Abstract: Apparatus for improving the safety and recovery of wells to be installed in oil wells comprising a Deep Set Well Head (DSWH), a Casing Receptacle (1), a Deep Set Tubing Hanger (DSTH) (2), Sub-Surface Safety Valves (SSSVs) (12) (13) with one or two independent Control Lines and Connection elements between the DSTH and well head

Abstract: The invention relates to a process for the production of middle distillates from a paraffinic feedstock that is produced by Fischer-Tropsch synthesis, implementing a hydrocracking/hydroisomerization catalyst that comprises at least one hydro-dehydrogenating metal that is selected from the group that is formed by the metals of group VIB and group VIII of the periodic table and a substrate that comprises at least one zeolite that has at least one series of channels of which the opening is defined by a ring with 12 oxygen atoms modified by a) a stage for introducing at least one alkaline cation that belongs to group IA or IIA of the periodic table, b) a stage for treatment of said zeolite in the presence of at least one molecular compound that contains at least one silicon atom, c) at least one stage for partial exchange of said alkaline cations by NH4+ cations such that the remaining content of alkaline cations in the modified zeolite at the end of stage c) is such that the alkaline cation/aluminum molar ratio

Abstract: Process for maintaining the stability of performances of a catalyst for Fischer-Tropsch reaction, performed in a slurry bubble column reactor under a triphase system which comprises gradually increasing the PH2O/PH2 ratio and the PH2O/Z ratio, during the start-up phase, with Z=P0·(T/T1)4·e?(K2/(t·K3)) from 0.4 to 0.8, for a period of time not shorter than 100-150 hrs and not longer than 200-300 hours and, at the end of the start-up phase, maintaining the PH2O/PH2 and PH2O/Z ratios substantially equal to or lower than 0.8.

Abstract: Process for the treatment of the aqueous stream coming from the Fischer-Tropsch reaction comprising: feeding the aqueous stream containing the organic by products of the reaction to a distillation or stripping column; separation from the column of an aqueous stream enriched in alcohols having from 1 to 8 carbon atoms and other possible volatile compounds; feeding the aqueous stream containing the organic acids leaving the bottom of the distillation column to an ion exchange step wherein said aqueous stream is put in contact with an anionic exchange resin bed and the production of two outgoing aqueous streams: an aqueous stream (i) enriched in organic acids having from 1 to 8 carbon atoms; a purified aqueous stream (ii) with a low content of organic acids.

Abstract: Catalytic system which can be used in processes for the hydroconversion of heavy oils by means of hydrotreatment in slurry phase, characterized in that it comprises: a catalyst, having the function of hydrogenating agent, containing MoS2 or WS2 or mixtures thereof in lamellar form or an oil-soluble precursor thereof; a co-catalyst, having nanometric or micronic particle-sizes, selected from cracking and/or denitrogenation catalysts. The co-catalyst preferably consists of zeolites having small-sized crystals and with a low aggregation degree between the primary particles, and/or oxides or sulfides or precursors of sulfides of Ni and/or Co in a mixture with Mo and/or W.

Abstract: A process has been developed for producing diesel boiling range fuel or fuel blending component from renewable feedstocks such as plant oils and greases. The process involves treating a renewable feedstock by hydrogenating and deoxygenating i.e. decarboxylating and/or hydrodeoxygenating to provide a hydrocarbon fraction useful as a diesel fuel. The hydrocarbon fraction is isomerized to improve cold flow properties. At least one interstage stream of the hydrogenating and deoxygenating reaction zone is heat exchanged with the feed to the isomerization reaction zone, and/or the effluent of the hydrogenating and deoxygenating reaction zone is heat exchanged with the feed to the isomerization reaction zone.

Abstract: The present invention relates to a process for the treatment of the aqueous stream coming from the Fischer-Tropsch reaction, comprising: —feeding the aqueous stream (1) containing organic by-products of the reaction to a distillation or stripping column (10); —collection from the column of a distillate (2) enriched in alcohols having from 1 to 8 carbon atoms and other possible volatile compounds—feeding the aqueous stream leaving the bottom of the column (3) to a reverse osmosis unit (20) and the production of two outgoing streams; —an aqueous stream (4) enriched in organic acids with from 1 to 8 carbon atoms; —a partially purified aqueous stream (5) with a low acid content.

Abstract: This invention describes a process for the production of middle distillates from a paraffinic feedstock that is produced by Fischer-Tropsch synthesis, implementing a hydrocracking/hydroisomerization catalyst that comprises at least one hydro-dehydrogenating metal that is selected from the group that is formed by the metals of group VIB and group VIII of the periodic table and a substrate that comprises at least one dealuminified Y zeolite that has an initial overall atomic ratio of silicon to aluminum of between 2.5 and 20, a starting extra-lattice aluminum atom fraction by weight that is greater than 10%, relative to the total mass of aluminum that is present in the zeolite, a starting mesopore volume that is measured by nitrogen porosimetry that is greater than 0.07 ml.g?1, and a starting crystalline parameter ao of the elementary mesh of between 24.38 ? and 24.

Abstract: With a certain pipeline, either underground or deposited on a sea/lake bottom, the formation of critical faults is determined and localized, which arise in the walls of the pipeline, or the growth of an already localized fault is monitored, through a method which detects, by acoustic sensors regularly distributed along the pipeline, the ultrasounds diffused along the walls of the pipeline itself upon the formation of a critical fault, or when a controlled fault increases, and processing, by a remote processor, the digital signals associated with the sound waves to identify the position or evaluate the development of a critical fault.

