Abstract: An apparatus and related process for the internal cleaning of a pipeline includes an interchangeable rotary cleaning head, a motor device coupled to the rotary head, a movement device configured to move the apparatus inside the pipeline, and a remote control system. The combined movement of the rotary head rotation and of the advancing motion of the apparatus inside the pipeline allows the disintegration of the deposits present internally of the pipeline by mechanical action.

Abstract: Hydrogenated polymers with a radial structure having a core made up of calixarenes of the general formula (I), to the core of which is linked a number P of hydrogenated linear polymer segments selected from: —hydrogenated homopolymers or co-polymers of conjugated dienes; or—hydrogenated co-polymers of said conjugated dienes and monoalkenyl arenes, and—mixtures thereof said formula (I) in which: —R1, R2, R3 and R4 are independently selected from hydrogen; a group containing carbon and hydrogen; a group also containing heteroatoms in addition to carbon and hydrogen; a group also containing silicon in addition to carbon, hydrogen and heteroatoms; —one of the two substituents R5 and R6 is hydrogen, while the other may be hydrogen or alkyl, with a number of carbon atoms between 1 and 6, preferably methyl and ethyl; —n is an integer in the range between 4 and 16.

Abstract: Thermoplastic copolymer with a high sulphur content comprising sulphur in a quantity higher than or equal to 40% by weight, preferably ranging from 45% by weight to 90% by weight, with respect to the total weight of said thermoplastic copolymer, and at least one monomer having general formula (I) wherein: R1 and R2, equal to or different from each other, represent a hydrogen atom; or they are selected from C1-C20, preferably C1-C15, linear or branched alkyl groups, C2-C20, preferably C2-Ci5, linear or branched alkenyl groups, C2-C20, preferably C2-C15, linear or branched alkylidene groups; or R1 and R2, may optionally be bound to one another so as to form, together with the other atoms to which they are bound, a cycloalkene containing from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted with C1-C20, preferably C1-C15, linear or branched alkyl groups, said cycle optionally containing heteroatoms such as, for example, oxygen, sulphur, nitrogen, silicon, phosphorus, selenium; sai

Abstract: The present invention relates to a method for inhibiting water permeation in an extraction well of a hydrocarbon oil from an underground reservoir which comprises injecting into said reservoir at least one polymerizable composition comprising: at least one hydrophilic monomer, -at least one hydrophilic initiator of radical polymerization with thermal activation (hydrophilic initiator), at least one lipophilic initiator of radical polymerization with thermal activation (lipophilic initiator). The present invention also relates to the polymerizable compositions that can be used in said method.

Abstract: A process for the production of lipids from biomass derived from guayule plants comprising: obtaining a hydrolysate comprising 5 carbon atom (C5) sugars from biomass derived from guayule plants, said 5 carbon atom (C5) sugars being present in said hydrolysate in a quantity greater than or equal to 80% by weight, preferably ranging from 85% by weight to 99% by weight, with respect to the total weight of said hydrolysate; feeding said hydrolysate to a fermentation device in the presence of at least one oleaginous yeast to obtain a fermentation broth; at the end of fermentation, subjecting said fermentation broth to separation obtaining an aqueous suspension of oleaginous cellular biomass comprising lipids and an aqueous phase. The lipids thus obtained can be advantageously used in the production of biofuel such as, for example, biodiesel or green diesel that can be used as such, or in mixtures with other fuels, for automotive transport.

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: The present invention relates to an apparatus for the hydroconversion of heavy oil products (the fresh load). Said apparatus comprises: a slurry bubble column hydroconversion reactor, which comprises a feed line in which the fresh load and the recirculated slurry phase are conveyed, an inlet line for a hydrogenating stream and an outlet for a reaction effluent through an outlet nozzle; a stripping column at high pressure and high temperature placed downstream of the reactor and directly connected to the reactor head through a pipeline in which the reaction effluent flows; said column having an inlet line for a stripping gas, an inlet for the reactor effluent, a head outlet for steam and an outlet for the slurry phase; lines and means for recirculating the slurry leaving the stripping column; lines and means for taking a drain stream, which has the function of preventing the accumulation of solids in the reactor.

