Abstract: A process for dehydration of an ethanol feedstock into ethylene, comprising the vaporization of said ethanol feedstock in a mixture with at least a portion of the recycled purified water stream from heat exchange with the effluent that is obtained from the last reactor.

Abstract: The invention deals with hydrocarbon feedstock molecular weight increase via olefin oligomerization and/or olefin alkylation onto aromatic rings. Addition of a purification section allows improved unit working time and lower maintenance.

Abstract: The present invention is a process to make propylene comprising: a) providing a reaction zone containing a catalyst; b) introducing a feedstock comprising ethylene, dimethyl ether or methanol and dimethyl ether comprising at least 1000 wppm of dimethyl ether, optionally steam into said reaction zone and into contact with said catalyst; c) operating said reaction zone at temperature and pressure conditions to produce an effluent comprising propylene, hydrocarbons, steam, optionally unconverted methanol and/or unconverted dimethyl ether and optionally unconverted ethylene; d) sending the effluent of step c) to a fractionation zone to recover propylene optionally methanol and for dimethyl ether and optionally ethylene; e) optionally recycling at least a part of methanol and for dimethyl ether and optionally recycling at least a part of ethylene to the reaction zone at step b); wherein the catalyst is an acid and the temperature at the inlet of the reaction zone is under 280° C.

Abstract: The present invention (in a first embodiment) relates to a process for the dehydration of an alcohol having at least 2 carbon atoms to make the corresponding olefin, comprising: introducing in a reactor a stream (A) comprising at least an alcohol, optionally water, optionally an inert component, contacting said stream with a catalyst in said reactor at conditions effective to dehydrate at least a portion of the alcohol to make an olefin, recovering from said reactor an olefin containing stream (B), Wherein, the catalyst is a crystalline silicate of the group FER, MWW, EUO, MFS, ZSM-48, MIT or TON having Si/Al under 100, or a dealuminated crystalline silicate of the group FER, MWW, EUO, MFS, ZSM-48, MTT or TON having Si/Al under 100, or a phosphorus modified crystalline silicate of the group FER, MWW, EUO, MFS, ZSM-48, MTT or TON having Si/Al under 100, the WHSV of the alcohol is at least 4 h?1 and/or the temperature ranges from 320° C. to 600° C.

Abstract: The present invention relates to a process allowing the tuning of the gasoline/diesel balance by converting an initial feedstock containing olefins from 4 to 20 carbon atoms using a crystalline catalyst with reduced diffusional limitations. The process comprises: processing a feedstock stream containing olefins from 4 to 20 carbon atoms with or without the presence of an aromatic containing stream, contacting said stream(s) with a catalyst at conditions effective to oligomerize a least a portion of the olefins and eventually alkylate at least a portion of the aromatics, wherein the catalyst is a crystalline compound with micro/mesoporous structure chosen among crystalline aluminosilicates, crystalline aluminophosphates, crystalline silico-aluminophosphates, crystalline zeolites, or the catalyst is a composite material comprising at least 20% wt of at least one of the above mentioned crystalline compounds, and wherein the mesoporous volume of the crystalline compound is at least 0.22 ml/g.

Abstract: The invention relates to a method for producing distillates by means of oligomerization using a C2C10 hydrocarbon filler and at least one organic oxygenated compound containing at least one oxygen atom and at least two carbon atoms. By including the addition of a substantial amount of oxygenated compounds, said method enables a reduction in the amount of olefins having chain lengths that are too short to allow the use thereof (typically in C10, or even less) and an increase in the yields of molecules in C10+, with controlled exothermicity of the oligomerization reactions.

Abstract: The invention relates to a process for producing distillate from a charge of heteroatomic organic compounds comprising at least one heteroatom chosen from oxygen, sulfur and halogen, alone or in combination, in which the treatment of the charge comprises at least one step of conversion of the heteroatomic organic compounds into olefins performed in a first conversion zone, and, in at least a second oligomerization zone, a step of oligomerization of olefins originating at least partly from the conversion zone, in the presence of at least 0.5% by weight of oxygenated compounds, in order to produce a distillate. By virtue of the presence of oxygenated compounds during the oligomerization, this process makes it possible to improve the yield of distillate, making it possible to obtain a higher degree of oligomerization relative to the oligomerization of the same charge under the same reaction conditions.

