Abstract: The invention relates to a method for reducing the naphthenic acidity of a petroleum feedstock having a neutralization index of 0.5 to 10 mg of KOH/g and a water content lower than 0.2 wt %, wherein said method comprises contacting the petroleum feedstock with a compound selected from the oxides, hydroxides and alkoxides of an HA group alkaline earth metal, the contact being carried out at a temperature lower than or equal to 150° C. The implementation of the method according to the invention, and in particular in the absence of water, makes it possible to reduce the naphthenic acidity and to prevent the formation of naphthenate salts that may subsequently reform naphthenic acids.

Abstract: The disclosure includes the use in a bituminous composition of an organogelator derivative which has a molar mass no higher than 2,000 g/mol and includes at least one hydrogen bonds donor D, at least one hydrogen bonds acceptor A and at least one compatibilizer agent C in the bitumen, the compatibilizer agent C including a group selected among: at least one straight hydrocarbon chain including at least 4 carbon atoms, or at least one aliphatic cycle of 3 to 8 atoms, or at least one aromatic cycle, or at least one aliphatic or partly aromatic, or even entirely aromatic, condensed polycyclic system, each cycle including 5 or 6 atoms taken alone or as a mixture, to improve the resistance to aggressive chemical agents, in particular to hydrocarbons, such as gasolines, diesels and/or kerosenes, excluding N,N?-ethylene bis(stearamide) and excluding fatty-chains polyamines obtained by reacting polyalkylene fatty-chains polyamines of general formula (I) R—NH—(CH2—CH2—CH2—NH)n—H wherein R is a linear hydrocarbon ch

Abstract: The subject of the disclosure concerns C8 or higher, linear or branched fatty chain (meth)acrylic polymers possibly containing at least one ethylene unsaturation, having a weight average molecular weight Mw of less than 20,000 g/mole, free of sulphur-containing, metallic and halogenated compounds and with a residual monomer content measured by GPC of no more than 10% by weight, preferably no more than 7% by weight. A further subject of the disclosure is the synthesis method and the uses of these polymers.

Abstract: The invention concerns a catalyst containing a support comprising at least one binder and at least one zeolite having at least one series of channels the opening of which is defined by a ring containing 12 oxygen atoms, said catalyst comprising phosphorus, at least one C1-C4 dialkyl succinate, acetic acid and a hydrodehydrogenating function comprising at least one element from group VI B and at least one element from group VIII, the Raman spectrum of the catalyst comprising bands at 990 and/or 974 cm-1, characteristic of at least one Keggin heteropolyanion, the characteristic bands of said succinate and the characteristic principal band of acetic acid at 896 cm-1. The invention also concerns the process for preparing the catalyst and its use in hydroconversion.

Abstract: The invention relates to a treatment chain for thermochemically converting a wet biomass feed (1) by gasification, which comprises a device (4) for gasifying the feed (3), and a reactor (9) for steam conversion of the CO, which includes water supply means (10), for delivering a syngas (17) having a defined H2/CO ratio, a drying chamber (2) into which the wet feed (1) is injected prior to its subsequent treatment in the gasification device (4), this drying chamber (2) being supplied with a hot gas (15) withdrawn downstream from the gasification device (4) and recycled by pressurizing means (13) into the drying chamber (2).

Abstract: The invention relates to a process for the catalytic hydrotreating of a feedstock of petroleum origin of diesel fuel type and of a feedstock of biological origin based on vegetable oils and/or animal fats in a stationary bed catalytic hydrotreating unit, the said process being characterized in that the feedstock of petroleum origin is introduced into the said reactor upstream of the feedstock of biological origin. It also relates to a catalytic hydrotreating unit for the implementation of the said process and to a corresponding hydrorefining unit.

Abstract: The instant invention discloses a method for the valorization of spent catalyst from hydrocarbon processing slurry reactors as well as slurry flakes.

Abstract: A process for preparing graft polymers from a polymer is based on conjugated diene units and a graft which is a thiol derivative. The process has an absence of solvent and any radical initiator. The graft polymer can be advantageously be used as additive for a bitumen/polymer composition and in particular permits thermoreversible cross-linking.

Abstract: The invention relates to a device for loading solid particles into a vessel comprising: particle feed means (24); means (26) for dispersing the particles from the top to the bottom of the vessel; at least one means (17) for measuring the height of the filling bed; and at least one automated system for controlling the feed means (24) and/or the dispersion means (26), and also to a process and uses implementing the device.

Abstract: The invention relates to a process for upgrading a pyrolysis oil comprising the following steps: —hydrodeoxygenation treatment (10) of the pyrolysis oil (12) and separation of the effluent (16) obtained into a light aqueous fraction (18) and a heavy organic fraction (20), or separation of the pyrolysis oil into an aqueous fraction and a lignin-rich fraction, —pre-reforming (22) of said aqueous fraction (18) and treatment of the effluent (26) obtained in an SMR unit (28) in order to produce hydrogen (34), —hydrotreatment (40) and/or catalytic cracking and/or visbreaking of said heavy organic fraction (20).

