 to 6 MPa;'}, 'catalysts based on silica-alumina or amorphous aluminosilicate, or ...

PROCESS FOR ELIMINATION OF MERCURY CONTAINED IN A HYDROCARBON FEED WITH HYDROGEN RECYCLING

Elimination of mercury contained in a hydrocarbon feed by: 1) Process for elimination of mercury contained in a liquid hydrocarbon feed comprising mercury compounds , in which the following steps are carried out:{'b': 1', '14', '11', '13, 'a) the feed () is mixed with a hydrogen stream () and a gaseous fraction (; ) originating from step c),'}{'b': '5', 'b) the mixture obtained in step a) is brought into contact () with a catalyst in order to convert the mercury compounds to elemental mercury so as to produce an effluent containing elemental mercury,'}{'b': 2', '8', '10', '11', '15', '11', '13, 'c) said effluent containing elemental mercury is cooled (; ) to a temperature comprised between 20° C. and 80° C., then, at a pressure comprised between 1.5 MPa and 3.5 MPa and at a temperature comprised between 20° C. and 80° C., a separation () of said effluent containing the elemental mercury into a gaseous fraction () and a liquid fraction () is carried out, at least a part of said gaseous fraction being recycled (; ) to step a), then'}{'b': 20', '42', '21, 'd) a fractionation () of said liquid fraction is carried out in order to produce a gaseous phase () and a liquid phase (),'}{'b': 33', '42', '43, 'e) at least a part of the gaseous phase (; ) produced in step d) is brought into contact with a mercury collection material ().'}2) Process according to claim 1 , in which step b) is carried out at a temperature comprised between 270° C. and 360° C. and at a pressure comprised between 1.5 MPa and 7 MPa.320) Process according to claim 1 , in which the fractionation () of step d) is carried out at a pressure comprised between 0.5 MPa and 2.0 MPa such that said liquid phase comprises at least 95% by weight of the throughput of said liquid hydrocarbon feed.445453342) Process according to claim 1 , in which a portion () of said gaseous fraction obtained in step c) is drawn off and discharged from the process and said portion () of said gaseous fraction is mixed with the gaseous ...

METHOD FOR SOFTENING SULFIDE-TYPE COMPOUNDS OF AN OLEFINIC GASOLINE

This invention relates to a method for reducing the content of sulfide-type compounds of formula R1-S—R2, with R1 and R2 selected from among the methyl (CH) and ethyl (CH) radicals, of a gasoline that contains diolefins, monoolefins, and sulfur. The method implements a first catalytic step for selective hydrogenation of diolefins at a temperature of between 60° C. and 150° C. and then a step for heating the effluent that is obtained from the first step with a temperature difference ΔT of between 10° C. and 100° C. and a second catalytic step on the effluent that is heated in such a way as to produce an effluent that has a content of sulfide-type compounds of formula R1-S—R2, with R1 and R2 selected from among the methyl (CH3) and ethyl (C2H5) radicals, lower than that of the starting gasoline. 1. Method for reducing the content of sulfide-type compounds of formula R1-S—R2 , with R1 and R2 selected from among the methyl (CH) and ethyl (CH) radicals , of a gasoline that contains diolefins , monoolefins , and sulfur , in which:{'sup': '−1', 'claim-text': {'sup': '−1', 'sub': '2', '10 h, a pressure of between 0.5 and 5 MPa, and with a volumetric ratio of added H/gasoline feedstock of between 1 to 40 normal liters of hydrogen per liter of gasoline (vol/vol), in such a way as to produce an effluent at a temperature T1 of between 60° C. and 150° C. and having a lower diolefin content than that of the starting gasoline;'}, 'A) In a first reactor, the gasoline is brought into contact with hydrogen and a catalyst A that comprises at least one metal of group VIb and at least one non-noble metal of group VIII that are deposited on a substrate, with step A being carried out at a temperature in the reactor of between 60° C. and 150° C. with an hourly volumetric flow rate (VVH) of between 1 hand'}B) The effluent that is obtained from the first reactor is heated in a heating device at a temperature T2 with a temperature difference ΔT (T2-T1) of between 10° C. and 100° C.; {'sup': − ...

PROCESS FOR HYDROGENATION OF A HYDROCARBON FEEDSTOCK COMPRISING AROMATIC COMPOUNDS

Process for hydrogenation of aromatic compounds in a feedstock comprising hydrocarbons having at least five carbon atoms, comprising: 1. Process for hydrogenation of aromatic compounds contained in a feedstock comprising hydrocarbons having at least five carbon atoms , with the process comprising at least the following stages:{'sup': '−1', 'a) Said feedstock, a gas stream comprising hydrogen, and a hydrogenation catalyst comprising nickel or platinum dispersed on a substrate are brought into contact in a reactor, with the contact being made at a temperature of between 100 and 400° C., at a pressure of between 0.5 and 8 MPa, and with an hourly volumetric flow rate of the liquid feedstock at the inlet of the reactor of between 0.5 and 5 h, in such a way as to produce an effluent comprising a partially-hydrogenated hydrocarbon feedstock and gas;'}{'sup': −1', '3', '3, 'b) The partially-hydrogenated feedstock that is obtained from stage a) in liquid form, a gas stream comprising hydrogen, and a hydrogenation catalyst comprising nickel or platinum dispersed on a substrate are brought into contact in a reactor, with the contact being made at a temperature of between 100 and 400° C., at a pressure of between 0.5 and 8 MPa, with an hourly volumetric flow rate of the liquid partially-hydrogenated feedstock of between 0.3 and 8 h, with a ratio between the volume of hydrogen that is introduced and the volume of the partially-hydrogenated feedstock of between 0.3 and 3 Nm/m, and with a ratio between the superficial mass flow rate of the liquid partially-hydrogenated feedstock and the superficial mass flow rate of gas (Ul/Ug) at the inlet of the reactor of between 50 and 500.'}2. Process according to claim 1 , in which the ratio between the superficial mass flow rate of the liquid partially-hydrogenated feedstock and the superficial mass flow rate of gas (Ul/Ug) at the inlet of the reactor is between 60 and 450 claim 1 , and preferably between 70 and 300.3. Process according to ...

PROCESS FOR THE TREATMENT OF A GASOLINE BY SEPARATION INTO THREE CUTS

The present invention concerns a process for the desulphurization of a gasoline cut containing sulphur-containing compounds, olefins and diolefins, comprising at least the following steps: 1. A process for the desulphurization of a gasoline containing sulphur-containing compounds , olefins and diolefins , the process comprising at least the following steps:a) fractionating the gasoline in order to recover a light gasoline cut LCN and a first heavy gasoline cut HCN;{'sup': −1', '3', '3', '3', '3', '3', '3, 'b) carrying out a first step for desulphurization of the first heavy gasoline cut HCN in the presence of a hydrodesulphurization catalyst and hydrogen, at a temperature in the range 160° C. to 450° C., at a pressure in the range 0.5 to 8 MPa, with a liquid velocity in the range 0.5 to 20 hand with a ratio between the flow rate of hydrogen, expressed in normal mper hour, and the flow rate of feed to be treated, expressed in mper hour under standard conditions, in the range 50 Nm/mto 1000 Nm/min a manner such as to produce a first desulphurization effluent;'}{'sub': 2', '2, 'c) partially condensing the first desulphurization effluent obtained from step b) in a manner such as to produce a gaseous phase essentially constituted by hydrogen and HS and a liquid hydrocarbon phase HCN comprising dissolved HS;'}d) separating the liquid hydrocarbon phase HCN into an intermediate gasoline cut MCN and a second heavy gasoline cut HHCN;{'sup': −1', '3', '3', '3', '3', '3', '3, 'e) carrying out a second step for desulphurization of the second heavy gasoline cut HHCN in the presence of a hydrodesulphurization catalyst and hydrogen, at a temperature in the range 160° C. to 450° C., at a pressure in the range 0.5 to 8 MPa, with a liquid velocity in the range 0.5 to 20 hand with a ratio between the flow rate of hydrogen, expressed in normal mper hour, and the flow rate of feed to be treated, expressed in mper hour under standard conditions, in the range 50 Nm/mto 1000 Nm/min a manner ...

PROCESS FOR HYDRODESULPHURIZING AN OLEFINIC GASOLINE

A process for the treatment of a gasoline containing sulphur-containing compounds, olefins and diolefins: 1. A process for the treatment of a gasoline containing sulphur-containing compounds , olefins and diolefins , comprising the following steps: a light gasoline cut LCN;', 'a primary intermediate gasoline cut, MCN; and', 'a primary heavy gasoline cut HHCN;, 'a) fractionating the gasoline into at least{'sup': −1', '3', '3', '3', '3', '3', '3, 'b) desulphurizing the primary intermediate gasoline cut MCN alone and in the presence of a hydrodesulphurization catalyst and hydrogen, at a temperature in the range 160° C. to 450° C., at a pressure in the range 0.5 to 8 MPa, with a liquid space velocity in the range 0.5 to 20 hand with a ratio between the flow rate of hydrogen, expressed in normal mper hour, and the flow rate of feed to be treated, expressed in mper hour under standard conditions, in the range 50 Nm/mto 1000 Nm/min a manner such as to produce an at least partially desulphurized primary intermediate gasoline cut MCN;'}{'sup': −1', '3', '3', '3', '3', '3', '3, 'c) desulphurizing the primary heavy gasoline cut HHCN alone in the presence of a hydrodesulphurization catalyst and hydrogen, at a temperature in the range 200° C. to 450° C., at a pressure in the range 0.5 to 8 MPa, with a liquid space velocity in the range 0.5 to 20 hand with a ratio between the flow rate of hydrogen, expressed in normal mper hour, and the flow rate of feed to be treated, expressed in mper hour under standard conditions, in the range 50 Nm/mto 1000 Nm/min a manner such as to produce an at least partially desulphurized primary heavy gasoline cut HHCN;'}{'sub': '2', 'd) sending, as a mixture, the partially desulphurized primary intermediate gasoline cut MCN which has not undergone treatment following step b) and the partially desulphurized primary heavy cut HHCN which has not undergone treatment following step c) to a separation column in order to separate a gaseous stream containing ...

