Abstract: A process of hydrodesulphuration of at least one gasoline cut implementing a catalyst comprising, in its oxide form, at least one metal from group VIB and/or at least one metal from group VIII of the periodic table, present in the form of at least one polyoxometalate of the formula (HhXxMmOy)q?, wherein X is an element selected from phosphorus, silicon, boron, nickel and cobalt, M is one or more element(s) selected from molybdenum, tungsten, nickel and cobalt, h is an integer from 0-12, x is an integer from 0-4, m is an integer 5, 6, 7, 8, 9, 10, 11, 12 and/or 18, y is an integer of 17-72 and q is an integer of 1-20, the polyoxometalates being present within a mesostructured silicon oxide matrix having a pore size of 1.5-50 nm and having amorphous walls of thickness 1-30 nm, the catalyst being sulphured before use in the process.

Abstract: The invention relates to a process of hydrodesulphuration of at least one gasoil cut implementing a catalyst containing, in its oxide form, at least one metal from group VIB and/or at least one metal from group VIII of the periodic table, present in the form of at least one polyoxometalate of the formula (HhXxMmOy)q?, said polyoxometalates being present within a mesostructured silicon oxide matrix having a pore size within the range 1.5 to 50 nm and having amorphous walls of thickness within the range 1 to 30 nm, the said catalyst being sulphured before being implemented in the said process.

Abstract: A process for the hydrocracking a hydrocarbon-containing feedstock in which at least 50% by weight of the compounds have an initial boiling point above 340° C. and a final boiling point below 540° C., using a catalyst having, in its oxide form, at least one metal selected from the metals of groups VIB, VIII and VB, said metals being present in the form of at least one polyoxometallate of formula (HhXxMmOy)q?, said polyoxometallates being present within a mesostructured matrix based on oxide of at least one element Y, said matrix having a pore size between 1.5 and 50 nm and having amorphous walls of thickness between 1 and 30 nm, said catalyst being sulphurized before used in said process.

Abstract: Preparation of a catalyst having at least one metal from group VIII, at least one metal from group VIB and at least one support; in succession: i) one of i1) contacting a pre-catalyst with metal from group VIII, metal from group VIB and support with a cyclic oligosaccharide naming at least 6 ?-(1,4)-bonded glucopyranose subunits; i2) contacting support with a solution containing a precursor of metal from group VIII, a precursor of said metal from group VIB and a cyclic oligosaccharide composed of at least 6 ?-(1,4)-bonded glucopyranose subunits; or i3) contacting support with a cyclic oligosaccharide composed of at least 6 ?-(1,4)-bonded glucopyranose subunits followed by contacting solid derived therefrom with a precursor of metal from group VIII and a precursor of metal from group VIB.

Abstract: A catalyst usable in hydrotreatment processes: an alumina-based amorphous support, phosphorus, a C1-C4 dialkyl succinate, acetic acid and a hydro-dehydrogenizing function of at least one group VIII element and at least one group VIB element, preferably made up of cobalt and molybdenum, a catalyst whose Raman spectrum comprises the most intense bands characteristic of the Keggin heteropolyanions (974 and/or 990 cm?1), C1-C4 dialkyl succinate and acetic acid (896 cm?1). Preferably, the dialkyl succinate concerned is dimethyl succinate and its main band is at 853 cm?1.

Abstract: The invention relates to a process of hydrodesulphuration of at least one gasoil cut implementing a catalyst containing, in its oxide form, at least one metal from group VIB and/or at least one metal from group VIII of the periodic table, present in the form of at least one polyoxometalate of the formula (HhXxMmOy)q?, said polyoxometalates being present within a mesostructured silicon oxide matrix having a pore size within the range 1.5 to 50 nm and having amorphous walls of thickness within the range 1 to 30 nm, the said catalyst being sulphured before being implemented in the said process.

Abstract: The invention relates to a process of hydrodesulphuration of at least one gasoline cut implementing a catalyst comprising, in its oxide form, at least one metal from group VIB and/or at least one metal from group VIII of the periodic table, present in the form of at least one polyoxometalate of the formula (HhXxMmOy)q?, wherein X is an element selected from phosphorus (P), silicon (Si), boron (B), nickel (Ni) and cobalt (Co), the said element being taken alone, M is one or more element(s) selected from molybdenum (Mo), tungsten (W), nickel (Ni) and cobalt (Co), O is oxygen, H is hydrogen, h is an integer within the range 0 to 12, x is an integer within the range 0 to 4, m is an integer equal to 5, 6, 7, 8, 9, 10, 11, 12 and 18, y is an integer within the range 17 to 72 and q is an integer within the range 1 to 20, the said polyoxometalates being present within a mesostructured silicon oxide matrix having a pore size within the range 1.