Abstract: The invention relates to a method for converting a hydrocarbon feed containing C3-C10 olefins into a distillate, whereby the quantities of olefins having a chain length that is too short can be reduced in order to be exploited (typically C10 or even less) and the C10+ molecule yields can be increased, while controlling the exothermicity of the oligomerisation reactions. This effect is obtained by oligomerising the hydrocarbon feed in the presence of at least one part of the products resulting from the pre-conversion, by means of condensation, of light oxygen molecules (comprising at least one alcohol having at least two carbon atoms) which can originate from biomass.

Abstract: The invention relates to a process for producing distillate by oligomerization starting with a hydrocarbon-based charge in the presence of methanol and/or dimethyl ether, which may especially be of plant origin. By addition of an oxygenated compound, this process makes it possible to reduce the amounts of olefins whose chain length is too short to be exploited (typically C10, or even less) and to increase the yields of C10+ olefins.

Abstract: Process for the purification of an alcohol in the course of a process comprising: (1) providing a reaction zone (C) comprising an acid type catalyst; (2) providing a reaction zone (B) comprising an acid adsorbent material; (3) providing an alcohol stream comprising impurities; (4) introducing the alcohol stream of (3) into the reaction zone (B) and bringing said stream into contact with the acid adsorbent material at conditions effective to reduce the amount of impurities having an adverse effect on the acid type catalyst of the reaction zone (C); (5) recovering from step (4) an alcohol stream and introducing it into the reaction zone (C); (6) optionally introducing one or more reactants (R) into the reaction zone (C); (7) operating said reaction zone (C) at conditions effective to recover a valuable effluent.

Abstract: The present invention relates to a process for making a crystalline metallosilicate composition and comprising crystallites having an inner part (the core) and an outer part (the outer layer or shell) such that: the ratio Si/Metal is higher in the outer part than in the inner part, the crystallites have a continuous distribution of metal and silicon over the crystalline cross-section, said process comprising: a) providing an aqueous medium comprising OH? anions and a metal source, b) providing an aqueous medium comprising an inorganic source of silicon and optionally a templating agent, c) optionally providing a non aqueous liquid medium comprising optionally an organic source of silica, d) mixing the medium a), b) and the optional c) at conditions effective to partly crystallize the desired metallosilicate, e) cooling down the reaction mixture a)+b)+c) to about room temperature, f) decreasing the pH of the reaction mixture by at least 0.1 preferably by 0.3 to 4, more preferably by 0.

Abstract: The present invention relates to a process for making a crystalline metallosilicate composition comprising crystallites having an inner part (the core) and an outer part (the outer layer or shell) such that: the ratio Si/metal is higher in the outer part than in the inner part, the crystallites have a continuous distribution of metal and silicon over the crystalline cross-section, said process comprising: a) providing an aqueous medium comprising OH— anions and a metal source, b) providing an aqueous medium comprising an inorganic source of silicon and optionally a templating agent, c) optionally providing a non aqueous liquid medium comprising optionally an organic source of silica, d) mixing the medium a), b) and the optional c) at conditions effective to crystallyze the desired metallosilicate, e) recovering the desired metallosilicate, wherein in the mixture a)+b)+c), before crystallization, the ratio Si org/Si inorganic is <0.3, advantageously <0.

Abstract: The present invention relates to a process for the conversion of ethanol to make essentially ethylene and propylene, comprising: a) introducing in a reactor (A) (also called the first low temperature reaction zone) a stream comprising ethanol under a partial pressure at least about 0.

Abstract: The present invention relates to a process for the dehydration of at least an alcohol to make at least an olefin, comprising: introducing in a reactor a stream (A) comprising at least an alcohol, optionally water, optionally an inert component, contacting said stream with a catalyst in said reactor at conditions effective to dehydrate at least a portion of the alcohol to make an olefin, recovering from said reactor an olefin containing stream (B), Wherein the catalyst is: a crystalline silicate having a ratio Si/Al of at least about 100, or a dealuminated crystalline silicate, or a phosphorus modified zeolite, the WHSV of the alcohols is at least 2 h?1, the temperature ranges from 280° C. to 500° C. It relates also to the same process as above but wherein the catalyst is a phosphorus modified zeolite and at any WHSV. The partial pressure of the alcohol in the dehydration reactor advantageously ranges from 1.2 to 4 bars absolute (0.12 MPa to 0.

Abstract: The present invention provides a method for preparing a metallosilicate of MFI type, wherein organic templates, seeding techniques, using low aliphatic alcohols miscible with water or homogeneous starting solutions are not required. The present invention relates to a process for making a crystalline metallosilicate with high Si/Metal ratio comprising: a) providing an aqueous medium comprising OH? anions and a metal source, b) providing an aqueous medium comprising an inorganic water insoluble source of silicon, c) optionally providing a non aqueous liquid medium comprising optionally an organic source of silica, d) mixing the medium a), b) and the optional c) at conditions effective to crystallize the desired metallosilicate, e) recovering the desired metallosilicate, wherein in the mixture a)+b)+c), before crystallization, the ratio Si org/Si inorganic is <0.3, advantageously <0.2 and preferably 0, the molar ratio OH?/SiO2 is at least 0.3, advantageously from 0.3 to 0.62, preferably from 0.