METHOD FOR SWEETENING AN OLEFINIC PETROL OF SULPHIDE-TYPE COMPOUNDS

A process reducing sulfides R1-S—R2, with R1 and R2 methyl or ethyl, in a gasoline containing diolefins, mono-olefins and sulphur: 1. Process for reducing the content of compounds of the sulphide type of formula R1-S—R2 , with R1 and R2 selected from the methyl (CH) and ethyl (CH) radicals , in a gasoline containing diolefins , mono-olefins and sulphur , in which:{'sup': −1', '−1, 'sub': 2', '3', '2', '5, 'A) the gasoline in a mixture with a light gasoline cut recycled from step C) and hydrogen are brought into contact in a reactor with catalyst A comprising at least one metal of group VIb and at least one non noble metal of group VIII deposited on a support, step A) being carried out at a temperature in the reactor comprised between 60° C. and 150° C. with a liquid hourly space velocity (LHSV) comprised between 1 hand 10 h, a pressure comprised between 0.5 and 5 MPa and with a ratio by volume (added H/mixture of gasolines) comprised between 1 to 40 normal litres of hydrogen per litre of the mixture of gasolines (vol/vol), so as to produce an effluent having a content of diolefins and a content of compounds of the sulphide type of formula R1-S—R2, with R1 and R2 selected from the methyl (CH) and ethyl (CH) radicals lower than that that of the starting gasoline;'}B) said effluent originating from step A) is sent into a fractionating column in order to separate at the top of the column a light gasoline cut containing hydrocarbons having less than 6 carbon atoms per molecule and at the bottom of the column a heavy gasoline cut containing hydrocarbons having 6 and more than 6 carbon atoms per molecule;C) a part of the light gasoline cut originating from step B) is recycled into the reactor of step A) with a recycle ratio comprised between 0.1 and 0.7, a content of oxide of the metal of group VIb comprised between 4 and 20% by weight with respect to the total weight of the catalyst,', 'a content of oxide of the metal of group VIII comprised between 4 and 15% by weight ...

PROCESS FOR THE OLIGOMERIZATION OF LIGHT OLEFINS BY MEANS OF A REACTION SECTION COMPRISING AT LEAST TWO REACTORS WHICH CAN BE PERMUTATED, PROMOTING THE SELECTIVITY FOR DISTILLATES

The invention concerns a process for the production of middle distillates, comprising at least one step for the catalytic oligomerization of a feed comprising olefins containing 3 to 9 carbon atoms, in which the reaction section comprises at least two reactors which are positioned in series and which can be permutated, each containing at least one oligomerization catalyst for the oligomerization reactions, said catalysts being identical or different, and in which the reactor which is the furthest downstream in the direction of movement of said feed comprising olefins contains the catalyst with a period of service which is shorter than the period of service of the catalysts present in the other reactors and is operated at an average temperature (WABTn) which is lower than the average temperature (WABTn−1) of the reactor directly preceding it, the difference between said average temperatures being at least 10° C. (WABTn−1−WABTn≧10° C.). 1. A process for the production of middle distillates , comprising at least one step for the catalytic oligomerization of a feed comprising olefins containing 3 to 9 carbon atoms , in which the reaction section comprises at least two reactors which are positioned in series and which can be permutated , each containing at least one catalyst for the oligomerization reactions , said catalysts being identical or different , and in which the reactor which is the furthest downstream in the direction of movement of said feed contains the catalyst with a period of service which is shorter than the period of service of the catalysts present in the other reactors and is operated at an average temperature (WABTn) which is lower than the average temperature (WABTn−1) of the reactor directly preceding it , the difference between said average temperatures being at least 10° C. (WABTn−1−WABTn≧10° C.).2. The process as claimed in claim 1 , in which the reactors which are positioned in series and which can be permutated are used in a cyclic manner by ...

PROCESS FOR THE HYDRODESULPHURIZATION OF HYDROCARBON CUTS

A process for the concomitant production of at least two hydrocarbon cuts with low sulphur contents from a mixture of hydrocarbons having a total sulphur content in the range 30 to 10000 ppm by weight, by 2. The process according to claim 1 , in which the catalyst for step a) comprises a metal from group VIII selected from nickel and cobalt and a metal from group VI selected from molybdenum and tungsten.3. The process according to claim 1 , in which the catalyst for step a) comprises phosphorus.4. The process according to claim 1 , in which the catalyst for step c) comprises a metal from group VIII selected from nickel and cobalt and a metal from group VI selected from molybdenum and tungsten.5. The process according to claim 4 , in which the catalyst for step c) further comprises phosphorus.6. The process according to claim 1 , in which the first hydrocarbon fraction is a gasoline cut obtained from a catalytic cracking unit.7. The process according to claim 6 , in which the first hydrocarbon fraction is a C6 hydrocarbon cut obtained by distillation of a gasoline cut obtained from a catalytic cracking unit.8. The process according to in which claim 7 , before the distillation step claim 7 , the gasoline cut has undergone a step for selective hydrogenation of the diolefins present in said gasoline cut.9. The process according to claim 1 , in which the second hydrocarbon fraction is selected from a light cycle oil claim 1 , a heavy diesel cut claim 1 , a vacuum distillate cut claim 1 , a hydrocarbon cut obtained from a visbreaking unit and a hydrocarbon cut obtained from a coking unit.10. The process according to claim 1 , in which the mixture contains a gasoline cut and a light cycle oil.11. The process according to claim 10 , in which said mixture is the product of a distillation of an effluent obtained from a catalytic cracking unit.12. The process according to claim 1 , in which the temperature of step c) is higher than the temperature of step a) by at least 5° C. ...

PROCESS FOR PRODUCING A GASOLINE WITH A LOW SULPHUR AND MERCAPTANS CONTENT

The present application concerns a process for the treatment of a gasoline containing sulphur-containing compounds and olefins, with the following steps: 1. A process for the treatment of a gasoline containing sulphur-containing compounds and olefins , the process comprising at least the following steps:{'sup': −1', '3', '3', '3', '3', '3', '3, 'sub': '2', 'a) bringing the gasoline, hydrogen and a hydrodesulphurization catalyst into contact in at least one reactor at a temperature in the range 200° C. to 400° C., at a pressure in the range 0.5 to 5 MPa, at an hourly space velocity in the range 0.5 to 20 hand with a ratio between the flow rate of hydrogen, expressed in normal mper hour, and the flow rate of the feed to be treated, expressed in mper hour under standard conditions, in the range 50 Nm/mto 1000 Nm/m, in order to convert at least a portion of the sulphur-containing compounds into HS;'}{'sub': '2', 'b) carrying out a step for separating the HS which is formed and present in the effluent obtained from step a);'}{'sub': 2', '2, 'sup': −1', '3', '3, 'c) bringing the HS -depleted effluent obtained from step b) into contact, in a reactor, with a catalyst containing at least one sulphide of at least one transition metal or lead deposited on a porous support, step c) being carried out at a temperature in the range 30° C. to 250° C., with a liquid hourly space velocity in the range 0.5 to 10 h, a pressure in the range 0.2 to 5 MPa and with a H/feed ratio in the range 0 to 25 Nmof hydrogen per mof feed, in order to produce a gasoline obtained from step c) with a reduced mercaptans content compared with that of the effluent obtained from step b).'}2. The process according to claim 1 , in which the transition metal of the catalyst for step c) is selected from a metal from group VIB claim 1 , a metal from group VIII and copper claim 1 , used alone or as a mixture.3. The process according to claim 2 , in which the catalyst for step c) comprises:{'sup': 2', '2, 'a ...

PROCESS FOR THE TREATMENT OF A GASOLINE

A process for the treatment of a gasoline containing sulphur-containing compounds, olefins and diolefins, comprising the following steps: 1. A process for the treatment of a gasoline containing sulphur-containing compounds , olefins and diolefins , the process comprising the following steps:a) fractionating the gasoline in a manner such as to recover at least one intermediate gasoline cut, MCN, comprising hydrocarbons and wherein the temperature difference (ΔT) between the 5% and 95% by weight distillation points is less than or equal to 60° C.;{'sup': −1', '3', '3', '3', '3', '3', '3, 'b) desulphurizing the intermediate gasoline cut MCN alone and in the presence of a hydrodesulphurization catalyst and hydrogen, at a temperature in the range 160° C. to 450° C., at a pressure in the range 0.5 to 8 MPa, with a liquid space velocity in the range 0.5 to 20 hand with a ratio between the flow rate of hydrogen, expressed in normal mper hour, and the flow rate of feed to be treated, expressed in mper hour under standard conditions, in the range 50 Nm/mto 1000 Nm/min a manner such as to produce a partially desulphurized intermediate gasoline cut MCN; and'}c) fractionating, in a splitter, the partially desulphurized intermediate gasoline cut MCN which has not undergone catalytic treatment subsequent to step b), in a manner such as to recover an intermediate gasoline with low sulphur and mercaptans contents from the column head and a cut of hydrocarbons containing sulphur-containing compounds including mercaptans from the column bottom.2. The process as claimed in claim 1 , in which: a light gasoline cut LCN;', 'an intermediate gasoline cut, MCN, comprising hydrocarbons and wherein the temperature difference (ΔT) between the 5% and 95% by weight distillation points is less than or equal to 60° C.; and', 'a heavy gasoline cut HHCN containing hydrocarbons;, 'a) the gasoline is fractionated into at least{'sup': −1', '3', '3', '3', '3', '3', '3, 'b) the intermediate gasoline cut ...

NAPHTHA HYDROTREATING PROCESS

The invention is a naphtha hydrotreating process, using at least three catalysts, comprising: 1. Naphtha hydrotreating process using at least three catalysts , each of said catalysts being characterized by its “loaded specific surface area” , denoted by L , Land L , respectively , corresponding to its specific surface area by mass multiplied by its loaded density , a first step a) in the presence of the first catalyst, said first catalyst comprising a support and optionally an active phase, said active phase containing at least one Group 6 metal and preferably at least one Group 9 or 10 metal;', 'a second step b) in the presence of the second catalyst, said second catalyst comprising a support and an active phase, said active phase containing at least one Group 9 or 10 metal and at least one Group 6 metal;', 'a third step c) in the presence of the third catalyst, said third catalyst comprising a support and an active phase, said active phase containing at least one Group 6 metal and optionally at least one Group 9 or 10 metal;, 'said process comprising three successive steps the content of Group 6 metal of the third catalyst is less than the content of Group 6 metal of said second catalyst;', {'sub': 1', '2, 'the ratio L/Lof the “loaded specific surface area” of said first catalyst to the “loaded specific surface area” of said second catalyst is greater than or equal to 1.20, preferably greater than or equal to 1.35;'}, {'sub': 3', '2, 'the ratio L/Lof the “loaded specific surface area” of said third catalyst to the “loaded specific surface area” of said second catalyst is greater than 1.07, preferentially greater than or equal to 1.20, more preferentially greater than or equal to 1.35.'}], 'such that2. Process according to claim 1 , in which said first catalyst comprises an active phase claim 1 , said active phase containing at least one Group 6 metal and preferably at least one Group 9 or 10 metal claim 1 , so that:the content of Group 6 metal of said first ...

