Abstract: A stripping apparatus is described for the gas-solid separation process in a fluidized bed in a counter-current flow of a stripping fluid. The apparatus includes sets of perforated baffle-plates with holes, fixed in series, alternating central and lateral plates inside a stripping chamber. The holes in the baffle-plates, in number, size and in circular or elliptical lay-out, are oriented in offset position in relation to the holes in the parallel and subsequent baffle-plates, reducing the damage of erosion on the perforated baffle-plates and optimizing stripping of the fluidized solid particles.

Abstract: A fiber and a process for obtaining same from a high-modulus polyethylene, extrudable in state-of-the-art equipment and in the absence of previous solubilization in any kind of organic solvent is described, the process comprising providing such a polyethylene, introducing it in a state-of-the-art extruder, extruding it according to a temperature pattern, obtaining an extrudate that is directed to a cooling bath to have its temperature reduced, then directing the extrudate to a first stretcher where it is stretched or drawn into a fiber of improved tenacity, at a first velocity v1, then heating the fiber at nearly 90° C. and then directing said fiber to a second stretcher to be drawn at a final velocity v2, wherein v1<v2, at a draw ratio of 2/1 until 65/1. The tenacity of the polyethylene fiber obtained by the said process attains at least 4 gf/den, which makes it useful to naval and offshore applications.

Abstract: A free standing riser system includes a riser, a subsea intervention unit, and an umbilical line. The riser includes interconnected joints linked to one another, a lower-end of the riser being coupled to a wellhead and an upper-end of the riser enclosed in a buoy assembly, including a terminal, the riser being maintained in an erect, substantially vertical position. The subsea intervention unit is provided above the riser, and includes three connections: one connection to the terminal of the riser, one connection to a flexible jumper that is connected to a FPU, and one connection that provides a vertical conveyance to an intervention rig.

Abstract: A system for the direct vertical connection between contiguous sub sea equipment is described, having one or more hydrocarbon flow and/or control interconnection between same, so as to dispense with the use of connecting jumpers. One mode of said system comprises a PuAB 221 vertically and directly connected to a PrAB 104. Equipment is directly fixed through the PuAB connector 251 with a PrAB 104-production mandrel 107, said mandrel being fitted with a funnel guide 112. PuAB 221 is fitted with a funnel 224 so as to guide the drilling of a cased borehole 220 in the marine soil 101, close to well 111. Once the cased borehole 220 is ready, PuAB 221 will be locked to the casing of said borehole 220 by means of a locking system, so as to complete the mechanical and hydraulic connection between the two devices, PuAB and PrAB or HWCT. Two modes of the method for installation of said system are also described.

Abstract: A process is described for catalytic cracking of hydrocarbon feedstocks from petroleum refining which increases substantially the yields of light olefins. The process limits the extreme conditions to a first reaction section and introduces a stream of cooling fluid above the feedstock injection point so as to maintain a second reaction section under cracking conditions which produce light olefins propene and ethene, and inhibits reactions undesirable for the process.

Abstract: The present invention comprises a method of Enhanced Petroleum Recovery (EPR) combining technical, economic, environmental and social effectiveness to increase the recovery factor of onshore or offshore fields having a high degree of exploitation, more precisely through the use of a substance miscible with the diverse types of petroleum of low fluidity found in various regions. More specifically, the present invention refers to the use of solvents such as light liquid fractions of petroleum, for example diesel oil and gas oil, a light petroleum, and the essential oils derived from renewable sources such as for example biodiesel, used pure or mutually admixed in any proportion, for injection into a geological formation through an injection well, there resulting a final mixture (petroleum/injected solvent) presenting much lower viscosity and much greater fluidity than the original petroleum, having an impact throughout the petroleum production chain.

