Abstract: The present invention relates to a process for treating, by reactive distillation, an olefinic feedstock comprising linear olefins containing n carbon atoms, and branched olefins, the branched olefins comprising tertiary branched olefins, for example a mixture of n-butenes and of tertiary branched olefins comprising isobutene, so as to produce an olefinic effluent with a mass content of tertiary branched olefin of less than or equal to 3% by weight and a heavy hydrocarbon effluent, said process comprising the feeding of a reactive distillation section with said olefinic feedstock and with an alcohol feedstock comprising a primary alcohol, said reactive distillation section comprising a column composed at least of an upper reflux zone into which is introduced said alcohol feedstock, comprising, for example, ethanol, an intermediate reaction zone comprising at least 6 reactive doublets, and a lower fractionation zone at the level of which said section is fed with said olefinic feedstock, said reactive distillat

Abstract: An injection device is described herein, which is configured to atomize a liquid into droplets using a gas. The injection device has a body with walls defining a recess, a liquid inlet orifice being formed laterally in the walls, and a gas injection assembly in which there is formed a passage for the circulation of gas between a gas inlet orifice at one end of the recess and a gas outlet orifice situated inside the recess. The assembly defines, with the walls of the body, a space for the circulation of liquid from the liquid inlet orifice to the constriction. The walls of the body define a constriction having a throat, downstream of the gas outlet orifice, and the injection device is arranged in such a way that the stream of gas at the outlet orifice covers a wall portion in close proximity to the throat.

Abstract: The invention relates to a support device for a rigid chain (401) composed of links (402) that are connected in pairs by rollers (403). The movement of the rigid chain is guided by an internal housing (406) of a support casing (405). One or more support pins (404) project from one side of the chain, parallel to the axis of the link rollers. Furthermore, a face (411) of the casing extending substantially perpendicularly to the axes of the rollers has a through-groove (412) communicating with the internal housing (406). This groove (412) extends along the entire length of the housing and has dimensions, in a plane perpendicular to the axes of the rollers (403), that are sufficient to allow through only the support pin(s) (404), which pass through the groove (412) and protrude from the support casing (405) by a predetermined length allowing the fastening of one or more functional elements.

Abstract: An H2S sensor includes at least one acoustic wave transducer and a film having a polymer matrix. The polymer matrix includes carboxylate functional groups and lead or zinc cations. The film may have a thickness of between a hundred nanometres and a 2 microns The H2S sensor optionally includes an antenna to remotely interrogate the H2S sensor.

Abstract: A method includes obtaining a first time series of a first well parameter from the first well and a second time series of a second well parameter from the second well, processing the first time series to obtain a processed first time series, filtering the second time series by removing dynamic variations from the second time series to obtain a filtered second time series representative of static variations of the second time series, and determining a correlation between the processed first time series and the filtered second time series at various time shifts between the processed first time series and the filtered second time series, and determining a maximal correlation coefficient and a time shift at maximal correlation between the processed first time series and the filtered second time series, the maximal correlation coefficient being representative of the connectivity between the first well and the second well.

Abstract: A tubular joint having an outer part formed by a fitting end of a piping element, and defining a first axis, an inner part formed by a spigot end of another piping element, the spigot end received in the fitting end. The fitting end and the spigot end define a fluid internal circulation space. A flange attached on the outer part and axially abutting against a shoulder formed by the inner part. A layer of polymeric material, extending radially between the outer and inner part, having a radially outer and inner surface both surrounding the first axis and bonded respectively to the outer and inner parts. The inner part rotatable with respect to the outer part about the first axis, and the inner part defining a second axis forming a pitch angle with the first axis. The inner part, the outer part, and the flange limit the pitch angle to lower than 5°.

Abstract: A process for the preparation of a catalyst from a catalytic precursor comprising a support based on alumina and/or silica-alumina and/or zeolite and comprising at least one element of group VIB and optionally at least one element of group VIII, by impregnation of said precursor with a solution of a C1-C4 dialkyl succinate. An impregnation step for impregnation of said precursor which is dried, calcined or regenerated, with at least one solution containing at least one carboxylic acid other than acetic acid, then maturing and drying at a temperature less than or equal to 200° C., optionally a heat treatment at a temperature lower than 350° C., followed by an impregnation step with a solution containing at least one C1-C4 dialkyl succinate followed by maturing and drying at a temperature less than 200° C. without subsequent calcination step. The catalyst is used in hydrotreatment and/or hydroconversion.

Abstract: A hydrocarbon oil intended to be used as a drug including a content by weight of isoparaffins ranging from 90 to 100%, a content by weight of normal paraffins ranging from 0 to 10% and having a content of carbon of biological origin greater than or equal to 90% relative to the total weight of the hydrocarbon oil.

Abstract: The invention relates to an electrocatalyst for reduction of CO2 to produce multi-carbon compounds, comprising a multi-metal material comprising a primary metal being copper and at least one enhancer metal selected from germanium, gallium, tin, silicon, silver, gold, zinc and aluminium. The invention also relates to a process for electrochemical production of a multi-carbon compound from CO2 using such an electrocatalyst.