Abstract: Inorganic material having at least two elementary spherical particles, each of said spherical metallic particles: a polyoxometallate with formula (XxMmOyHh)q?, where H is hydrogen, O is oxygen, X is phosphorus, silicon, boron, nickel or cobalt and M is one or more vanadium, niobium, tantalum, molybdenum, tungsten, iron, copper, zinc, cobalt and nickel, x is 0, 1, 2 or 4, m is 5, 6, 7, 8, 9, 10, 11, 12 or 18, y is 17 to 72, h is 0 to 12 and q is 1 to 20.

Abstract: A process for the hydrocracking a hydrocarbon-containing feedstock in which at least 50% by weight of the compounds have an initial boiling point above 340° C. and a final boiling point below 540° C., using a catalyst having, in its oxide form, at least one metal selected from the metals of groups VIB, VIII and VB, said metals being present in the form of at least one polyoxometallate of formula (HhXxMmOy)q?, said polyoxometallates being present within a mesostructured matrix based on oxide of at least one element Y, said matrix having a pore size between 1.5 and 50 nm and having amorphous walls of thickness between 1 and 30 nm, said catalyst being sulphurized before used in said process.

Abstract: Preparation of a catalyst having at least one metal from group VIII, at least one metal from group VIB and at least one support; in succession: i) one of i1) contacting a pre-catalyst with metal from group VIII, metal from group VIB and support with a cyclic oligosaccharide naming at least 6 ?-(1,4)-bonded glucopyranose subunits; i2) contacting support with a solution containing a precursor of metal from group VIII, a precursor of said metal from group VIB and a cyclic oligosaccharide composed of at least 6 ?-(1,4)-bonded glucopyranose subunits; or i3) contacting support with a cyclic oligosaccharide composed of at least 6 ?-(1,4)-bonded glucopyranose subunits followed by contacting solid derived therefrom with a precursor of metal from group VIII and a precursor of metal from group VIB.

Abstract: A supported and sulphur-containing catalyst is described, comprising; a porous support constituted by an organic-inorganic hybrid material for which the covalent bond between the organic and inorganic phases conforms to the formula M-O—Z—R where M represents at least one metal constituting the inorganic phase, Z at least one heteroelement from among phosphorus and silicon and R an organic fragment, at least one metal of group VIB and/or of group VB and/or of group VIII. The invention also relates to the use of this catalyst for the hydrorefining and the hydroconversion of hydrocarbon-containing feedstocks such as petroleum fractions, fractions from coal or biomass or hydrocarbons produced from natural gas.

Abstract: The invention relates to a catalyst usable in hydrotreatment processes, which comprises an alumina-based amorphous support, phosphorus, a C1-C4 dialkyl succinate, acetic acid and a hydro-dehydrogenizing function comprising at least one group VIII element and at least one group VIB element, preferably made up of cobalt and molybdenum, a catalyst whose Raman spectrum comprises the most intense bands characteristic of the Keggin heteropolyanions (974 and/or 990 cm?1), C1-C4 dialkyl succinate and acetic acid (896 cm?1). Preferably, the dialkyl succinate concerned is dimethyl succinate and its main band is at 853 cm?1. The invention also relates to the method of preparing said catalyst, wherein a catalytic precursor comprising the group VIB and group VIII elements, in particular the molybdenum-cobalt pair, and phosphorus, introduced by impregnation, then dried at a temperature below 180° C.

Abstract: The invention relates to a process for the treatment of heavy petroleum feedstocks in order to produce a gas oil fraction having a sulphur content of less than 50 ppm and generally 10 ppm which comprises the following stages: e) mild hydrocracking in a catalyst fixed bed, f) separation of the hydrogen sulphide, of a distillate cut including a gas oil fraction and of a fraction which is heavier than the gas oil, g) hydrotreating, by contact with at least one catalyst, of at least a portion of the distillate cut obtained in stage b) including the gas oil fraction, as a mixture with a feedstock resulting from a crude or refined renewable source, h) separation of a gas oil cut comprising less than 50 ppm of sulphur. Advantageously, the heavy fraction is sent for catalytic cracking. Preferably, the process is carried out with makeup hydrogen introduced in stage c) and very advantageously all the makeup hydrogen for the process is introduced in stage c).