Abstract: The invention relates to a system for collecting and injecting water from a subterranean aquifer directly into hydrocarbon reservoirs. The system may include a collecting wells in aquifers, injection wells in hydrocarbon producing reservoirs and a hydraulic connection for pumping water with access to a collecting zone and to an injection zone. The invention is applicable to hydrocarbons production fields, where water injection is used to maintain the pressure in a hydrocarbon producing reservoir, thereby enhancing the recovery rate of the same.

Abstract: A method is described for co-processing of ethanol and hydrocarbons from petroleum refining, which are introduced separately in two reaction zones of a reactor of a fluidized catalytic cracking unit. The process combines conversion of ethanol into ethene and conversion of hydrocarbons into other lighter hydrocarbon fractions, to produce ethene in quantities of 15 to 90 wt % in the fuel gas fraction obtained during the process.

Abstract: To provide a process of hydrocracking heavy oil capable of obtaining cracked light oil with higher yields and/or milder reaction conditions than the conventionally proposed hydrocracking process in a suspended bed method using an iron-based catalyst when hydrocracking heavy oil containing heavy metal components produced in a refining process of crude oil into lighter oil. There are provided (1) a process of hydrocracking heavy oil containing heavy metal components produced in a refining process of crude oil, comprising a vacuum distillation step to obtain the heavy oil as distillation residue by vacuum distillation; and a reaction step to hydrocrack the heavy oil in the presence of an iron-based catalyst in a suspended bed reactor, wherein the distillation is conducted at 350° C. or less in the vacuum distillation step, (2) in the preceding process, reaction conditions in the reaction step are a reaction pressure of 60-160 kg/cm2; a reaction temperature of 430-455° C.; and a reaction time of 30-180 minutes.

Abstract: The present invention relates to a device intended to be passed through a pipeline of variable diameter, propelled by a liquid flowing inside said pipeline. The device has an elongated cylindrical body (2) made of polymer foam, with a number of deep channels (5) equally spaced from each other, coiled around the length of the cylindrical body (2) of the pig (1), beginning close to one end of the body (2) and ending close to the other end. These ends have a basically bulled-nosed shape, conferring a symmetrical aspect. Structural cleaning elements (6), not interconnected, are inserted inside the cylindrical body (2) of the pig. They are made of elastomeric material and have a central core (7) with spiral scraping extensions (8) of the same number as the deep channels (5) in the body (2) of the pig (1).

Abstract: Process for hydroconversion of loads of mixtures of waxes from renewable resources that may be made up of waxes of mineral origin or waxes of animal origin, that may be used in their pure form or mixed in any proportion, that may optionally be combined with loads of hydrocarbons of mineral origin, as is the case of waxes obtained from petroleum, by industrial treatment. This mixture flow is submitted to a hydrotreatment and hydroisomerization/hydrofinishing process and the referenced process takes place under the usual hydroconversion conditions, in the presence of a hydrogen stream and hydroconversion catalysts, resulting in obtaining products referred to as biolubricants and bioparaffins, that present characteristics of being biodegradable and less of an environmental pollutant.

Abstract: This invention refers to a magnetized intermetallic compound which may be applied as a basic lubricating oil in order to create a high performance finished lubricating oil. Magnetizing the intermetallic compound will confer the ability to the finished lubricating oil to form a magnetic film on the external surface of a solid body, and in so doing will confer to the additive a greater capacity to reduce friction, thus minimizing the effect of wear caused by contact between the surfaces of two bodies of several dynamic systems.

Abstract: A process for the hydrodesulfurization of cracked olefin streams is described, the process aiming at reducing the sulfur content while at the same time minimizing the hydrogenation degree of said olefins. In order to dilute the added reaction hydrogen, the process makes use of non-reactive compounds such as N2, CH4, C2H6, C3H8, C4H10, Group VIII noble gases as well as admixtures of same in any amount, in gas or vapor phase.