METHOD AND DEVICE FOR IMPROVING THE PURITY OF A SIMULATED MOBILE BED PRODUCT

Process and device for improving the purity of a product in a simulated fluid bed

The device comprises at least one column 1 that is filled with a number of beds A n having an adsorbent that are separated by a fluid distributor plate P i . Each plate is divided into a number of sectors P 10 and P 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 i is connected to another transfer line 20 relative to chambers 23 on another plate (P i+1 or P i+2 ) that is arranged downstream by a bypass line L 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.

PROCESS FOR THE DESULFURATION OF OLEFINIC ESSENCES COMPRISING AT LEAST TWO DISTINCT HYDRODESULFURATION STAGES

L'invention concerne un procédé d'hydrodésulfuration des coupes essences visant à produire des essences à faible teneur en soufre et en mercaptans. Ce procédé comprend au moins deux étapes d'hydrodésulfuration HDS1 et HDS2 opérées en parallèle sur deux coupes distinctes de l'essence constituant la charge. Le débit d'hydrogène dans l'étape d'hydrodésuifuration HDS2 est tel que le rapport entre le débit d'hydrogène et le débit de charge à traiter est inférieur à 80% du rapport des débits mis en oeuvre pour désulfurer dans l'étape d'hydrodésulfuration HDS1. The invention relates to a process for the hydrodesulphurisation of gasoline cuts for the production of gasolines with a low sulfur and mercaptan content. This process comprises at least two hydrodesulfurization stages HDS1 and HDS2 operated in parallel on two distinct sections of the gasoline constituting the charge. The flow rate of hydrogen in the hydrodesulfurization step HDS2 is such that the ratio between the hydrogen flow rate and the feed rate to be treated is less than 80% of the ratio of the flow rates used to desulphurize in the hydrogenation stage. hydrodesulfurization HDS1.

PROCESS FOR SEPARATING ETHYL TERTIOBUTYL ETHER FROM MIXTURES WITH ETHANOL.

DEVICE FOR COLLECTING AND DISTRIBUTING A MAIN FLUID TO MINIMIZE DIFFERENCES IN JOURNEY TIMES

PROCESS FOR THE RECOVERY OF METHANOL CONTAINED IN A LOAD OF LIQUID HYDROCARBONS

PROCESS FOR DEEP DEFLAVING CRACKING SPECIES WITH LOW LOSS OF OCTANE INDEX

L'invention porte sur un procédé de traitement d'une fraction hydrocarbonée contenant du soufre comprenant les étapes suivantes:a) une étape d'hydrodésulfuration de ladite fraction hydrocarbonée afin de produire un effluent appauvri en soufre consistant à faire passer ladite fraction hydrocarbonée en mélange avec de l'hydrogène sur au moins un catalyseur d'hydrodésulfurationb) une étape de séparation de la fraction hydrocarbonée partiellement désulfurée, de l'hydrogène introduit en excès ainsi que de l'H2S formée lors de l'étape a)c) une étape de captation des composés soufrés consistant à mettre en contact la fraction hydrocarbonée partiellement désulfurée issue de l'étape b) avec un adsorbant comprenant au moins un élément sélectionné dans le groupe constitué par les éléments des groupes VIII, IB, IIB et IVA, l'adsorbant étant mis en oeuvre sous forme réduite en absence d'hydrogène à une température supérieure à 40 degres C, la teneur en métal sous forme réduite de l'adsorbant étant supérieure à 25% poids.

PROCESS FOR DEEP DEFLAVING CRACKING SPECIES WITH LOW LOSS OF OCTANE INDEX

L'invention porte sur un procédé de traitement d'une fraction hydrocarbonée contenant du soufre comprenant les étapes suivantes:a) une étape d'hydrodésulfuration de ladite fraction hydrocarbonée afin de produire un effluent appauvri en soufre consistant à faire passer ladite fraction hydrocarbonée en mélange avec de l'hydrogène sur au moins un catalyseur d'hydrodésulfurationb) une étape de séparation de la fraction hydrocarbonée partiellement désulfurée, de l'hydrogène introduit en excès ainsi que de l'H2S formée lors de l'étape a)c) une étape de captation des composés soufrés consistant à mettre en contact la fraction hydrocarbonée partiellement désulfurée issue de l'étape b) avec un adsorbant comprenant au moins un élément sélectionné dans le groupe constitué par les éléments des groupes VIII, IB, IIB et IVA, l'adsorbant étant mis en oeuvre sous forme réduite en absence d'hydrogène à une température supérieure à 40 degres C, la teneur en métal sous forme réduite de l'adsorbant étant supérieure à 25% poids. The invention relates to a method for treating a hydrocarbon fraction containing sulfur comprising the following steps:a) a step of hydrodesulphurizing said hydrocarbon fraction in order to produce a sulfur-depleted effluent consisting in passing said hydrocarbon fraction as a mixture with hydrogen on at least one hydrodesulphurization catalystb) a stage of separation of the partially desulphurized hydrocarbon fraction, of the hydrogen introduced in excess as well as of the H2S formed during stage a)c) a stage for capturing sulfur compounds, consisting in bringing the partially desulfurized hydrocarbon fraction from step b) into contact with an adsorbent comprising at least one element selected from the group consisting of elements from groups VIII, IB, IIB and IVA, the adsorbent being used in reduced form in the absence of hydrogen at a temperature above 40 degrees C, the metal content in reduced form of the ...

HEAVY LOAD CONVERTING METHOD USING CATALYTIC CRACKING UNIT AND SELECTIVE HYDROGENATION STEP FROM CATALYTIC CRACKING GASOLINE

METHOD OF HYDROGENATING A HYDROCARBON LOAD COMPRISING AROMATIC COMPOUNDS

L'invention concerne un procédé d'hydrogénation de composés aromatiques contenus dans une charge comprenant des hydrocarbures ayant au moins cinq atomes de carbone, le procédé comprenant au moins les étapes suivantes: a) on met en contact, dans un réacteur, ladite charge, un flux gazeux comprenant de l'hydrogène et un catalyseur d'hydrogénation comprenant du nickel ou du platine dispersé sur un support, la mise en contact étant réalisée à une température comprise entre 100 et 400°C, à une pression comprise entre 0,5 et 8MPa et avec une vitesse volumétrique horaire de la charge liquide en entrée du réacteur comprise entre 0,5 et 5h-1, de manière à produire un effluent comprenant une charge d'hydrocarbures partiellement hydrogénée et du gaz; b) on met en contact, dans un réacteur, la charge partiellement hydrogénée issue de l'étape a) sous forme liquide, un flux gazeux comprenant de l'hydrogène et un catalyseur d'hydrogénation comprenant du nickel ou du platine dispersé sur un support, la mise en contact étant réalisée à une température comprise entre 100 et 400°C, à une pression comprise entre 0,5 et 8MPa, avec une vitesse volumétrique horaire la charge partiellement hydrogénée liquide comprise entre 0,3 et 8h-1, avec un rapport entre le volume d'hydrogène introduit et le volume de la charge partiellement hydrogénée compris entre 0,3 et 3 Nm3/m3 et avec un rapport entre le débit massique superficiel de la charge partiellement hydrogénée liquide et le débit massique superficiel de gaz (Ul/Ug) à l'entrée du réacteur compris entre 50 et 500. The invention relates to a process for the hydrogenation of aromatic compounds contained in a feedstock comprising hydrocarbons having at least five carbon atoms, the process comprising at least the following steps: a) said feedstock is contacted in a reactor, a gaseous flow comprising hydrogen and a hydrogenation catalyst comprising nickel or platinum dispersed on a support, the bringing into ...

PROCESS FOR HYDRODESULFURIZATION OF HYDROCARBON CUT

L'invention concerne un procédé de production concomitante d'au moins deux coupes d'hydrocarbures à basses teneurs en soufre à partir d'un mélange d'hydrocarbures ayant une température d'ébullition initiale comprise entre 35°C et 100°C et une température d'ébullition finale comprise entre 260°C et 340°C et ayant une eneur en soufre total comprise entre 30 et 10000 ppm poids. Le procédé comprend les étapes suivantes: a) une première étape d'hydrodésulfuration en présence d'hydrogène et d'un catalyseur d'hydrodésulfuration; b) une séparation du sulfure d'hydrogène de l'effluent partiellement désulfuré issu de l'étape a); c) une seconde étape d'hydrodésulfuration du mélange partiellement désulfuré issu de l'étape b) en présence d'hydrogène et d'un catalyseur d'hydrodésulfuration, la température de la seconde étape d'hydrodésulfuration étant supérieure à celle de la première étape d'hydrodésulfuration; d) un fractionnement du mélange désulfuré issu de l'étape c) en au moins deux coupes d'hydrocarbures légère et lourde désulfurées, la coupe d'hydrocarbures légère ayant une température d'ébullition comprise entre la température d'ébullition initiale et une température d'ébullition finale comprise entre 160°C et 220°C et dont la teneur en soufre total est inférieure à 50 ppm poids.

DEVICE AND METHOD FOR TRANSFERRING A SAMPLE OF FLUID BETWEEN TWO CHAMBERS AND APPLICATION IN PARTICULAR TO GAS CHROMATOGRAPHY.

PROCESS FOR THE DESULFURATION OF OLEFINIC ESSENCES COMPRISING AT LEAST TWO DISTINCT HYDRODESULFURATION STAGES

Device for distributing, mixing, injecting and/or extracting fluids

Device for distributing, mixing, injecting and/or extracting a number of fluids where there is a principal fluid A and at least one first secondary fluid B1 and a second secondary fluid B2. The device contains means to collect the principal fluid A which are connected to at least one mixing chamber, at least one primary injection and/or extraction circuit for the first secondary fluid B1 and a second injection and/or extraction circuit for the second secondary fluid B2. These circuits connect to the mixing chamber through one or more openings allowing the (B1 and B2) fluids to pass into or out of the chamber. The mixing chamber has at least one inlet for the principal fluid and at least one outlet. The device also contains means of redistributing the fluid from the mixing chamber. The injection and/or extraction circuits are distinct and placed near the mixing chamber at at least one of the chamber walls with a direction parallel to the axis of the device. Column allowing the separation of a fluid containing several separable components, comprising at least a first and second bed of solid granules separated by at least one of the above devices.

