Abstract: The emergency valve assembly (5) for extraction wells according to the invention comprises A) an external housing (50) and B) a rotating stopper (54). The pass-through duct (52) is arranged for the passage of a production and/or drilling line arranged for containing and carrying, through at least one relative pipe (9), extraction fluids such as, for example, petroleum, oil, water, sludge, rock debris and/or earth, natural gas, or other fluids extracted from an underground reservoir. The valve (5) also comprises a stopper drive (56), arranged for actuating the rotating stopper (54) making it rotate so as to shear the production or perforation line passing through it, in particular shearing the pipe (9) and closing the pass-through duct (52). The pass-through duct (52, 520) has a minimum passage section having a diameter equal to or greater than seven inches. It provides an effective additional safety measure in the case of emergencies.

Abstract: System for generating pressure waves for deep seismic surveys operating in an underwater environment below the surface, suitable for investigating subcrustal objectives for prospecting purposes in the search for hydrocarbons and/or minerals. The system comprises one or more autonomous underwater vehicles organized in swarms, independent and coordinated, each housing one or more autonomous acoustic sea sources with self-propelled striker pistons. This system is served by a system of supporting surface stations, for reprovisioning, recovery actions, checking the well-being of the single vehicles and swarms and maintenance. The system is capable of using both conventional and non-conventional self-charged acoustic sea seismic sources. The system is capable of replicating the effect of a conventional source operated from the surface.

Abstract: An inspection apparatus (100) for monitoring the structural integrity of a pipeline (101) comprising a central electromagnetic device (102) suitable for generating a magnetic field (106); a pair of magnetic conveyors (103?, 103?) connected to the central electromagnetic device (102) suitable for conveying the magnetic field (106) to the wall of the pipeline (101); a system of sensors (104) for revealing the magnetic field (106) conveyed on the pipeline (101); electric means (105) for feeding the inspection apparatus (100) and acquiring and storing data relating to the magnetic field (106) revealed; wherein said central electromagnetic device (102) is divided into various ferromagnetic elements (107) held together by a casing (109) made of polymeric material suitable for degrading after prolonged contact with a mixture of hydrocarbons. Method wherein an inspection apparatus according to the present invention is used for monitoring the structural integrity of a pipeline (101).

Abstract: A process for constructing a well (1) for exploiting an oil or gas reservoir, comprising the following operations: (A) drilling a formation submerged by a water head, at least 3,600 meters deep or more, reaching the formation from the surface of the water with a drilling riser (7), and a drilling tool which passes internally through the drilling riser; and evacuating through the drilling riser (7) at least one of the circulating drilling fluid, the oil or natural gas coming from the formations and the resulting drilling materials. The drilling riser (7) has an external diameter equal to or smaller than 17 inches and reaches a wellhead (3) having an internal diameter equal to or smaller than 18.75 inches, and positioned in correspondence with or close to the seabed submerged which covers the formation.

Abstract: An autonomous underwater system for environmental monitoring including a multidisciplinary underwater station including onboard instrumentation, at least one autonomous modular underwater vehicle movable inside an area to be monitored along an assigned route, and at least one external instrumental modulus which can be connected to the vehicle, wherein the multidisciplinary underwater station includes a docking area, an interface system, an equipping system for supplying the vehicle with instrumental moduli, and a management system.

Abstract: Provided is a system for the hydroconversion of heavy oils essentially consisting of a solid accumulation reactor and a stripping section of the products of hydroconversion outside or inside the reactor itself.

Abstract: The process according to the invention, for transporting extraction fluids, such as, for example, natural gas, oil or water, comprises the following operations: (a) hydraulically connecting the underwater vehicle (1) to the head of an extraction well; (b) transferring and storing the extracted fluid, such as, for example, natural gas, oil or water, on the vehicle (1), subjecting said fluid to one or more of the following processes through plants installed onboard the same vehicle (1): b.1) mechanical, electrical or chemical separation; b.2) separation of the gases or more volatile fractions of the extracted fluid; b.3) separation of predetermined phases or substances from the rest of the extracted fluid; b.4) extraction and elimination of acid gases, such as, for example, carbon dioxide or hydrogen sulphide; b.5) re-injection into geological formations; (c) transporting the extracted fluid(s) subjected to one or more of the processes b.1-b.5) causing the underwater vehicle to advance in immersion.

Abstract: A catalytic system characterized in that it comprises: a first catalyst, having a hydrogenating function, consisting of solid particles of which at least 95% by volume having an equivalent diameter smaller than 20 ?m, containing one or more sulfides of metals of group VI and/or VIII B, possibly prepared starting from an oil-soluble precursor of the same; and a second catalyst, having a cracking function, consisting of solid particles of which at least 90% by volume having an equivalent diameter larger than 5 ?m and smaller than 5 mm, containing an amorphous silico-aluminate and/or a crystalline silico-aluminate and/or an alumina, the equivalent average diameter of the solid particles of the second catalyst being greater than the equivalent average diameter of the solid particles of the first catalyst.

Abstract: Embodiments described herein provide functionalized carbon nanostructures for use in various devices, including photovoltaic devices (e.g., solar cells). In some cases, the carbon nanostructures are fullerenes substituted with one or more isobenzofulvene species and/or indane species. Devices including such materials may exhibit increased efficiency, increased open circuit potential, high electron/hole mobility, and/or low electrical resistance.

Abstract: Process for the impregnation of a polymer substrate including at least one polymer, which comprises putting said polymer substrate in contact with at least one aqueous emulsion, preferably an aqueous microemulsion, including at least one organic additive. The impregnated polymer substrate obtained from said process can be advantageously used for obtaining polymer end-products having improved aesthetic characteristics (for example, impregnation with at least one dye) or stability characteristics (for example, impregnation with at least one stabilizer), which can be used in various fields such as, for example, the optical field (e.g., advanced optical components, laser applications), the medical field (e.g., the release of pharmaceutical substances), the agricultural field (e.g., release of pesticides), fragrances (e.g., release of fragrances).