Abstract: The invention relates to a device for loading solid particles into an enclosure, including: a means for supplying solid particles to be dispensed, which can be arranged on the top part of the enclosure to be loaded and which pours the solid particles in a substantially vertical manner into a feeding pipe (1); a mobile device (2) disposed entirely or partially inside the enclosure and under the feeding pipe, including a central shaft (3) rotatably driven by a motor means (4) about a substantially vertical axis and deflector elements (6) having a substantially identical shape and being rotatably secured to the shaft (3), preferably arranged in line with one another at different heights about the shaft (3) and pivotably connected thereto so that they can be raised, for example by centrifugal force; and a feeding pipe (1) at least partially surrounding said central shaft (3) and comprising at least one opening (5) for discharging the solid particles, which opening is provided on the horizontal or side wall thereo

Abstract: The invention relates to a device for loading solid particles into a vessel, comprising: a means for supplying solid particles to be distributed, said means pouring said solid particles into a supply pipe (1), a movable assembly (2) arranged below the supply pipe (1), comprising a central shaft (3) and deflector elements (5) which are integral in rotation with said shaft and arranged around the shaft on multiple vertical tiers (E1-E4) and are articulated about it in such a way that they can lift up, a supply pipe (1) surrounding at least partially said central shaft and comprising at least one orifice (4) for discharging the solid particles which is arranged on a side and/or horizontal wall, this device being characterized in that the movable assembly (2) is designed in such a way as to allow adjustment of the position of the deflector elements (5) on the central shaft (3) in order to vary its permeability to the solid particles.

Abstract: The invention relates to a method and a system for controlling the production of a mixture of constituents, especially a mixture with premix dead volumes. By correcting the matrices for calculating the mixture constituents, used in calculating recipes, by introducing limit, order relationship and equality constraints, it is possible to avoid the drifts observed in certain special cases by the implementation of the method and to improve, on the one hand, the diagnostic assistance and the control of the estimation of the properties so as to limit the deviations from the actual quality of the constituents of the mixture and, on the other hand, the speed of manufacture of the mixture and the robustness of the method. The method and the system according to the invention ensure multivariable regulation feedback by a dynamic observer providing an estimate in real time of the properties of the constituents of the mixture, said estimate being sufficient to guarantee the effectiveness of the feedback loop.

Abstract: The invention relates to a method and a device for controlling the production of a mixture of components, especially a mixture with premix dead volumes. The method and the device according to the invention ensure multivariable regulation feedback by a dynamic observer providing an estimate in real time of the properties of the components of the mixture, said estimate being sufficient to guarantee the effectiveness of the feedback loop. Thus, the desired properties of the mixture are guaranteed despite large uncertainties in the properties of the components on the one hand, and partial knowledge of the mixing process on the other.

Abstract: The present disclosure relates to the use of 2 to 6% by mass of Fischer-Tropsch waxes in a cross-linked bitumen/polymer composition for improving the cross-linked bitumen/polymer composition's resistance to aggressive chemical agents.

Abstract: The invention relates to a method for catalytic cracking to maximize the production of diesel base stocks, comprising a cracking reaction step in an upflow fluidized bed reactor (1), a step of separating the cracked hydrocarbons and coked catalyst, a step of fractionating the cracked hydrocarbons and a step of regenerating said coked catalyst, wherein the hydrocarbon feedstock is injected into the upflow reactor on a catalyst partially deactivated by prior coking of at least part thereof in the same upflow reactor, so that the reaction temperature of the effluents leaving said reactor varies from 470 to 600° C. The invention also relates to a device for implementing the cracking method.

Abstract: The present disclosure relates to a mother solution free from oil of petroleum origin including at least one oil of vegetable and/or animal origin, from 20% to 50% by mass of polymer, with respect to the mass of the mother solution, with or without at least one cross-linking agent, the oil of vegetable and/or animal origin being acid, with an acid value measured according to the standard NF EN ISO 660 including between 50 and 300 mg KOH/g. This mother solution with a very high concentration of polymer is stable and does not gel and can therefore be diluted and used for preparing cross-linked bitumen/polymer compositions, then bituminous mixes.

Abstract: A catalyst which comprises an amorphous support based on alumina, a C1-C4 dialkyl succinate, citric acid and optionally acetic acid, phosphorus and a hydrodehydrogenating function comprising at least one element from group VIII and at least one element from group VIB; the most intense bands comprised in the Raman spectrum of the catalyst are characteristic of Keggin heteropolyanions (974 and/or 990 cm?1), C1-C4 dialkyl succinate and citric acid (in particular 785 and 956 cm?1). Also a process for preparing said catalyst in which a catalytic precursor in the dried, calcined or regenerated state containing the elements of the hydrodehydrogenating function, and optionally phosphorus, is impregnated with an impregnation solution comprising at least one C1-C4 dialkyl succinate, citric acid and optionally at least one compound of phosphorus and optionally acetic acid, and is then dried. Further, the use of said catalyst in any hydrotreatment process.

Abstract: Method and plant for converting hydrocarbon feedstock comprising a shale oil, comprising a step of decontaminating, a step of hydroconverting in an ebullating bed, a step of fractionating into a light fraction, a naphtha fraction, a gas-oil fraction and a fraction heavier than the gas-oil fraction, the naphtha and gas-oil fractions being hydrotreated, the fraction heavier than the gas-oil fraction being conveyed to the decontaminating step. The method aims to maximize the yield of fuel bases.

Abstract: Method for converting hydrocarbon feedstock comprising a shale oil, comprising a step of hydroconverting in an ebullating bed, a step of fractionating by atmospheric distillation into a light fraction, a naphtha fraction, a gas-oil fraction and a fraction heavier than the gas-oil fraction, a step of liquid/liquid extraction of the fraction heavier than the gas-oil fraction, and a dedicated hydrotreating for each of the naphtha and gas-oil fractions. The method aims to maximize the yield of fuel bases.