PROCESS FOR HYDRODESULFURING OLEFINIC ESSENCE

PROCESS FOR TREATING GASOLINE BY SEPARATING INTO THREE CUTS

PROCESS FOR THE PRODUCTION OF HIGH QUALITY KEROSENE AND DIESEL FUELS AND COPRODUCTION OF HYDROGEN FROM LIGHT SATURATED CUTS

Procédé de production majoritaire de carburants kérosène et diesel de haute qualité et de coproduction d'hydrogène à partir d'une coupe dite naphta léger à laquelle on peut ajouter une quantité quelconque de coupe LPG, faisant appel à l'enchaînement d'étapes suivant : déshydrogénation des paraffines, oligomerisation des oléfines et hydrogénation des oléfines oligomérisées, ledit procédé permettant la production de carburants kérosène et diesel aux spécifications du marché, voire améliorées par rapport à ces dernières. A process for the production of high quality kerosene and diesel fuels and the co-production of hydrogen from a so-called light naphtha fraction to which any amount of LPG cut can be added, using the following sequence of steps: dehydrogenation of paraffins, oligomerization of olefins and hydrogenation of oligomerized olefins, said process allowing the production of kerosene and diesel fuels to market specifications, or even improved with respect to the latter.

PROCESS FOR REMOVING THE ARSENIC FROM A HYDROCARBON LOAD

PROCESS FOR DESULFURIZING HYDROCARBONIC FRACTIONS RESULTING FROM VAPOCRACKING EFFLUENTS

La présente invention concerne un procédé de traitement d'une charge correspondant à une essence de pyrolyse comprenant :a) au moins une étape d'hydrogénation sélective appelée HD1 de la chargeb) un fractionnement dans une ou plusieurs colonnes de distillation de l'effluent de l'étape a) afin de produire, au moins une coupe légère C5, une coupe intermédiaire C6 ou C6-C7 ou C6-C8 destinée à la production d'aromatiques, une coupe lourde C7+ ou C8+ ou C9+ destinée à la production d'essencec) au moins une étape d'hydrodésulfuration et d'hydrogénation profonde de la coupe intermédiaire appelée HD2d) au moins une étape d'alkylation de la coupe lourde C7+, C8+ ou C9+ consistant en un traitement sur catalyseur acide qui permet un alourdissement des composés soufrése) au moins une étape de distillation de l'effluent de l'étape d) destinée à produire une fraction légère directement utilisable comme base essence à basse teneur en soufre, et une fraction lourde C11+ ou C12+ riche en composés soufrés et utilisée comme distillat moyen ou fuel. The present invention relates to a method for treating a feedstock corresponding to a pyrolysis gasoline comprising: a) at least one step of selective hydrogenation called HD1 of the feedb) a fractionation in one or more distillation columns of the effluent of step a) to produce at least one C5 light cut, C6 or C6-C7 or C6-C8 intermediate cut for the production of aromatics, a C7 + or C8 + or C9 + heavy cut for the production of essencec) at least one step of hydrodesulphurization and deep hydrogenation of the intermediate cut called HD2d) at least one alkylation step of the C7 +, C8 + or C9 + heavy cut consisting of an acid catalyst treatment which makes the compounds heavier. sulfurized) at least one step of distillation of the effluent of step d) intended to produce a light fraction which can be used directly as a low-sulfur gasoline base, and a C11 + heavy fraction or C12 + rich in sulfur ...

PROCESS FOR SOFTENING OF SULFIDE COMPOUNDS OF AN OLEFINIC ESSENCE

La présente invention concerne un procédé pour réduire la teneur en composés du type sulfure de formule R1-S-R2, avec R1 et R2 choisis parmi les radicaux méthyl (CH3) et éthyl (C2H5), d'une essence contenant des dioléfines, des mono-oléfines et du soufre, dans lequel: A) on met en contact dans un réacteur, l'essence en mélange avec une partie de la coupe essence légère recyclée de l'étape C) et de l'hydrogène et avec un catalyseur A comprenant au moins un métal du groupe VIb et au moins un métal non noble du groupe VIII déposés sur un support, de manière à produire un effluent ayant une teneur en dioléfines et une teneur en composés du type sulfure de formule R1-S-R2, avec R1 et R2 choisis parmi les radicaux méthyl (CH3) et éthyl (C2H5) plus faibles que celle de l'essence de départ; B) on envoie l'effluent issu de l'étape A) dans une colonne de fractionnement afin de séparer en tête une coupe d'essence légère contenant des hydrocarbures ayant moins de 6 atomes de carbone par molécule et en fond de la colonne une coupe essence lourde contenant des hydrocarbures ayant 6 et plus de 6 atomes de carbone par molécule; C) on recycle une partie de la coupe essence légère issue de l'étape B) dans le réacteur de l'étape A) avec un taux de recyclage compris entre 0,1 et 0,7.

Device for distributing, mixing, injecting and/or extracting fluids

Device for distributing, mixing, injecting and/or extracting a number of fluids where there is a principal fluid A and at least one first secondary fluid B1 and a second secondary fluid B2. The device contains means to collect the principal fluid A which are connected to at least one mixing chamber, at least one primary injection and/or extraction circuit for the first secondary fluid B1 and a second injection and/or extraction circuit for the second secondary fluid B2. These circuits connect to the mixing chamber through one or more openings allowing the (B1 and B2) fluids to pass into or out of the chamber. The mixing chamber has at least one inlet for the principal fluid and at least one outlet. The device also contains means of redistributing the fluid from the mixing chamber. The injection and/or extraction circuits are distinct and placed near the mixing chamber at at least one of the chamber walls with a direction parallel to the axis of the device. Column allowing the separation of a fluid containing several separable components, comprising at least a first and second bed of solid granules separated by at least one of the above devices.

PROCESS FOR PRODUCING LOW TEMPERATURE GASOLINE IN SULFUR AND MARCAPTANS

OLIGOMERIZATION METHOD USING A ZEOLITHIC CATALYST AND A CATALYST COMPRISING AN ALUMINA SILICA

On décrit un procédé d'oligomérisation de charges oléfiniques légères contenant entre 2 et 10 atomes de carbone par molécule, utilisant un système catalytique comprenant au moins un catalyseur comprenant au moins une silice alumine et au moins un catalyseur comprenant au moins une zéolithe possédant des ouvertures de pores contenant 10 ou 12 atomes d'oxygènes, ledit procédé étant mis en œuvre à une température comprise entre 130 et 350°C, à une pression comprise entre 0,1 et 10 MPa et à une vvh comprise entre 0,1 et 5 h-1.

PROCESS FOR THE DESULFURATION OF OLEFINIC ESSENCES

PROCESS FOR PRODUCING LOW TEMPERATURE GASOLINE IN SULFUR AND MARCAPTANS

La présente demande concerne un procédé de traitement d'une essence contenant des composés soufrés et des oléfines comprenant les étapes suivantes : a) une étape d'hydrodésulfuration de ladite essence afin de produire un effluent appauvri en soufre consistant à faire passer ladite essence en mélange avec de l'hydrogène sur au moins un catalyseur d'hydrodésulfuration b) une étape de séparation de l'essence partiellement désulfurée, de l'hydrogène introduit en excès ainsi que de l'H2S formé lors de l'étape a) c) une étape catalytique d'adoucissement de la l'essence désulfurée issue de l'étape b) qui réalise la conversion des mercaptans résiduels en thioéthers, via une réaction d'addition sur les oléfines. Figure 1 à publier. The present application relates to a process for treating a gasoline containing sulfur compounds and olefins comprising the following steps: a) a step of hydrodesulfurizing said gasoline in order to produce a sulfur-depleted effluent comprising passing said gasoline in a mixture with hydrogen on at least one hydrodesulphurization catalyst b) a step of separating the partially desulphurized gasoline, excess hydrogen introduced as well as the H2S formed during step a) c) a catalytic step of softening the desulfurized gasoline from step b) which converts the residual mercaptans into thioethers, via an addition reaction on the olefins. Figure 1 to publish.

SINGLE-PHASE FLUID DISPENSER-MIXER-EXTRACTOR FOR GRANULAR SOLID BEDS

PROCESS FOR HYDRODESULFURIZATION OF HYDROCARBON CUT

METHOD FOR OLIGOMERIZING LIGHT OLEFINS USING A REACTIONAL SECTION COMPRISING AT LEAST TWO PERMUTABLE REACTORS PROMOTING SELECTIVITY TO DISTILLATES

L'invention concerne un procédé de production de distillat moyens comprenant au moins une étape d'oligomérisation catalytique d'une charge comportant des oléfines comprenant de 3 à 9 atomes de carbone dans lequel la section réactionnelle comporte au moins deux réacteurs positionnés en série et permutables contenant chacun au moins un catalyseur des réactions d'oligomérisation, lesdits catalyseurs étant identiques ou différents, et dans lequel le réacteur le plus en aval selon le sens de circulation de ladite charge comportant des oléfines contient le catalyseur dont le temps d'utilisation est plus court que le temps d'utilisation des catalyseurs présents dans les autres réacteurs et opère à une température moyenne (WABTn) inférieure à la température moyenne (WABTn-1) du réacteur le précédant directement, l'écart entre lesdites températures moyennes étant d'au moins 10°C (WABTn-1 - WABTn ≥ 10°C). The invention relates to a method for the production of middle distillates comprising at least one catalytic oligomerization step of a feed comprising olefins comprising from 3 to 9 carbon atoms in which the reaction section comprises at least two reactors positioned in series and permutable. each containing at least one catalyst of the oligomerization reactions, said catalysts being identical or different, and wherein the reactor furthest downstream in the flow direction of said olefin-containing feed contains the catalyst whose operating time is longer than short of the time of use of the catalysts present in the other reactors and operates at a mean temperature (WABTn) below the average temperature (WABTn-1) of the reactor directly preceding it, the difference between said average temperatures being from minus 10 ° C (WABTn-1 - WABTn ≥ 10 ° C).