Abstract: The invention concerns a process for slurry phase hydroconversion of liquid sulphur-containing heavy hydrocarbon feeds, in the presence of hydrogen and in the presence of a solid catalyst, said catalyst being obtained from an aqueous solution formed from at least one cobalt and/or nickel salt of at least one heteropolyanion combining molybdenum and cobalt or molybdenum and nickel in its structure. The aqueous solution is introduced into a hydrocarbon oil containing asphaltenes and/or resins to form an emulsion and said emulsion is then injected upstream or directly into the slurry reactor.

Abstract: A hydrotreating method (HDT) utilizes two plants working under different operating conditions with an intermediate stripping for co-treating a mixture made up of oils of vegetable or animal origin and petroleum cuts (gas oil cuts (GO) and middle distillates) in order to produce gas oil fuel bases meeting specifications. The first plant (HDT1) is more particularly dedicated to the reactions concerning oils of vegetable or animal origin in comixture while pretreating the hydrocarbon feed, whereas the second plant (HDS2) works under more severe conditions to obtain diesel fuel according to standards, in particular in terms of effluent sulfur content, density and cold properties.

Abstract: The invention concerns a process for preparing a hydrotreatment catalyst, comprising the following steps: a) at least one step for impregnation of a calcined and/or dried catalytic precursor containing at least one element from group VIII and/or at least one element from group VIB and an amorphous support, using an impregnation solution constituted by at least one phosphorus-containing compound in solution in at least one polar solvent with a dielectric constant of more than 20; b) a step for maturing said impregnated catalytic precursor from step a); c) a step for drying, without a subsequent calcining step, said catalytic precursor from step b).

Abstract: A hydrotreating method uses two catalyst beds with the introduction, on the last catalyst bed, of oils of animal or vegetable origin for co-treating a mixture made up of oils of vegetable or animal origin and of petroleum cuts (gas oil cuts (GO) and middle distillates) in order to produce gas oil effluents meeting specifications with an improved cetane number. The first catalyst bed is dedicated to only the deep desulfurization reactions (HDS1) of a petroleum type feed. The effluents of the first catalyst bed having an effluent sulfur content below or equal to 50 mg/kg are separated into two streams. The first stream, which is predominant, is sent to the gas oil pool. The second stream is mixed with oils of vegetable or animal origin. The resultant oil-petroleum cut mixture is then subjected to a milder hydrotreatment (HDT2). The effluents obtained at the outlet of the second catalyst bed can optionally be mixed with the predominant stream from the first bed.

Abstract: A supported and sulphur-containing catalyst is described, comprising; a porous support constituted by an organic-inorganic hybrid material for which the covalent bond between the organic and inorganic phases conforms to the formula M-O—Z—R where M represents at least one metal constituting the inorganic phase, Z at least one heteroelement from among phosphorus and silicon and R an organic fragment, at least one metal of group VIB and/or of group VB and/or of group VIII. The invention also relates to the use of this catalyst for the hydrorefining and the hydroconversion of hydrocarbon-containing feedstocks such as petroleum fractions, fractions from coal or biomass or hydrocarbons produced from natural gas.

Abstract: A redox mass for chemical looping combustion processes includes a redox pair or set of pairs having a material able to be alternatively oxidized and reduced between CuO and Cu, between Cu2O and Cu, between NiO and Ni, between MnO2 and Mn2O3, between Mn2O3 and Mn3O4, between Mn3O4 and MnO, between MnO and Mn, between CO3O4 and CoO or between CoO and Co, and a binder containing at least one mixed cerine-zirconia oxide (Ce/Zr) of the general formula CexZr1-xO2, where 0.05?x?0.95.

Abstract: A process is described for preparing a solution formed by at least one cobalt and/or nickel salt of at least one heteropolyanion combining molybdenum and cobalt or molybdenum and nickel in its structure, said process comprising: a) mixing at least one source of molybdenum and at least one oxidizing compound in aqueous solution to synthesize peroxomolybdate ions at an acidic pH, the (oxidizing compound/molybdenum source) mole ratio being in the range 0.1 to 20; b) introducing at least one cobalt precursor and/or at least one nickel precursor into the solution from step a) to form a solution comprising at least said salt in which the (Co+Ni)/Mo mole ratio is in the range 0.25 to 0.85.