Abstract: The device described in the present invention can separate fine solid particles in suspension in a viscous liquid, withdrawing a clear liquid from the top of the device, and a dense liquid charged with solid particles is withdrawn from the bottom. The invention also concerns the application of this device to the separation of catalyst particles in a liquid phase Fischer-Tropsch synthesis process.

Abstract: With a certain pipeline, either buried or deposited on a sea/lake bottom, the formation of critical faults is determined and localized, which arise in the walls of the pipeline, or the development of an already localized fault is monitored, through sensors regularly distributed along the pipeline, and fixed to the same by means of a plate equipped with a pass-through hole in which the sensor is inserted.

Abstract: The present invention relates to a method for determining the position of a fluid discharge in an underwater environment comprising the phases which consist in collecting (110) data relating to an underwater area through at least two acoustic sensors (11); filtering and processing (120) the data collected to identify the presence of the discharged fluid and the underwater area involved; forming (130) a single stereoscopic image through joining the plurality of single three-dimensional images; estimating (140) the position of the fluid discharge on the basis of the stereoscopic image thus obtained.

Abstract: The present invention relates to a process for the treatment of the aqueous stream coming from the Fischer-Tropsch reaction which comprises: —feeding of the aqueous stream containing organic by-products of the reaction to a distillation or stripping column; —collection from the column of a distillate enriched in alcohols having from 1 to 8 carbon atoms and other possible volatile compounds; feeding of the aqueous stream containing the acids leaving the bottom of the distillation column to an electrodialysis cell and the production of two outgoing streams: —an aqueous stream (i) enriched in organic acids having from 1 to 8 carbon atoms; —a purified aqueous stream (ii) with a low acid content.

Abstract: The invention concerns a device for producing liquid hydrocarbons by Fischer-Tropsch synthesis on solid catalyst particles in a three-phase bed reactor, said device being equipped with at least one filter cartridge mounted in a filtering zone inside said reactor, said filter cartridge comprising: a filter for separating the filtrate of the solid catalyst particles, a cylindrical casing, and inner element having the shape of a hollow cylinder open at its ends and mounted substantially coaxial relative to the longitudinal axis of the casing, an annular chamber delimited by the casing and the walls of the inner element, said chamber being designed to collect the filtrate, and a discharge conduit for said filtrate, wherein the walls of the inner element of the filter cartridge are at least partly formed by the filter of the cartridge.

Abstract: The present invention relates to a combined piloting method of remote operated underwater vehicles comprising the phases which consist in connecting, to a vertical profile (21), a constraint device (20) comprising at least two arms (25) arranged at a reciprocal fixed angular position, each of the at least two docking arms (25) comprising at a first end (25a) means (29) for the hooking of a remote operated underwater vehicle (14), the at least two docking arms (25) being constrained at one of their second ends (25b) to means (26) for the sliding and rotating hooking to said vertical profile (21); connecting at least two remote operated vehicles (14) to the constraint device (20); detecting the position of the overall structure consisting of the constraint device (20) and remote operated vehicles (14); detecting the orientation of each of the remote operated vehicles (14); receiving data relating to the position and orientation to be reached; determining the power required by each remote operated vehicle (14) a

Abstract: A process has been developed for producing diesel boiling range fuel or fuel blending component from renewable feedstocks such as plant oils and greases. The process involves treating a renewable feedstock by hydrogenating and deoxygenating i.e. decarboxylating and/or hydrodeoxygenating to provide a hydrocarbon fraction useful as a diesel fuel. The hydrocarbon fraction is isomerized to improve cold flow properties. At least one interstage stream of the hydrogenating and deoxygenating reaction zone is heat exchanged with the feed to the isomerization reaction zone, and/or the effluent of the hydrogenating and deoxygenating reaction zone is heat exchanged with the feed to the isomerization reaction zone.

Abstract: The present invention describes a thin layer fixed bed reactor intended for chemical treatments, in particular reduction of a Fischer-Tropsch synthesis catalyst. The reactor is designed in the form of similar, compact modules and operates with a ratio of linear pressure drop to outlet pressure which falls within certain limits.

Abstract: The mercaptans R—SH contained in a hydrocarbon stream are oxidized to the corresponding (di)sulfides by means of a redox system which comprises trivalent iron and a heteropolyacid which allows the complete reoxidation of the reduced iron also with air.

Abstract: A method for the extinction or oil well-killing or killing of an underwater well for the extraction of hydrocarbons under uncontrolled fluid discharge conditions, also called blowout, by assembling, in correspondence with the lower end portion of a string of pipes for the extinction or killing string, a constraint group for rigid connection between a plurality of remote-operated underwater vehicles and the killing string; detecting the position of a flow of fluids and positioning the killing string substantially in correspondence with said flow; lowering a plurality of remote-operated vehicles close to the lower end portion of the killing string; connecting the remote-operated vehicles to the constraint group; detecting in real time the relative position of the flow of fluids with respect to the vehicles and calculating the position of the outlet hole of the flow; on the basis of the calculated position of the outlet hole, coordinately piloting the vehicles so as to bring the lower end of the string in corres

Abstract: The present invention relates to an integrated fluid catalytic cracking process (FCC) which allows hydrocarbon blends to be obtained having a high quality as fuel. In particular, it relates to an integrated process comprising a fluid catalytic cracking step wherein hydrocarbon cuts of an oil origin are converted into blends with a high content of light cycle oil (LCO) having a high quality in terms of density and nature of the aromatic products contained, which, after a separation and a hydrotreating step, is subjected to upgrading by treatment with hydrogen and a catalyst comprising one or more metals selected from Pt, Pd, Ir, Ru, Rh and Re and a silicoaluminate of an acidic nature.