PROCESS FOR TREATING A GASOLINE

La présente invention concerne un procédé de traitement d'une essence contenant des composés soufrés, des oléfines et des dioléfines, comprenant les étapes suivantes : a) on fractionne l'essence de manière à récupérer au moins une coupe essence intermédiaire MCN comprenant des hydrocarbures et dont la différence de température (AT) entre les points à 5% et à 95% de masse distillée est inférieure à 60°C; b) on désulfure la coupe essence intermédiaire MCN seule et en présence d'un catalyseur d'hydrodésulfuration et de l'hydrogène de manière à produire une coupe essence intermédiaire MCN partiellement désulfurée ; et c) on fractionne dans une colonne de fractionnement la coupe essence intermédiaire MCN au moins partiellement désulfurée n'ayant pas subi de traitement catalytique postérieur à l'étape b) de manière à récupérer en tête de la colonne une essence intermédiaire à basses teneurs en soufre et en mercaptans et en fond de la colonne une coupe hydrocarbures contenant des composés soufrés dont des mercaptans. The present invention relates to a process for treating a gasoline containing sulfur compounds, olefins and diolefins, comprising the following steps: a) the gasoline is fractionated so as to recover at least one MCN intermediate gasoline cut comprising hydrocarbons and whose temperature difference (AT) between the points at 5% and at 95% of distilled mass is less than 60°C; b) desulfurizing the MCN intermediate gasoline cut alone and in the presence of a hydrodesulfurization catalyst and hydrogen so as to produce a partially desulfurized MCN intermediate gasoline cut; and c) the at least partially desulfurized MCN intermediate gasoline cut which has not undergone catalytic treatment subsequent to step b) is fractionated in a fractionation column so as to recover at the top of the column an intermediate gasoline with low sulfur and mercaptans and at the bottom of the column a hydrocarbon cut containing sulfur compounds including ...

METHOD FOR OLIGOMERIZING LIGHT OLEFINS USING A REACTIONAL SECTION COMPRISING AT LEAST TWO PERMUTABLE REACTORS PROMOTING SELECTIVITY TO DISTILLATES

L'invention concerne un procédé de production de distillat moyens comprenant au moins une étape d'oligomérisation catalytique d'une charge comportant des oléfines comprenant de 3 à 9 atomes de carbone dans lequel la section réactionnelle comporte au moins deux réacteurs positionnés en série et permutables contenant chacun au moins un catalyseur des réactions d'oligomérisation, lesdits catalyseurs étant identiques ou différents, et dans lequel le réacteur le plus en aval selon le sens de circulation de ladite charge comportant des oléfines contient le catalyseur dont le temps d'utilisation est plus court que le temps d'utilisation des catalyseurs présents dans les autres réacteurs et opère à une température moyenne (WABTn) inférieure à la température moyenne (WABTn-1) du réacteur le précédant directement, l'écart entre lesdites températures moyennes étant d'au moins 10°C (WABTn-1 - WABTn ≥ 10°C).

PROCESS FOR DEHYDRATION, DEACIDIFICATION AND SEPARATION OF CONDENSATE FROM NATURAL GAS

PROCESS FOR PRODUCING KEROSENE AND DIESEL FUELS FROM UNSATURATED UNSATURATED CUTTINGS AND AROMATIC CUTTINGS RICH IN BTX

Procédé de production de carburants kérosène et diesel à partir d'une coupe dite naphta craqué léger, à laquelle on peut ajouter une quantité quelconque de coupe LPG, et d'une coupe aromatique riche en BTX, faisant appel à une étape d'oligomérisation d'oléfines et d'alkylation des oléfines sur les aromatiques. A process for producing kerosene and diesel fuels from a so-called light cracked naphtha cut, to which any LPG cut can be added, and a BTX-rich aromatic cut, using an oligomerization step of olefins and alkylation of olefins on aromatics.

PROCESS FOR THE PRODUCTION OF HIGH QUALITY KEROSENE AND DIESEL FUELS AND COPRODUCTION OF HYDROGEN FROM LIGHT SATURATED CUTS

PROCESS FOR PRODUCING LOW SULFUR AND MERCAPTAN GASOLINE

La présente demande concerne un procédé de traitement d'une essence contenant des composés soufrés et des oléfines comprenant les étapes suivantes : α) une étape d'hydrodésulfuration de ladite essence afin de produire un effluent appauvri en soufre consistant à faire passer ladite essence en mélange avec de l'hydrogène sur au moins un catalyseur d'hydrodésulfuration b) une étape de séparation de l'essence partiellement désulfurée, de l'hydrogène introduit en excès ainsi que de l'H2S formé lors de l'étape a) c) une étape catalytique d'adoucissement de la l'essence désulfurée issue de l'étape b) qui réalise la conversion des mercaptans résiduels en thioéthers, via une réaction d'addition sur les oléfines. The present application relates to a process for treating a gasoline containing sulfur compounds and olefins, comprising the following steps: α) a step of hydrodesulphurizing said gasoline in order to produce a sulfur-depleted effluent comprising passing said gasoline in a mixture with hydrogen on at least one hydrodesulphurization catalyst b) a step of separating the partially desulphurized gasoline, excess hydrogen introduced as well as the H2S formed during step a) c) a catalytic step of softening the desulfurized gasoline from step b) which converts the residual mercaptans into thioethers, via an addition reaction on the olefins.

METHOD OF HYDROGENATING A HYDROCARBON LOAD COMPRISING AROMATIC COMPOUNDS

PROCESS FOR RECOVERY OF METHANOL CONTAINED IN A LIQUID HYDROCARBON FEEDSTOCK

La présente invention propose d'isoler les azéotropes formés dans une colonne de distillation (B1) par le méthanol, le propane et le butane. Les azéotropes sont ensuite liquéfiés dans l'échangeur de chaleur (E2) et mélangés dans le contacteur (M1) avec de l'eau afin de dissoudre le méthanol dans l'eau. Puis le mélange est introduit dans un bac de décantation (D2) pour séparer la phase aqueuse de la phase hydrocarbure liquide. Et enfin, on soutire une phase aqueuse contenant du méthanol et on recycle la phase hydrocarbure appauvrie en méthanol vers la colonne de distillation (B1) à titre de reflux. The present invention proposes to isolate the azeotropes formed in a distillation column (B1) with methanol, propane and butane. The azeotropes are then liquefied in the heat exchanger (E2) and mixed in the contactor (M1) with water in order to dissolve the methanol in the water. Then the mixture is introduced into a settling tank (D2) to separate the aqueous phase from the liquid hydrocarbon phase. Finally, an aqueous phase containing methanol is withdrawn and the hydrocarbon phase depleted in methanol is recycled to the distillation column (B1) under reflux.

HEAVY LOAD CONVERTING METHOD USING CATALYTIC CRACKING UNIT AND SELECTIVE HYDROGENATION STEP FROM CATALYTIC CRACKING GASOLINE

La présente invention décrit un procédé de conversion d'une charge lourde présentant une flexibilité pour la production de propylène, d'essence et de distillat moyen. Le procédé fait appel à une unité de craquage catalytique et une unité d'oligomérisation des oléfines en C4 à C9. Le procédé selon l'invention inclut une hydrogénation sélective de la coupe essence brute issue de l'unité de craquage catalytique, et une séparation entre une coupe essence légère et une coupe essence lourde, l'essence légère étant dirigée vers l'unité d'oligomérisation. The present invention describes a heavy load conversion process having flexibility for the production of propylene, gasoline and middle distillate. The process employs a catalytic cracking unit and a C4 to C9 olefin oligomerization unit. The method according to the invention includes a selective hydrogenation of the crude gasoline fraction from the catalytic cracking unit, and a separation between a light gasoline cut and a heavy gasoline cut, the light gasoline being directed to the gasoline unit. oligomerization.

PROCESS FOR SEPARATING ETHYL TERTIOBUTYL ETHER FROM MIXTURES

On décrit un procédé de séparation de l'éthyl tertiobutyl éther à partir de mélanges qu'il forme avec l'éthanol. Ce procédé comprend deux étapes de distillation, la première étant effectuée à une pression p1 supérieure ou égale à 1 bar, la seconde à une pression p2 inférieure à p1 d'une valeur DELTAp de 0,5 à 12 bars, p2 étant alors de 0,5 à 10 bars. Le distillat de deuxième colonne est en partie renvoyé comme reflux en tête de deuxième colonne et en partie recyclé vers la tête de première colonne. L'ETBE purifié est recueilli en fond de première colonne et l'éthanol purifié, en fond de deuxième colonne. Ce procédé de séparation peut être intégré à une unité de production d'ETBE comprenant l'éthérification par l'éthanol de l'isobutène contenu dans une coupe C4 de vapocraquage ou de craquage catalytique. L'éthanol séparé de l'ETBE est alors recyclé vers la zone d'éthérification. A process for the separation of ethyl tert-butyl ether from mixtures which it forms with ethanol is described. This process comprises two distillation steps, the first being carried out at a pressure p1 greater than or equal to 1 bar, the second at a pressure p2 less than p1 with a DELTAp value of 0.5 to 12 bars, p2 then being 0 , 5 to 10 bars. The second column distillate is partly returned as reflux to the top of the second column and partly recycled to the top of the first column. The purified ETBE is collected at the bottom of the first column and the purified ethanol at the bottom of the second column. This separation process can be integrated into an ETBE production unit comprising the ethanol etherification of the isobutene contained in a C4 cut from steam cracking or catalytic cracking. The ethanol separated from the ETBE is then recycled to the etherification zone.

PROCESS FOR SOFTENING OF SULFIDE COMPOUNDS OF AN OLEFINIC ESSENCE

La présente invention concerne un procédé pour réduire la teneur en composés du type sulfure de formule R1-S-R2, avec R1 et R2 choisis parmi les radicaux méthyl (CH3) et éthyl (C2H5), d'une essence contenant des dioléfines, des mono-oléfines et du soufre, dans lequel: A) on met en contact dans un réacteur, l'essence en mélange avec une partie de la coupe essence légère recyclée de l'étape C) et de l'hydrogène et avec un catalyseur A comprenant au moins un métal du groupe VIb et au moins un métal non noble du groupe VIII déposés sur un support, de manière à produire un effluent ayant une teneur en dioléfines et une teneur en composés du type sulfure de formule R1-S-R2, avec R1 et R2 choisis parmi les radicaux méthyl (CH3) et éthyl (C2H5) plus faibles que celle de l'essence de départ; B) on envoie l'effluent issu de l'étape A) dans une colonne de fractionnement afin de séparer en tête une coupe d'essence légère contenant des hydrocarbures ayant moins de 6 atomes de carbone par molécule et en fond de la colonne une coupe essence lourde contenant des hydrocarbures ayant 6 et plus de 6 atomes de carbone par molécule; C) on recycle une partie de la coupe essence légère issue de l'étape B) dans le réacteur de l'étape A) avec un taux de recyclage compris entre 0,1 et 0,7. The present invention relates to a process for reducing the content of compounds of the sulfide type of formula R1-S-R2, with R1 and R2 chosen from methyl (CH3) and ethyl (C2H5) radicals, of a gasoline containing diolefins, mono-olefins and sulfur, in which: A) is brought into contact in a reactor, gasoline mixed with part of the recycled light gasoline cut from stage C) and hydrogen and with a catalyst A comprising at least one metal from group VIb and at least one non-noble metal from group VIII deposited on a support, so as to produce an effluent having a content of diolefins and a content of compounds of the sulphide type of formula R1-S-R2, with R1 and R2 chosen ...

