Abstract: Tubular structures for use in a subsea environment and a method of manufacturing the same are provided. These composite tubular structures can be used in the oil and gas industry, for example, as production risers.

Abstract: There is a process for the hydroconversion of mixtures of polymers or plastics which comprises the pre-treatment of the mixtures through methods selected from mechanical methods, chemical methods, thermal methods, or combinations thereof forming a pre-treated charge. The pre-treated charge is mixed with a hydrocarbon vacuum residue, optionally pre-heated, to form a reactant mixture. The reactant mixture is fed to a hydroconversion section in slurry phase, together with a catalyst precursor containing Molybdenum, and a stream containing hydrogen, forming a reaction effluent. The effluent is separated into at least one high-pressure and high-temperature separator in a vapour phase and a slurry phase. The separate vapour phase is sent to a gas treatment section with the function of separating a liquid fraction from the gas containing hydrogen and hydrocarbon gases having from 1 to 4 carbon atoms; said liquid fraction comprising naphtha, atmospheric gas oil (AGO), vacuum gas oil (VGO).

Abstract: The present invention relates to a system for a parabolic solar concentrator (SCA) having a substantially continuous reflective surface aiming to maximize the efficiency of the parabolic solar concentrator and of its fabrication method. The system of the present invention allows the fabrication of a low cost parabolic solar concentrator, based on a torsion bar, ribs and a plurality of reflective pieces of sheet metal preferably covered with a reflective film. The parabolic solar concentrator according to a preferred embodiment allows the reduction of surfaces shading the reflective surface. Another advantage is the lack of presence of supporting or movement elements protruding in the concave side of the parabola, not including receiver tube components and supports, thereby increasing the reflection efficiency and solar collection.

Abstract: An unstuck system of stuck drill pipes of a drill string of a drilling apparatus adapted to drilled wells to extract fluids or mud includes a torsion coupling system adapted to disconnect an upper portion from a bottom portion including the stuck drill pipes of the drill string and to transfer a rotation to the unstuck system. The unstuck system includes at least an axial forced vibration generator including at least one axially movable element adapted to generate at least a vibration which is propagated to pipes of a portion free from being stuck, where the induced vibrations fall within a band of induced frequencies near or corresponding to a resonance frequency of the portion free from being stuck.

Abstract: Hole transporting material obtained through a process comprising: reacting at least one heteropoly acid containing at least one transition metal belonging to group 5 or 6 of the Periodic Table of the Elements; with an equivalent amount of at least one salt or one complex of a transition metal belonging to group 5 or 6 of the Periodic Table of the Elements with an organic anion, or with an organic ligand; in the presence of at least one organic solvent selected from alcohols, ketones, esters. Said hole transporting material can be advantageously used in the construction of photovoltaic devices (or solar devices) such as, for example, photovoltaic cells (or solar cells), photovoltaic modules (or solar modules), either on a rigid support, or on a flexible support. Furthermore, said hole transporting material can be advantageously used in the construction of Organic Light Emitting Diodes (OLEDs), or of Organic Field Effect Transistors (OFETs).

Abstract: Disubstituted diaryloxybenzoheterodiazole compound having general formula (I) or (II) and luminescent solar concentrator (LSC) including the same: wherein: Z represents a sulfur atom, an oxygen atom, a selenium atom; or an NR6 group wherein R6 is selected from linear or branched C1-C20 alkyl groups, or from optionally substituted aryl groups; R1, R2 and R3, identical or different, represent a hydrogen atom; or are selected from linear or branched C1-C20 alkyl groups optionally containing heteroatoms, optionally substituted cycloalkyl groups, optionally substituted aryl groups, optionally substituted linear or branched C1-C20 alkoxy groups, optionally substituted phenoxy groups, or a cyano group; or R1 and R2, may optionally be bound together to form, together with the carbon atoms to which they are bound, a saturated, unsaturated or aromatic, cyclic or polycyclic system containing from 3 to 14 carbon atoms, optionally containing one or more heteroatoms; or R2 and R3, may optionally be bound together so

Abstract: There is a process for the selective recovery of transition metals from an organic stream containing transition metals. The organic stream and possibly a first extractor if solid, are melted up to the liquid state. The extractor consists of an ionic liquid or a mixture of two or more ionic liquids and the ionic liquid contains an ammonium salt as cation and as anion an anion with chelating properties. A melted organic stream and a first extractor, optionally melted, are fed to a first liquid-liquid extraction unit working at a temperature of at least 150° C. where the liquid-liquid extraction is carried out obtaining a liquid mixture containing an ionic liquid, or a mixture of two or more ionic liquids, and metals. After extraction, the liquid mixture is cooled at a temperature between 0° C. and 70° C. and becomes biphasic; then the cooled mixture is sent to a first separation unit, to separate a liquid phase that contains ionic liquids and metals, and a metal-depleted solid phase.