Abstract: The present invention relates to a catalytic system comprising at least two catalytic zones of which at least one zone exclusively contains one or more noble metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum and at least another zone contains Nickel, said catalytic system characterized in that at least one zone exclusively containing noble metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum is always distinct but in contact with at least one zone containing Nickel. One or more metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum are possibly added to the catalytic zone or zones comprising Nickel.

Abstract: A multiphase ejector including a housing space with a first inlet opening, connectable to a first fluid source, a second inlet opening, connectable to a second fluid source, and an outlet opening. A bush inside the housing space includes a channel having a first opening connected to the first inlet opening and a second opening connected to the second inlet opening and the outlet opening. A member inside the space mixes the fluids and demlimits a channel with a first opening connected to the second opening of the channel and to the second inlet opening, and a second opening connected to the outlet opening. A restriction associated with the bush adjusts the flow-rate of the first fluid in the second opening of the channel. The restriction can be moved between a position of an area having a maximum amplitude, and a position of the second opening being blocked.

Abstract: Organic dye for a Dye Sensitized Solar Cell (DSSC) comprising at least one electron donor group and at least two electron acceptor groups, each of said electron acceptor groups being bound to said electron donor group through a ?-conjugated unit. Said organic dye is particularly useful in a dye sensitized photoelectric transformation element, which, in its turn, can be used in a Dye Sensitized Solar Cell (DSSC).

Abstract: Integrated process for the production of bio-oil from sludge coming from a wastewater purification plant comprising the following steps: (a) sending wastewater to said purification plant obtaining sludge; (b) subjecting the sludge obtained in said step (a) to liquefaction, obtaining a mixture Including an oily phase consisting of bio-oil, a solid phase and an aqueous phase; (c) sending the aqueous phase obtained in said step (b) to said purification plant. The bio-oil (or “bio-crude”) thus obtained can be advantageously used in the production of bio-fuels which can be used as such, or in a mixture with other automotive fuels. Otherwise, said bio-oil (or “bio-crude”) can be used as such (bio-fuel), or in a mixture with fossil fuels (combustible oil, coal, etc.), for the generation of electric energy or heat.

Abstract: The present invention relates to a catalytic system comprising at least two catalytic zones of which at least one zone exclusively contains one or more noble metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum and at least another zone contains Nickel, said catalytic system characterized in that at least one zone exclusively containing noble metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum is always distinct but in contact with at least one zone containing Nickel. One or more metals selected from the group consisting of Rhodium, Ruthenium, Iridium, Palladium and Platinum are possibly added to the catalytic zone or zones comprising Nickel.

Abstract: Process for the preparation of a benzohetero[1,3]diazole compound disubstituted with heteroaryl groups which comprises reacting at least one benzohetero[1,3]diazole compound disubstituted with at least one heteroaryl compound. Said benzohetero[1,3]diazole compound disubstituted with heteroaryl groups can be advantageously used in the construction of luminescent solar concentrators (LSC). Furthermore, said benzohetero[1,3]diazole compound disubstituted with heteroaryl groups can be advantageously used in the construction of photovoltaic devices such as, for example, photovoltaic cells, photovoltaic modules, solar cells, solar modules, on both a rigid and flexible support. Said benzohetero[1,3]diazole compound disubstituted with heteroaryl groups can also be advantageously used as a precursor of monomeric units in the preparation of semiconductor polymers.

Abstract: A process for converting a heavy charge such as a heavy crude oil, a tar from oil sand and a distillation residue, by combining a hydroconversion with catalysts in slurry phase process, a distillation or flash process, and a deasphalting process, wherein the three processes operate on mixed streams consisting of fresh charge and recycled streams.

Abstract: An apparatus for determining the conditions of a pipeline and for the analysis of the fluid contained therein comprising: a central body having a substantially cylindrical form perforated for the whole length and comprising at least a salinity sensor and at least a pH measurement sensor; a first crown of petals connected to the central body, wherein each petal extends from the central body until it touches the internal wall of the pipeline and wherein each petal comprises at least one deformation sensor and at least one roughness sensor; a sliding device integrally connected to the central body in a more advanced position with respect to the first crown of petals, wherein the sliding device can be a second crown of petals identical to the first crown of petals or a foam pig suitably perforated. A method is for determining the conditions of a pipeline and for the analysis of the fluid contained therein, which uses the apparatus.

Abstract: The present invention relates to a method for the recovery of intracellular components of materials of a biological origin, such as yeasts, algae, bacteria and/or mildews, after fermentation/cultivation, which comprises a thermal lysing treatment via nebulization and the use of a nebulization solvent capable of extracting said intracellular components once the nebulization has been completed.

Abstract: The invention relates to a process for producing middle distillates from a paraffinic feedstock produced by Fischer-Tropsch synthesis, implementing a hydrocracking/hydroisomerization catalyst comprising at least one hydro-dehydrogenating metal selected from the group formed by the metals from group VIB and from group VIII of the periodic table and a substrate comprising at least one crystallized IZM-2 solid having a chemical composition, expressed on an anhydrous base, in terms of oxide moles, by the following general formula: XO2:aY2O3:bM2/nO, wherein X represents at least one tetravalent element, Y represents at least one trivalent element and M is at least one alkali metal and/or an alkaline earth metal of valency n, a and b representing respectively the number of moles of Y2O3 and M2/nO and a is between 0 and 0.5 and b is between 0 and 1.