PROCESS FOR DESULFURIZING HYDROCARBONIC FRACTIONS RESULTING FROM VAPOCRACKING EFFLUENTS

Method for hydrotreatment of a naphtha

PROCESS FOR THE PRODUCTION OF A GASOLINE WITH LOW SULFUR AND MERCAPTANS

L’invention concerne un procédé de traitement d'une essence comprenant les étapes suivantes:a) une étape d'hydrodésulfuration en présence d’un catalyseur comprenant un support d’oxyde et une phase active comprenant un métal du groupe VIB et un métal du groupe VIII,b) une étape d'hydrodésulfuration à une température plus élevée que celle de l’étape a) et en présence d’un catalyseur comprenant un support d’oxyde et une phase active constituée d’au moins un métal du groupe VIII,c) une étape de fractionnement de façon à produire une phase gazeuse, une coupe essence intermédiaire et une coupe essence lourde,d) une étape d'hydrodésulfuration à faible rapport hydrogène/charge et en présence d’un catalyseur d'hydrodésulfuration comprenant un support d’oxyde et une phase active comprenant un métal du groupe VIB et un métal du groupe VIII ou une phase active constituée d’au moins un métal du groupe VIII,e) une étape de séparation de l'H2S formé. The invention relates to a process for treating a gasoline comprising the following steps: a) a hydrodesulfurization step in the presence of a catalyst comprising an oxide support and an active phase comprising a metal from group VIB and a metal from group VIII, b) a hydrodesulfurization step at a temperature higher than that of step a) and in the presence of a catalyst comprising an oxide support and an active phase consisting of at least one metal from group VIII , c) a fractionation step so as to produce a gas phase, an intermediate gasoline cut and a heavy gasoline cut, d) a hydrodesulfurization step with a low hydrogen / charge ratio and in the presence of a hydrodesulfurization catalyst comprising a oxide support and an active phase comprising a metal from group VIB and a metal from group VIII or an active phase consisting of at least one metal from group VIII, e) a step of separating the H2S formed.

Device (DME) for distributing, mixing, injecting, and/or removing several fluids

PROCESS FOR REMOVING THE ARSENIC FROM A HYDROCARBON LOAD

L'invention concerne un procédé d'élimination d'arsenic d'une charge d'hydrocarbures au moins en partie liquide comprenant au moins les étapes suivantes: a) on met en contact la charge d'hydrocarbures, de l'hydrogène et une première masse de captation comprenant un support et au moins un métal M1 du groupe VIB et au moins deux métaux M2 et M3 du groupe VIII; b) on met en contact la charge d'hydrocarbures, de l'hydrogène et une seconde masse de captation sous forme sulfure comprenant un support et du nickel, la teneur en nickel étant d'au moins 5% poids de NiO par rapport au poids total de la seconde masse de captation, dans lequel l'étape a) est soit réalisée avant l'étape b), soit réalisée simultanément avec l'étape b). The invention relates to a process for removing arsenic from an at least partly hydrocarbon feedstock comprising at least the following steps: a) contacting the hydrocarbon feedstock, hydrogen and a first capture mass comprising a support and at least one Group VIB M1 metal and at least two Group VIII M2 and M3 metals; b) the hydrocarbon charge, hydrogen and a second sulphide uptake mass comprising a support and nickel are brought into contact, the nickel content being at least 5% by weight NiO with respect to the weight total of the second capture mass, wherein step a) is either performed before step b), or performed simultaneously with step b).

PROCESS FOR TREATING A GASOLINE

La présente invention concerne un procédé de traitement d'une essence contenant des composés soufrés, des oléfines et des dioléfines, comprenant les étapes suivantes : a) on fractionne l'essence de manière à récupérer au moins une coupe essence intermédiaire MCN comprenant des hydrocarbures et dont la différence de température (AT) entre les points à 5% et à 95% de masse distillée est inférieure à 60°C; b) on désulfure la coupe essence intermédiaire MCN seule et en présence d'un catalyseur d'hydrodésulfuration et de l'hydrogène de manière à produire une coupe essence intermédiaire MCN partiellement désulfurée ; et c) on fractionne dans une colonne de fractionnement la coupe essence intermédiaire MCN au moins partiellement désulfurée n'ayant pas subi de traitement catalytique postérieur à l'étape b) de manière à récupérer en tête de la colonne une essence intermédiaire à basses teneurs en soufre et en mercaptans et en fond de la colonne une coupe hydrocarbures contenant des composés soufrés dont des mercaptans. The present invention relates to a process for treating a gasoline containing sulfur compounds, olefins and diolefins, comprising the following steps: a) the gasoline is fractionated so as to recover at least one intermediate gasoline fraction MCN comprising hydrocarbons and the difference in temperature (AT) between the 5% and 95% distilled mass points is less than 60 ° C; b) the intermediate gasoline fraction MCN is desulfurized alone and in the presence of a hydrodesulphurization catalyst and hydrogen so as to produce a partly desulphurized intermediate gasoline fraction MCN; and c) fractionating in a fractionating column the at least partially desulphurized intermediate gasoline fraction MCN that has not undergone catalytic treatment subsequent to step b) so as to recover at the top of the column an intermediate gasoline at low levels of sulfur and mercaptans and at the bottom of the column a hydrocarbon cut containing sulfur ...

MIXING CHAMBER PROVIDED WITH INJECTION AND / OR SOLDERING HOLES FOR OPTIMIZING THE MIXING FUNCTION

Patent IN171908B

Hydrotreatment process for naphtha

L’invention est un procédé d’hydrotraitement de naphta, utilisant au moins trois catalyseurs, comprenant :- une première étape a) en présence du premier catalyseur comprenant un support;- une deuxième étape b) en présence du deuxième catalyseur comprenant un support et une phase active, ladite phase active contenant un métal du groupe 9 ou 10 et un métal du groupe 6;- une troisième étape c) en présence du troisième catalyseur comprenant un support et une phase active, ladite phase active contenant un métal du groupe 6;- la teneur en métal du groupe 6 du troisième catalyseur est inférieure à la teneur en métal du groupe 6 dudit deuxième catalyseur;- le rapport de la «surface spécifique chargée» dudit premier catalyseur sur celle dudit deuxième catalyseur est supérieur ou égal à 1,20;- le rapport de la «surface spécifique chargée» dudit troisième catalyseur sur celle dudit deuxième catalyseur est supérieur à 1,07. Figure 1 à publier The invention is a process for hydrotreating naphtha, using at least three catalysts, comprising:- a first step a) in the presence of the first catalyst comprising a support;- a second step b) in the presence of the second catalyst comprising a support and an active phase, said active phase containing a metal from group 9 or 10 and a metal from group 6;- a third stage c) in the presence of the third catalyst comprising a support and an active phase, said active phase containing a metal from group 6 ;- the group 6 metal content of the third catalyst is lower than the group 6 metal content of said second catalyst;- the ratio of the "charged specific surface area" of said first catalyst to that of said second catalyst is greater than or equal to 1 .20;- the ratio of the “charged specific surface” of said third catalyst to that of said second catalyst is greater than 1.07. Figure 1 to be published

FUEL TREATMENT PROCEDURE

Un procedimiento de tratamiento de un combustible que contiene los compuestos de azufre, las olefinas y las diolefinas, que comprende las siguientes etapas: a) se fracciona el combustible de manera de recuperar al menos un corte combustible intermedio MCN que comprende los hidrocarburos y cuya diferencia de temperatura (DT) entre los puntos a 5% y a 95% de masa destilada es inferior a 60ºC; b) se desulfura el corte combustible intermedio MCN solo y en presencia de un catalizador de hidrodesulfuración y del hidrógeno de manera de producir un corte combustible intermedio MCN parcialmente desulfurado; y c) se fracciona en una columna de fraccionamiento el corte combustible intermedio MCN al menos parcialmente desulfurado que no ha sufrido tratamiento catalítico posterior a la etapa b) de manera de recuperar en cabeza de la columna un combustible intermedio con bajos tenores en azufre y en mercaptanos y en el fondo de la columna un corte hidrocarburos que contiene los compuestos de azufre entre ellos los mercaptanos. A method of treating a fuel containing sulfur compounds, olefins and diolefins, which comprises the following steps: a) the fuel is fractionated so as to recover at least one MCN intermediate fuel cut comprising hydrocarbons and whose difference of temperature (DT) between the points at 5% and 95% distilled mass is below 60 ° C; b) the MCN intermediate fuel section is desulphurized alone and in the presence of a hydrodesulphurization catalyst and hydrogen in order to produce a partially desulfurized MCN intermediate fuel section; and c) the at least partially desulfurized MCN intermediate fuel section which has not undergone catalytic treatment after step b) is fractionated in a fractionation column so as to recover an intermediate fuel with low sulfur and mercaptans in the head of the column and at the bottom of the column a hydrocarbon section containing the sulfur compounds including mercaptans.