Abstract: The present invention relates to a process for the conversion of ethanol to make essentially ethylene and propylene, comprising: a) introducing in a reactor (A) (also called the first low temperature reaction zone) a stream comprising ethanol, optionally water, optionally an inert component, b) contacting said stream with a catalyst (A1) in said reactor (A) at conditions effective to dehydrate at least a portion of the ethanol to essentially ethylene, c) recovering from said reactor an effluent comprising: essentially ethylene, minor amounts of various hydrocarbons, water, optionally unconverted ethanol and the optional inert component of step a), d) fractionating said effluent of step c) to remove water, unconverted ethanol, optionally the inert component, and optionally the whole or a part of the various hydrocarbons to get a stream (D) comprising essentially ethylene and optionally the inert component, e) introducing at least a part of said stream (D) mixed with a stream (D1) comprising olefins having 4 c

Abstract: The present invention (first embodiment) relates to a process for the dehydration of at least an alcohol to make at least an olefin, comprising: a) introducing in a reactor a stream (A) comprising at least an alcohol optionally in aqueous solution and an inert component, b) contacting said stream with a catalyst in said reactor at conditions effective to dehydrate at least a portion of the alcohol to make an olefin, c) recovering from said reactor a stream (B) comprising: the inert component and at least an olefin, water and optionally unconverted alcohol, d) optionally fractionating the stream (B) to recover the unconverted alcohol and recycling said unconverted alcohol to the reactor of step a), e) optionally fractionating the stream (B) to recover the inert component and the olefin and recycling said inert component to the reactor of step a), Wherein, the inert component is selected among ethane, the hydrocarbons having from 3 to 10 carbon atoms, naphtenes and CO2, the proportion of the inert compon

Abstract: The invention covers a process for obtaining an alkaline earth or rare earth metal-P-modified molecular sieve (M-P-modified molecular sieve) comprising the following steps: a). selecting at least one molecular sieve selected from one of: a P-modified molecular sieve which contains at least 0.3 wt % of P obtained by dealuminating a molecular sieve in a steaming step, followed by a leaching step using an acid solution containing a source of P a molecular sieve which is modified with P during step b) by dealuminating the molecular sieve in a steaming step, followed by a leaching step using an acid solution containing a source of P thereby introducing at least 0.3 wt % of P b). contacting said molecular sieve with an alkaline earth or rare earth metal-containing compound (M-containing compound) to introduce at least 0.05 wt % of the alkaline earth or rare earth metal to the molecular sieve. The invention also covers a catalyst composite comprising: a).

Abstract: The present invention is a phosphorous modified zeolite (A) made by a process comprising in that order: selecting a zeolite with low Si/Al ratio (advantageously lower than 30) among H+ or NH4+-form of MFI, MEL, FER, MOR, clinoptilolite, said zeolite having been made preferably without direct addition of organic template; steaming at a temperature ranging from 400 to 870° C. for 0.01-200 h; leaching with an aqueous acid solution containing the source of P at conditions effective to remove a substantial part of Al from the zeolite and to introduce at least 0.3 wt % of P; separation of the solid from the liquid; an optional washing step or an optional drying step or an optional drying step followed by a washing step; a calcination step.

Abstract: The present invention relates to a process to make light olefins, in a combined XTO?OCP process, from an oxygen-containing, halogenide-containing or sulphur-containing organic feedstock comprising: contacting said oxygen-containing, halogenide-containing or sulphur-containing organic feedstock in the XTO reactor with a catalyst made of a P-modified zeolite (A) at conditions effective to convert at least a portion of the feedstock to form a XTO reactor effluent comprising light olefins and a heavy hydrocarbon fraction; separating said light olefins from said heavy hydrocarbon fraction; contacting said heavy hydrocarbon fraction in the OCP reactor with a catalyst made of a P-modified zeolite (A) at conditions effective to convert at least a portion of said heavy hydrocarbon fraction to light olefins; wherein said P-modified zeolite (A) is made by a process comprising in that order: selecting a zeolite (advantageously with Si/Al ratio between 4 and 500) among H+ or NH4+-form of MFI, MEL, FER, MOR, clinoptiloli