Abstract: A system for the measurement and surface data acquisition for optical fiber sensors containing Bragg gratings for the sensing of physical parameters originated from a set of oil wells, the system including: an optical system for signal processing, the signals being originated from physical parameters sensors installed in one single or in a set of oil and/or gas wells and resulting from the reflected wavelength in response to a perturbation of the physical parameter under measurement; an electronic system for signal processing for converting the optical intensity signals originated from the optical system into electrical signals with the aid of detectors that optimize the signal/noise ratio; and an optical switcher having an interface between a) and b), for expanding the number of monitored oil wells.

Abstract: A system to monitor and record wave and tides, based on using equipment to monitor and record tides and the characteristics of ocean wave size and period, by indirectly measuring changes in the level of water around a pipe, the upper end of which is hermetically sealed and the lower end of which is submerged in the ocean, and its correlation to the measurement of the corresponding change in pressure inside the pipe. The system may be used to continually record changes in the ocean surface, to obtain the level of tides and the characteristics of its waves.

Abstract: The reaction of N-alkylimidazol with alkyl sulfonates, at room temperature, favors the production of 1,3-dialkylimidazolium alkane-sulfonates as crystalline solids at high yields. The alkane-sulfonate anions may be easily substituted by a series of other anions [BF4, PF6, PF3(CF2CF3)3, CF3SO3 and (CF3SO2)2N] through simple anion, salt, or acid reactions in water at room temperature. The extraction with dichloromethane, filtration, and evaporation of the solvent, allows the production of the desired ionic liquids at a yield of 80-95%. The purity of these ionic liquids (in some cases >99.4%) is performed using the intensity of 13C satellite signals from the magnetic resonance spectrums of the N-methyl imidazolium group as an internal standard.

Abstract: An improved cyclone system for disengaging solid and gaseous particles in fluid catalytic cracking (FCC) processes with reduced coke formation in disengager vessels, without favoring release of the disengaged catalyst into cyclones in subsequent stages, said system comprising legless cyclones 42 fitted with external collector pipes 43, is described. The collector pipes 43 optimize the purge of gases coming from the disengager vessel 49, reducing the time the hydrocarbons remain inside said disengager vessel 49, thus preventing overcracking and subsequent coke formation. Positioning of the external collector pipes 43 prevents release of the disengaged catalyst into cyclones in subsequent stages.

Abstract: A process for the preparation and modification of additives, with a zeolite base and a high silica alumina ratio (SAR) like the ZSM-5, to increase the yield of propene and LPG in low severity FCC operations, that seeks to maximize the production of medium-distillates with low aromaticity and to minimize molecular cracking in the LCO range. The additives involved guarantee an increase in light olefin yields without altering the yield or the quality of the LCO produced. The innovative process includes surprising actions from rare earths (RE) on the active sites of zeolite, that at once partially block their pores and, in this way, make molecular cracking in the medium-distillate range difficult, which preferably occur at low reaction temperatures and keeps the remaining sites quite active.

Abstract: The present invention contemplates a system comprising a pumping module coupled to an intermediate flow inlet (IFI) wherein said IFI is coupled to a base structure disposed on the flow line that routes production from one or more oil wells, allowing for the quick and easy installation or recovery of a subsea pumping module by cable from an inexpensive vessel. The present invention also allows for the hydraulic isolation of the subsea pumping module by means of on-off valves on the IFI whereby the pumping module can be easily installed or removed without causing underwater oil spills. Sealing of the connection is of the metal-metal type. It is also possible to pass a pig through the present system for clearing the flow lines.

Abstract: A process to prepare multi-metal materials based on transition metals, using co-precipitation of mixed compound from solutions containing the metals, more specifically a process to prepare multi-metal materials based on transition metals, using co-precipitation, preferably seeking a condition of formation of a gel, from the mixture of precursor solutions containing the metals. The parameters of the process are set in such a way that the material is able to be molded by extrusion, obtaining extruded material with superior physico chemical properties, which may be used as an adsorbent, a catalyst or catalyst support, or even as filler in the reactor or column.