Hydrotreatment process for naphtha

L’invention est un procédé d’hydrotraitement de naphta, utilisant au moins trois catalyseurs, comprenant :- une première étape a) en présence du premier catalyseur comprenant un support;- une deuxième étape b) en présence du deuxième catalyseur comprenant un support et une phase active, ladite phase active contenant un métal du groupe 9 ou 10 et un métal du groupe 6;- une troisième étape c) en présence du troisième catalyseur comprenant un support et une phase active, ladite phase active contenant un métal du groupe 6;- la teneur en métal du groupe 6 du troisième catalyseur est inférieure à la teneur en métal du groupe 6 dudit deuxième catalyseur;- le rapport de la «surface spécifique chargée» dudit premier catalyseur sur celle dudit deuxième catalyseur est supérieur ou égal à 1,20;- le rapport de la «surface spécifique chargée» dudit troisième catalyseur sur celle dudit deuxième catalyseur est supérieur à 1,07. Figure 1 à publier

PROCESS FOR DEHYDRATING AN AQUEOUS ALCOHOL MIXTURE COMPRISING AT LEAST METHANOL AND ETHANOL

Procédé de déshydratation d'un mélange aqueux d'alcools renfermant du méthanol et de l'éthanol et éventuellement des alcools supérieurs. On fractionne C1 le mélange d'alcools. Une partie au moins de l'éthanol avec les alcools supérieurs est soutirée en fond 2 et extraite C2 par un hydrocarbure 8. L'eau est évacuée 7. L'extrait 12 est fractionné C3 et C4 . On recueille du méthanol déshydraté 5 et de l'éthanol déshydraté 21 que l'on peut mélanger. La chaleur nécessaire au chauffage de la colonne C3 résulte de la condensation des vapeurs de tête de la colonne C1 dans l'échangeur R. Application à la fabrication d'un mélange carburant pour automobiles. Process for the dehydration of an aqueous mixture of alcohols containing methanol and ethanol and optionally higher alcohols. The mixture of alcohols is fractionated C1. At least part of the ethanol with the higher alcohols is drawn off at the bottom 2 and extracted C2 with a hydrocarbon 8. The water is discharged 7. The extract 12 is fractionated C3 and C4. Dehydrated methanol 5 and dehydrated ethanol 21 are collected which can be mixed. The heat required for heating column C3 results from the condensation of the top vapors from column C1 in exchanger R. Application to the manufacture of a fuel mixture for automobiles.

Method for desulfurising olefin motor gasoline

The invention relates to a method for producing a motor gasoline having a low-sulphur content and an olefin controlled content comprising an olefin feed oligomerisation stage (stage i), a stage (ii) consisting in mixing a branched olefin motor gasoline produced at the stage (i) with a sulphur and olefin-rich motor gasoline, a stage (iii) for the hydrodesulfurisation of said mixture and a stage (iv) for separating the thus formed H2S.

Method for treating a gasoline

PROCESS FOR SEPARATING PARAXYLENE COMPRISING ADSORPTION WITH WATER INJECTION AND CRYSTALLIZATION

On décrit un procédé de séparation de paraxylène en lit mobile simulé à partir d'une charge en C8 comprenant une étape d'adsorption sur une zéolithe et de désorption par un désorbant délivrant un extrait et un raffinat et une étape de cristallisation de l'extrait. On introduit un débit d'eau dans la charge, dans le désorbant et/ou dans un courant de recyclage d'un flux dans la colonne, tel que la moyenne pondérée des teneurs en eau mesurée dans l'extrait et dans le raffinat soit comprise entre 1 et 200 ppm. Le rapport S/F du débit de désorbant sur celui de la charge lors de l'étape d'adsorption et de désorption est compris entre 0,6 et 2,5.

Process of dehydration, of deacification and of separation of a condensate from a natural gas

Method for sweetening an olefinic petrol of sulphide-type compounds

Process for recovering methanol from a liquid hydrocarbon charge

La présente invention propose d'isoler les azéotropes formés dans une colonn e de distillation (B1) par le méthanol, le propane et le butane. Les azéotropes sont ensuite liquéfiés dans l'échangeur de chaleur (E2) et mélangés dans le contacteur (M 1) avec de l'eau afin de dissoudre le méthanol dans l'eau. Puis le mélange est introdui t dans un bac de décantation (D2) pour séparer la phase aqueuse de la phase hydrocarbure liquide. Et enfin, on soutire une phase aqueuse contenant du méthanol et on recycle la phase hydrocarbure appauvrie en méthanol vers la colonne de distillation (B1) à titre de reflux . The present invention proposes to isolate the azeotropes formed in a distillation column (B1) with methanol, propane and butane. The azeotropes are then liquefied in the heat exchanger (E2) and mixed in the contactor (M 1) with water in order to dissolve the methanol in the water. Then the mixture is introduced into a settling tank (D2) to separate the aqueous phase from the liquid hydrocarbon phase. Finally, an aqueous phase containing methanol is drawn off and the hydrocarbon phase depleted in methanol is recycled to the distillation column (B1) as reflux.

OLIGOMERIZATION METHOD USING A ZEOLITHIC CATALYST AND A CATALYST COMPRISING AN ALUMINA SILICA

On décrit un procédé d'oligomérisation de charges oléfiniques légères contenant entre 2 et 10 atomes de carbone par molécule, utilisant un système catalytique comprenant au moins un catalyseur comprenant au moins une silice alumine et au moins un catalyseur comprenant au moins une zéolithe possédant des ouvertures de pores contenant 10 ou 12 atomes d'oxygènes, ledit procédé étant mis en œuvre à une température comprise entre 130 et 350°C, à une pression comprise entre 0,1 et 10 MPa et à une vvh comprise entre 0,1 et 5 h-1. A process for the oligomerization of light olefinic feeds containing between 2 and 10 carbon atoms per molecule, using a catalyst system comprising at least one catalyst comprising at least one silica-alumina and at least one catalyst comprising at least one zeolite having openings of pores containing 10 or 12 oxygen atoms, said process being carried out at a temperature between 130 and 350 ° C, at a pressure of between 0.1 and 10 MPa and at a vvh of between 0.1 and 5 h -1.

Method for separating ethyl tert-butyl ether from mixtures with ethanol

A method is described for separating ethyl tert-butyl ether from mixtures which it forms with ethanol. …<??>This method is based on a heteroazeotropic distillation using water as the third entraining body. It employs two distillation columns, coupled with a settler at the head. The purified ethanol is collected at the bottom of the first column and the purified ETBE at the bottom of the second column. …<??>This method of separation can be integrated with a unit for the production of ETBE comprising the etherification by ethanol of the isobutene contained in a C4 cut from steam cracking, from catalytic cracking or from dehydrogenation of isobutane. The ethanol which has been separated from the ETBE is then recycled in the etherification region. …<IMAGE>…

Method for removing arsenic from a hydrocarbon feedstock

PROCESS FOR SEPARATING ETHYL TERTIOBUTYL ETHER FROM MIXTURES WITH ETHANOL

On décrit un procédé de séparation de l'éthyl tertiobutyl éther à partir de mélanges qu'il forme avec l'éthanol. Ce procédé est basé sur une distillation hétéroazéotropique mettant en jeu de l'eau comme tiers corps entraîneur. Il met en œuvre deux colonnes de distillation, couplées avec un décanteur en tête. L'éthanol purifié est recueilli en fond de première colonne et l'ETBE purifié, en fond de deuxième colonne. Ce procédé de séparation peut être intégré à une unité de production d'ETBE comprenant l'éthérification par l'éthanol de l'isobutène contenu dans une coupe C4 de vapocraquage, de craquage catalytique ou de déshydrogénation d'isobutane. L'éthanol séparé de l'ETBE est alors recyclé dans la zone d'éthérification. A process for the separation of ethyl tert-butyl ether from mixtures which it forms with ethanol is described. This process is based on a heteroazeotropic distillation involving water as a third entraining body. It uses two distillation columns, coupled with an overhead decanter. The purified ethanol is collected at the bottom of the first column and the purified ETBE at the bottom of the second column. This separation process can be integrated into an ETBE production unit comprising the ethanol etherification of the isobutene contained in a C4 cut of steam cracking, catalytic cracking or isobutane dehydrogenation. The ethanol separated from the ETBE is then recycled to the etherification zone.

Process and apparatus for the dehydration, deacidification, and separation of a condensate from a natural gas

The invention relates to a process and apparatus for the treatment of a gas containing methane, water, at least one hydrocarbon other than methane, as well as at least one acid gas.

PROCESS FOR SEPARATING ETHYL TERTIOBUTYL ETHER FROM MIXTURES.

Process for the separation of ethyltertiobutyl ether and ethanol

On décrit un procédé de séparation de l'éthyl tertiobutyl éther à partir de mélanges qu'il forme avec l'éthanol. Ce procédé comprend deux étapes de distillation, la première étant effectuée à une pression p1 supérieure ou égale à 1 bar, la seconde à une pression p2 inférieure à p1 d'une valeur .DELTA.p de 0,5 à 12 bars, p2 étant alors de 0,5 à 10 bars. Le distillat de deuxième colonne est en partie renvoyé comme reflux en tête de deuxième colonne et en partie recyclé vers la tête de première colonne. L'ETBE purifié est recueillien fond de première colonne et l'éthanol purifié, en fond de deuxième colonne. Ce procédé de séparation peut être intégré à une unité de production d'ETBE comprenant l'éthérification par l'éthanol d'une coupe C4 de vapocraquage ou de craquage catalytique. L'éthanol séparé est alors recyclé vers la zone d'éthérification. A process for the separation of ethyl tert-butyl ether from mixtures which it forms with ethanol is described. This process comprises two distillation steps, the first being carried out at a pressure p1 greater than or equal to 1 bar, the second at a pressure p2 lower than p1 with a value .DELTA.p of 0.5 to 12 bars, p2 being then from 0.5 to 10 bars. The second column distillate is partly returned as reflux to the head of the second column and partly recycled to the head of the first column. The purified ETBE is collected at the bottom of the first column and the purified ethanol is collected at the bottom of the second column. This separation process can be integrated into an ETBE production unit comprising etherification with ethanol of a C4 cut of steam cracking or catalytic cracking. The separated ethanol is then recycled to the etherification zone.

PROCESS FOR DEHYDRATION OF AN AQUEOUS MIXTURE OF ALCOHOLS COMPRISING AT LEAST METHANOL AND ETHANOL

Method for treating a gasoline

PROCESS FOR SEPARATING ETHYL TERTIOBUTYL ETHER AND ETHANOL.

Method of separating ethyl-tert-buthyl-ether and ethanol

METHOD FOR SEPARATING PARA-XYLOL CONTAINING AN ABSORPTION WITH WATER INJECTION AND A CRYSTALIZATION

Method of deep sulphur removal from cracked petrol with minimum loss of octane number

METHOD FOR DRAINING, DEACURIZING AND SEPARATING A CONDENSATE FROM A NATURAL GAS.