Abstract: A method for concentrating, in order to favour the subsequent extraction process of intracellular lipids, a cell suspension containing a biomass of oleaginous yeasts fermented in fermentation broth under conditions that allow the intracellular accumulation of lipids, where the biomass contains significant quantities of mucilaginous material. The method includes: a) cultivating the oleaginous yeasts in a fermentation broth to obtain a cell suspension containing the mucilaginous biomass; b) subjecting the cell suspension obtained from a) to heat treatment, at a temperature between 95° C. and 120° C. and to acid treatment, to obtain a treated cell suspension containing the mucilaginous biomass containing intact oleaginous yeast cells; and c) concentrating the treated cell suspension obtained from b), by removing at least part of the fermentation broth to obtain a concentrated cell suspension.

Abstract: A method for inhibiting the permeation of water in an extraction well of a hydrocarbon fluid from an underground reservoir is described. The method includes the injection of at least one treatment fluid into the underground reservoir. The treatment fluid contains at least one emulsion or dispersion in an organic solvent of at least one copolymer of a first monomer of an acrylic monomer or a methacrylic monomer, and a second monomer having at least one ethylene unsaturation and at least one polyoxyethylene chain. The emulsion or dispersion of the copolymer used in the method is also described.

Abstract: Process for the production of bio-oil from biomass comprising the following steps: (a) feeding a biomass to a liquefaction reactor, said biomass having a protein content higher than or equal to 1% by weight, preferably ranging from 5% by weight to 50% by weight, with respect to the weight (dry weight) of said biomass, a lipid content higher than or equal to 1% by weight, preferably ranging from 5% by weight to 60% by weight, with respect to the weight (dry weight) of said biomass, a pH higher than or equal to 4, preferably ranging from 4.5 to 10; (b) subjecting said biomass to liquefaction operating at a temperature ranging from 220° C. to 350° C., preferably ranging from 230° C. to 310° C., even more preferably ranging from 240° C. to 300° C.

Abstract: The present invention concerns an oleaginous yeast variant of the species Rhodosporidium azoricum characterized by higher biomass yields and intra-cellular lipid accumulation useful for the production of bio-fuels higher, in determined conditions, with respect to the wild type strain of the same species. Furthermore, the invention concerns a method through which said oleaginous yeast variant of the species Rhodosporidium azoricum was obtained. The invention further concerns the lipid production by means of said variant strain of oleaginous yeast of the species Rhodosporidium azoricum.

Abstract: Indacen-4-one derivative having general formula (I) in which: —W and W1, which are the same or different, preferably the same, represent an oxygen atom; a sulfur atom; an N—R3 group in which R3 represents a hydrogen atom, or is selected from linear or branched C1-C20, preferably C2-C10, alkyl groups; —Z and Y, which are the same or different, preferably the same, represent a nitrogen atom; or a C—R4 group in which R4 represents a hydrogen atom, or is selected from linear or branched C1-C20, preferably C2-C10, alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups, optionally substituted heteroaryl groups, linear or branched C1-C20, preferably C2-C10, alkoxyl groups, R5—O—[CH2—CH2—O]n— polyethyleneoxyl groups in which R5 is selected from linear or branched C1-C20, preferably C2-C10, alkyl groups, and n is an integer ranging from 1 to 4; —R6—OR7 groups in which R6 is selected from linear or branched C1-C20, preferably C2-C10, alkylene groups and R7 represents a hydrogen atom

Abstract: The present invention relates to a device and a method for the implementation of a flexible tubular structure made of reformable composite material, designed for passing from a first folded configuration to a second longitudinally developed operating configuration using a tapered profile slidingly engageable inside the tubular structure.