Abstract: A process for bio-1,3-butanediol purification from a fermentation broth includes the steps of: (a) subjecting the fermentation broth to separation, (b) subjecting the product obtained in step (a) to treatment with ion-exchange resins, (c) subjecting the product obtained in step (b) to a first evaporation, (d) subjecting the product obtained in step (c) to a second evaporation; and (e) subjecting the product obtained in step (d) to a third evaporation, obtaining purified bio-1,3-butanediol. The purified bio-1,3-butanediol can be used to produce bio-1,3-butadiene. Bio-1,3-butadiene can be used as a monomer or as an intermediate to produce elastomers and (co)polymers.

Abstract: An energy storage device, especially a super capacitor, useful for high temperature applications has current collector elements supporting a carbonaceous matrix modified or doped with pseudo-capacitive materials, including one or more transition metal dichalcogenides, transition metal oxides and mixtures thereof, in contact with a non-aqueous electrolyte composition whereby it is possible to exploit the faradic mechanism in addition to the electric double layer mechanism as an energy storage principle.

Abstract: A disubstituted diaryloxybenzoheterodiazole compound having general formula (I): wherein: R1, R2 and R3, which are the same as or different from each other, represent a hydrogen atom; or represent a halogen atom such as, for example, chlorine, bromine, fluorine, iodine, preferably fluorine; or are selected from optionally halogenated linear or branched C1-C12, preferably C1-C8, alkyl groups, optionally substituted phenoxy groups, provided that at least one of R1, R2 and R3 is an optionally substituted phenoxy group and, if R3 is an optionally substituted phenoxy group, at least one of R1, R2 is different from hydrogen; R4, which are the same as or different from each other, represent a hydrogen atom; or are selected from —COOR groups wherein R is selected from linear or branched C1-C8, preferably C1-C4, alkyl groups.

Abstract: The present invention relates to a group and method for the separation of a mixture comprising two fluid phases mutually at least partially immiscible and with different specific density characterized in that it comprises a closed chamber (11) which extends between an upper outlet mouth (12a) of a fluid phase with lower specific density separated from the mixture, positioned at a first upper height, and a lower outlet mouth (12b) of a fluid phase with greater specific density separated from the mixture, positioned at a second lower height with respect to the first upper height, an inlet (15,33) for said mixture inside said closed chamber (11) also being present at a height interposed between said upper and lower heights, a first upper gross separation device (13) of said mixture and a second lower fine separation device (14,14?) of said mixture, hydraulically connected to each other (13) (14), being situated in succession, inside said closed chamber (11), between said upper outlet mouth (12a) and said lower o

Abstract: There is a process for the production of methanol from gaseous hydrocarbons. The process has the following stages: (a) treating said gaseous hydrocarbons in a desulfurization unit to produce a desulfurized hydrocarbon gas; (b) reacting the desulfurized gas with an oxidizing flow by means of a short contact time partial catalytic oxidation reaction to produce synthesis gas; (c) producing hydrogen by electrolysis of water; (d) mixing and compressing synthesis gas and hydrogen; and (e) sending said compressed mixture to a methanol synthesis unit to produce methanol.

Abstract: There is a conjugated polymer having a derivative of indacen-4-one having general formula (I): wherein: R1 and R2, same or different, are selected from C1-C30 alkyl groups, linear or branched; optionally substituted cycloalkyl groups; optionally substituted aryl groups; optionally substituted heteroaryl groups; C1-C30 alkoxyl groups, linear or branched; R4—O—[CH2—CH2—O]m— polyoxyethylene groups, wherein R4 is selected from C1-C30 alkyl groups, linear or branched, and m is an integer ranging from 1 to 4; —R5—OR6 groups, wherein R5 is selected from C1-C30 alkylene groups, linear or branched, and R6 represents a hydrogen atom or is selected from C1-C30 alkyl groups, linear or branched, or is selected from R4—[—OCH2—CH2—]p— polyoxyethylene groups, wherein R4 has the same meanings as reported above and p is an integer ranging from 1 to 4; —COR7 groups, wherein R7 is selected from C1-C30 alkyl groups, linear or branched; —COOR8 groups, wherein R8 is selected from C1-C30 alkyl groups, linear or branched; or t