Method for removing arsenic from a hydrocarbon feedstock

PROCESS FOR HYDRODESULFURING OLEFINIC ESSENCE

La présente invention concerne un procédé de traitement d'une essence contenant des composés soufrés, des oléfines et des dioléfines, comprenant les étapes suivantes: a) on fractionne l'essence en au moins : • une coupe essence légère LCN; • une coupe essence intermédiaire MCN primaire; et • une coupe essence lourde HHCN primaire; b) on désulfure la coupe essence intermédiaire MCN primaire seule de manière à produire une coupe essence intermédiaire MCN primaire au moins partiellement désulfurée ; c) on désulfure la coupe essence lourde HHCN primaire seule de manière à produire une coupe lourde HHCN primaire au moins partiellement désulfurée; d) on envoie en mélange la coupe essence intermédiaire MCN primaire partiellement désulfurée et la coupe lourde HHCN primaire partiellement désulfurée dans une colonne de séparation de manière à séparer un flux gazeux contenant de l'hydrogène et de l'H2S, une coupe essence intermédiaire MCN secondaire à basses teneurs en soufre et en mercaptans et une coupe essence lourde HHCN secondaire contenant des composés soufrés dont des mercaptans de recombinaison; e) on désulfure la coupe essence lourde HHCN secondaire issue de l'étape d).

Method of desulphurating hydrocarbon fractions from steam cracking effluent

Treating charge of pyrolysis gasoline comprises: at least selective hydrogenation of charge called HD1; fractionating of hydrogenation effluent in more distillation columns to produce light cut C5, C6 intermediate cut or C6-C7 or C6-C8, and heavy cut C7+ or C8+ or C9+; hydrodesulfurization and deep hydrogenation of intermediate cut called HD2; at least alkylation of heavy cut C7+, C8+ and C9+ comprising treatment on acid catalyst; and distillation of alkylation effluent to produce light fraction of low sulfur content and heavy fraction C11+ or C12+ rich in sulfur content. Treating a charge of pyrolysis gasoline comprises: at least selective hydrogenation of the charge called HD1; fractionating of hydrogenation effluent in more distillation columns to produce at least a light cut C5, C6 intermediate cut or C6-C7 or C6-C8 intended to produce of aromatics, and a heavy cut C7+ or C8+ or C9+ intended to produce gasoline; hydrodesulfurization and deep hydrogenation of the intermediate cut called HD2; at least alkylation of heavy cut C7+, C8+ and C9+ comprising a treatment on acid catalyst which causes a heaviness of sulfur compounds; and at least distillation of the alkylation effluent to produce a light fraction of low sulfur content directly used as gasoline base, and a heavy fraction C11+ or C12+ rich in sulfur content used as a medium distillate or fuel.

DISPENSER FOR INDEPENDENT INJECTION AND / OR SUPPLY OF FLUIDS

DEVICE AND METHOD FOR TRANSFERRING A FLUID SAMPLE BETWEEN TWO CHAMBERS AND APPLICATION IN PARTICULAR TO GAS CHROMATOGRAPHY.

- La présente invention concerne un dispositif et un procédé pour transférer un échantillon de fluide d'une première chambre (1) à une deuxième chambre (2) séparée de la première chambre (1). - Le procédé selon l'invention se caractérise en ce que l'on effectue les étapes successives suivantes: - on ouvre une cavité définie par les extrémités de deux tiges (5, 6) coaxiales cylindriques, ayant des parois cylindriques de même dimensions, - on ferme ladite cavité dans ladite première chambre (1), on transfère ladite cavité de ladite première chambre (1) à ladite deuxième chambre (2) par une translation axiale desdites tiges (5, 6) relativement auxdites chambres, et - on ouvre ladite cavité dans ladite deuxième chambre (2). - Application à la chromatographie en phase gazeuse.

Process for the recovery of methanol in a liquid hydrocarbon feedstock

Device for distributing, mixing, injecting and/or extracting fluids

Device for distributing, mixing, injecting and/or extracting a number of fluids where there is a principal fluid A and at least one first secondary fluid B1 and a second secondary fluid B2. The device contains means to collect the principal fluid A which are connected to at least one mixing chamber, at least one primary injection and/or extraction circuit for the first secondary fluid B1 and a second injection and/or extraction circuit for the second secondary fluid B2. These circuits connect to the mixing chamber through one or more openings allowing the (B1 and B2) fluids to pass into or out of the chamber. The mixing chamber has at least one inlet for the principal fluid and at least one outlet. The device also contains means of redistributing the fluid from the mixing chamber. The injection and/or extraction circuits are distinct and placed near the mixing chamber at at least one of the chamber walls with a direction parallel to the axis of the device. Column allowing the separation of a fluid containing several separable components, comprising at least a first and second bed of solid granules separated by at least one of the above devices.

PROCESS FOR TREATMENT OF A GASOLINE BY SEPARATION IN THREE COURTS

processo para o tratamento de uma gasolina por separação em três cortes. a presente invenção refere-se a um processo para a dessulfuração de um corte de gasolina contendo compostos contendo enxofre, olefinas e diolefinas, compreendendo pelo menos as seguintes etapas: a) fracionar a gasolina a fim de recuperar um corte leve de gasolina lcn e um primeiro corte pesado de gasolina hcn; b) realizar uma primeira etapa para dessulfuração do primeiro corte pesado de gasolina hcn; c) condensar parcialmente o primeiro efluente de dessulfu-ração obtido a partir da etapa b) de modo a produzir uma fase gasosa constituída essencialmente por hidrogênio e h2s e uma fase de hidro-carboneto líquido de hcn compreendendo h2s dissolvido; d) separar a fase de hidrocarboneto líquido de hcn em um corte intermediário de gasolina mcn e um segundo corte pesado de gasolina hhcn; e) realizar uma segunda etapa para a dessulfuração do se-gundo corte pesado de gasolina hchc.

PROCESS FOR PRODUCING LOW SULFUR AND MERCAPTAN GASOLINE

Method for producing a gasoline having a low sulfur and mercaptan content

The present invention relates to a method for treating a gasoline, comprising the following steps: a) a step of hydrodesulfurization in the presence of a catalyst comprising an oxide support and an active phase having a group VIB metal and a group VIII metal, b) a step of hydrodesulfurization at a higher temperature than that of step a) and in the presence of a catalyst comprising an oxide support and an active phase having at least one group VIII metal, c) a separation step for producing a gaseous phase, an intermediate gasoline cut and a heavy gasoline cut, d) a step of hydrodesulfurization with a low hydrogen/feed ratio and in the presence of a hydrodesulfurization catalyst comprising an oxide support and an active phase having a group VIB metal and a group VIII metal or an active phase having at least one group VIII metal, e) a step of separating the H 2 S formed.

PROCEDURE FOR DESULFURATION OF HYDROCARBON FRACTIONS FROM VAPOCRAQUE EFFLUENTS.

Procedimiento de tratamiento de un efluente de vapocraqueo de hidrocarburos que corresponde a una fracción que tiene una temperatura de ebullición comprendida entre 0ºC y 250ºC que comprende: a) al menos una etapa de hidrogenación selectiva, llamada HD1, de la carga b) un fraccionamiento en una o más columnas de destilación del efluente de la etapa a) para producir, al menos una fracción ligera C5, una fracción intermedia C6 o C6-C7 o C6-C8 para la producción de aromáticos, una fracción pesada C7+ o C8+ o C9+ para la producción de gasolina c) al menos una etapa de hidrodesulfuración y de hidrogenación profunda de la fracción intermedia llamada HD2 d) al menos una etapa de alquilación de la fracción pesada C7+, C8+ o C9+ en mezcla con una parte de la fracción ligera C5 a una temperatura comprendida entre 30ºC y 300ºC, a una velocidad espacial horaria comprendida entre 0,05 h-1 y 5 h-1 y a una presión comprendida entre 1,0 MPa y 4,0 MPa, consistiendo dicha etapa de alquilación en un tratamiento sobre catalizador ácido sólido seleccionado entre el grupo constituido por resinas ácidas de intercambio iónico, zeolitas, arcillas, sílices funcionalizadas, silico-aluminatos que presentan acidez y soportes injertados con grupos funcionales ácidos, permitiendo dicho catalizador ácido que los compuestos azufrados se hagan más pesados e) al menos una etapa de destilación del efluente de la etapa d) para producir una fracción ligera directamente utilizable como base de gasolina con bajo contenido de azufre, y una fracción pesada C11+ o C12+ rica en compuestos azufrados y utilizada como destilado medio o fuel. Method of treating a hydrocarbon vapocracking effluent corresponding to a fraction having a boiling temperature between 0 ° C and 250 ° C comprising: a) at least one stage of selective hydrogenation, called HD1, of the charge b) a fractionation into one or more effluent distillation columns from step a) to produce, at least a light fraction C5, an intermediate fraction C6 or ...

Process for converting a heavy feed using a catalytic cracking unit and a step for selective hydrogenation of the gasoline obtained from catalytic cracking

THE PRESENT INVENTION DESCRIBES A PROCESS FOR CONVERTING A HEAVY FEED WHICH IS FLEXIBLE FOR THE PRODUCTION OF PROPYLENE, GASOLINE AND MIDDLE DISTILLATE. THE PROCESS USES A CATALYTIC CRACKING UNIT AND A UNIT FOR THE OLIGOMERIZATION OF C4 TO C9 OLEFINS. THE PROCESS OF THE INVENTION INCLUDES SELECTIVE HYDROGENATION OF THE UNREFINED GASOLINE CUT OBTAINED FROM THE CATALYTIC CRACKING UNIT AND SEPARATION BETWEEN A LIGHT GASOLINE CUT AND A HEAVY GASOLINE CUT, THE LIGHT GASOLINE BEING DIRECTED TO THE OLIGOMERIZATION UNIT.

Process for eliminating arsenic from a hydrocarbon feed

Process for the treatment of a gasoline.

La presente invención se refiere a un proceso de tratamiento de una gasolina que contiene compuestos azufrados, olefinas y diolefinas, que comprende las siguientes etapas: a) se fracciona la gasolina de manera para recuperar al menos un corte de gasolina intermedia MCN que comprende hidrocarburos, y donde la diferencia de temperatura (?T) entre los puntos a 5% y a 95% de masa destilada es inferior o igual a 60°C. b) se desazufra el corte de gasolina intermedio MCN solo y en presencia de un catalizador de hidrodesazuframiento y de hidrógeno, de manera para producir un corte de gasolina intermedia MCN parcialmente desazufrada, y c) se fracciona en una columna de fraccionamiento el corte de gasolina intermedia MCN al menos parcialmente desazufrada, que no ha sufrido tratamiento catalítico posterior a la etapa b), de manera para recuperar en la cabeza de la columna una gasolina intermedia con bajas proporciones de azufre y de mercaptanos, y en el fondo de la columna, un corte de hidrocarburos que contiene compuestos azufrados tales como los mercaptanos.