Abstract: The present invention relates to a process for the treatment of refinery purge streams, containing a hydrocarbon component in slurry phase having a boiling point higher than or equal to 140° C., characterized by the presence of quantities of asphaltenes higher than or equal to 5% by weight and characterized by the presence of a solid content higher than or equal to 5% by weight. The process provides that said purge be mixed with a suitable fluxing agent according to appropriate ratios and under certain conditions, forming a suspension with a content higher than or equal to 10% by weight of compounds having a boiling point TbP lower than or equal to 350° C. After mixing, the suspension is sent to a liquid/solid separation step which operates under suitable conditions, separating a solid phase containing a residual organic component and a solid component, called cake, and a liquid phase containing residual solids. The solid phase obtained is cooled to below 60° C.

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: The present invention relates to a metal compound of calixarene not containing sulfur and dispersible in oil, which can be partially salified, or neutral, or basic or overbased, said calixarene having general formula (I) in which: a) R1, R2, R3 and R4 are independently selected from hydrogen, or a group containing carbon and hydrogen, or a group containing in addition to carbon and hydrogen also heteroatoms, provided that said heteroatoms are not sulfur; b) one of the two substituents R5 and R6 is hydrogen, while the other may be selected from hydrogen, or a linear or branched alkyl with a number of carbon atoms between 1 and 6, preferably methyl, ethyl, 1-propyl, 2-propyl, n-butyl, sec-butyl, more preferably methyl or ethyl; c) n is the number of units of the calixarene ring and is comprised in the range between 4 and 16, preferably between 5 and 12; said calixarene being characterized in that in at least one of the n units of the calixarene ring, at least one of the substituents R1, R2, R3 and R4 contains a

Abstract: System for cableless bidirectional data transmission in a well for the extraction of formation fluids comprising: a plurality of rods connected to each other in succession so as to form a rod string, which extends from the surface to the bottom of the well, the rod string being associable with a plurality of sensors configured for continuously detecting a plurality of parameters relating to the fluids circulating in the well and to the rock formation surrounding the well and/or to safety devices or other remote-controlled well instrumentation; a plurality of communication modules applied at predefined distances along the rod string and configured for the transmission of signals from and towards the bottom of the well; each of the communication modules including at least one metal plate.

Abstract: Non-aqueous redox flow battery (RFB) comprising: a positive compartment in which a positive electrode is positioned and in which a positive non-aqueous liquid electrolyte is caused to flow; a negative compartment in which a negative electrode is positioned and in which a negative non-aqueous liquid electrolyte is caused to flow; an ion-exchange membrane positioned between the positive compartment and the negative compartment in which: said positive non-aqueous liquid electrolyte comprises a solution of copper triflate or tetrafluoroborate complexes [Cu(I) or Cu(II)] in at least one organic solvent; said negative non-aqueous liquid electrolyte comprises a solution of at least one benzothiadiazole or a derivative thereof in at least one organic solvent.

Abstract: A safety valve assembly for extradition of hydrocarbons includes a valve body including a passage duct, configured to be traversed by a production and/or drilling line. The valve body includes housings for a punch and counter-punch, arranged diametrically opposite to one another with a common longitudinal axis substantially perpendicular to the longitudinal axis of the valve. The punch slides linearly in a controlled manner in the housing along the axis which intersects the longitudinal axis of the pipe, and the counter-punch slides linearly in a controlled manner in the housing along the axis which intersects the longitudinal axis of the pipe. The punch and counter-punch are configured to allow the counter-punch to slidingly receive the punch in its interior to create two different shearing planes. The counter-punch includes a hollow part to slidingly receive the section of tubular material and the punch, in the linear movement during the shearing operation.

Abstract: A description is given of a system and a method of monitoring of a pipe for the transportation of a fluid at a predefined pressure value. The system comprises at least one pressure pulses generator device hydraulically connected to the fluid transported by the pipe. Each pressure pulses generator device comprises at least one first tank, designed to contain fluid coming from the pipe and to maintain it at a first pressure value which is smaller than the predefined pressure of the fluid transported by the pipe, and at least one second tank, designed to contain fluid coming from the pipe and to maintain it at a second pressure value which is greater than the predefined pressure value of the fluid transported by the pipe. The first tank and the second tank generate respectively a negative pressure pulse, caused by the passage of fluid from the pipe to the first tank, and a positive pressure pulse, caused by the passage of fluid from the second tank to the pipe.