Abstract: Process for the production of lipids from biomass including at least one polysaccharide comprising: —subjecting said biomass to hydrolysis to obtain a mixture comprising a first solid phase and a first aqueous phase; —preparing an inoculum comprising at least one oleaginous microorganism in a first fermentation device to obtain a first fermentation broth; —feeding said first aqueous phase and said first fermentation broth to a second fermentation device to obtain a second fermentation broth; —subjecting at least a portion of said second fermentation broth to microfiltration to obtain a first retentate and a first permeate; —feeding said first retentate to said second fermentation device; —subjecting said first permeate to a purification treatment to obtain a second permeate and a second retentate; —feeding said second retentate to said second fermentation device; —at the end of said fermentation, subjecting said second fermentation broth to separation to obtain an aqueous suspension of oleaginous cellular bio

Abstract: Photovoltaic panel (or solar panel) comprising: at least one luminescent solar concentrator (LSC) having an upper surface, a lower surface and one or more outer sides; at least one photovoltaic cell (or solar cell) placed on the outside of at least one of the outer sides or on the outside of at least one part of the lower surface of said luminescent solar concentrator (LSC); at least one rigid or semi-rigid support placed on the outside of said at least one photovoltaic cell (or solar cell), said at least one rigid or semi-rigid support being placed in direct contact with said at least one photovoltaic cell (or solar cell); at least one transparent frame placed outside said at least one rigid or semi-rigid support, said at least one transparent frame being placed in direct contact with said at least one rigid or semi-rigid support; optionally, at least one transparent protective shell placed between said at least one transparent frame and said at least one rigid or semi-rigid support, said at least one tra

Abstract: The present invention relates to a method for the physical separation of solids and asphaltenes with a conversion degree higher than or equal to 90%, present in refinery purge streams. Said method provides for heating a refinery purge stream to a temperature higher than or equal to 185° C. and not exceeding 220° C. and, subsequently, subjecting said heated purge to sedimentation by progressively lowering the temperature in a controlled manner to a minimum temperature of 100° C., without stirring the purge, so as to form a light phase and a heavy phase defined in relation to the density.

Abstract: Luminescent solar concentrator (LSC) having at least one dithienylpyridinethiadiazole compound having general formula (I) or (II): Said luminescent solar concentrator (LSC) can be advantageously used in the construction of photovoltaic devices (or solar devices) selected, for example, from photovoltaic cells (or solar cells), photovoltaic modules (or solar modules), both on rigid support, and on flexible support.

Abstract: Disubstituted diaryloxybenzoheterodiazole compound of general formula (1): in which:—Z represents a sulfur atom, an oxygen atom, a selenium atom; or an NR5 group in which R5 is selected from linear or branched C1-C20, preferably C1-C8, alkyl groups, or from optionally substituted aryl groups;—R1, R2 and R3 are as defined in the claims. The said disubstituted diaryloxybenzoheterodiazole compound of general formula (I) can advantageously be used as a spectrum converter in luminescent solar concentrators (LSCs) which are in turn capable of improving the performance of photovoltaic devices (or solar devices) selected, for example, from photovoltaic cells (or solar cells), photovoltaic modules (or solar modules) on either a rigid substrate or a flexible substrate.

Abstract: The present invention relates to an aqueous emulsion comprising: a) from 50% to 60% of an organic phase dispersed in an aqueous phase, said organic phase containing a mixture including from 24% to 30%, calculated with respect to the final emulsion, of ethylene-vinyl acetate copolymers and/or polyalkyl(meth)acrylates, indicated in the present description as polymeric component, and a high-boiling organic solvent, or a mixture of said solvents; b) a primary emulsifier at a concentration higher or equal to 0.1% and lower than or equal to 3% by weight, calculated with respect to the final emulsion; c) from 37% to 47% of an aqueous phase; wherein the ratio between said polymer component and said organic solvent in the final aqueous emulsion is at least 1/1 and where the organic solvent and any polymer of the polymeric component have a Hildebrand solubility parameter ? such that, the difference (?solvent_?polymer) is lower than 2 in absolute value for any polymer of the polymeric component.