Abstract: The subject matter of the present invention is the use, for improving the cold-resistance properties of a fuel or combustible composition, of one or more copolymers comprising:—at least one unit of formula (I): in which R1 is a hydrogen atom or a methyl group; X is —O—CO—, or —CO—O— or —NH—OO— or —CO—NH—; R2 is a C6 to C24 alkyl group; and at least one unit of formula (II): in which R is a substituted or unsubstituted imidazole ring. The invention also relates to compositions of additives containing such a polymer, and also fuel or combustible compositions to which such polymers have been added, preferably in combination with a cold flow improver (CFI) additive or a paraffin anti-settling additive (WASA).

Abstract: The present invention relates to a lubricant composition comprising at least one graphite particle and at least one polytetrafluoroethylene particle. It also relates to the use of said composition for the lubrication of gears, in particular of industrial gears.

Abstract: The present invention relates to a composition of additives, comprising: at least one copolymer having at least one motif of formula (I) and at least one motif of formula (II); at least one cold-flow improver selected from the copolymers of ethylene and unsaturated ester(s); and at least one anti-settling and/or paraffin dispersant additive.

Abstract: The application generally relates to chloroplast targeting of nuclear-encoded proteins of interest in microalgae. Provided herein are expression cassettes comprising a nucleotide sequence encoding a chloroplast targeting peptide operably linked to a nucleotide sequence encoding a protein of interest, wherein said chloroplast targeting peptide comprises the bipartite targeting sequence of the phosphoribulokinase of Nannochloropsis gaditana (NgPRK BTS). The invention further provides vectors comprising the expression cassettes, and microalgae having stably incorporated or transiently expressed into their nuclear genomes an expression cassette described above. Methods are also provided for the production of a protein of interest in the chloroplast of a microalga, as well as methods for modulating chloroplast pathways.

Abstract: Lubricating compositions for motor vehicles are disclosed. The lubricating composition is of grade according to the SAE J300 classification defined by the formula (X)W(Y), wherein X represents 0 or 5; and Y represents an integer ranging from 4 to 20; and comprises at least one diester of formula Ra—C(O)—O—([C(R)2]n—O)s—C(O)—Rb (I). The composition may be used as a lubricant for an engine, in particular a vehicle engine, to reduce the fuel consumption of the engine and to improve engine cleanliness.

Abstract: Systems, computer-readable media, and methods are described for performing a reservoir simulation by obtaining reservoir data, obtaining simulation parameters, determining partial differential equations based on the simulation parameters, and performing a timestep of the reservoir simulation based on the reservoir data and the partial differential equations by removing an effect of long coherent structures with high contrasts, such as fractures, faults, high and low permeability channels, or shale layers, from the partial differential equations to generate adapted partial differential equations, and performing an algebraic multiscale method on the adapted partial differential equations to generate an approximated solution. The approximated solution can be used in a subsequent timestep of the reservoir simulation.

Abstract: A bituminous compositions including at least one molecule of general formula (I) or (II), alone or in a mixture. Also relates to the use of these bituminous compositions in the fields of road applications, particularly in the production of road binders and roadways in general, as well as in the fields of industrial applications. Also relates to a method for preparing said bituminous compositions. Further relates to novel molecules of formula (I) or (II), alone or in a mixture, which can be used in particular in the formulation of bituminous compositions.

Abstract: To model hydrocarbon reservoirs more accurately, models of a geological volume using a three dimensional grid of cells populated with data from seismic studies are augmented by providing fine-grained stochastic models of the distribution of relays in fault zones and modelling the flow of hydrocarbons taking account the modelled relays.

Abstract: A composition is obtained by mixing at least one oligomer A1, which is obtained by copolymerizing at least two monomers functionalized by diol functions with at least one second monomer, with at least one compound A2 having at least two boron ester functions. The compositions exhibit very varied rheological properties depending on the proportion of the compounds A1 and A2 used. A composition is also obtained by mixing at least one lubricating oil with such a composition of associative and exchangeable polymers, and the use of this composition to lubricate a mechanical part.

Abstract: The invention is a fluid having a kinematic viscosity from 3 to 6 mm2/s, a flash point of higher than 120° C. and a pour point lower than ?40° C., having a boiling point in the range of from 200° C. to 400° C. and a boiling range below 80° C., said fluid comprising more than 95% isoparaffins and less than 3% of naphthens by weight, a biocarbon content of at least 95% by weight, containing less than 100 ppm aromatics by weight. The invention is also a drilling fluid and the use of the fluid to improve the viscosity of the drilling fluid.

Abstract: The bituminous compositions comprising molecules of formula (I), (II) and/or (III) used in the fields of road applications, as well as in the fields of industrial applications, a method for producing the bituminous compositions and novel molecules that can be used in the formulation of bituminous compositions.