Abstract: The present invention relates to a process for obtaining a catalyst of high activity based on a mixture of supports, more specifically, the mixture of supports being Al2O3 plus MgCl2, intended for the production of polyolefins. The catalyst of the present invention involves the use of a spherical support based on special alumina that serves as a porous matrix, which is impregnated, by precipitation, with magnesium chloride by dissolving the latter in ethers and/or alcohols.

Abstract: The present invention relates to a catalyst for steam pre-reforming of hydrocarbons, containing in its formulation nickel and rare earths supported on alumina or magnesium or calcium aluminates, so as to increase the resistance to coke deposition, and the process for preparing said catalyst. Additionally the present invention relates to a process for manufacturing hydrogen or syn gas through steam pre-reforming olefin-containing hydrocarbons in the presence of the catalyst obtained according to the present invention.

Abstract: The invention relates to the preparation of carboxylic acid esters compounds, biodiesel (B) from microalgae, for use as a biofuel for compression type ignition. The objective is achieved through a hydroesterification process of a microalgae biomass (MU) comprising a hydrolysis stage and the esterification stage by means of heterogeneous catalysis. The wet microalgae biomass (MU) is the result of a process of cultivation concentration and is hydrolyzed directly in a hydrolysis column (20). Fatty acids (C), water (A) and raw glycerin (G) are obtained following the hydrolysis. The fatty acids (C) are esterified by reactive distillation in the presence of an impregnated heterogeneous catalyst (I).

Abstract: The present invention refers to a method to repair flexible flow lines used in the petroleum industry. This method provides a means for quick and permanent repairs of birdcage-type failures (BC) in flexible ducts while they are in operation, without interrupting production flows. The technology proposed, because of its simple characteristics, eliminates the need for replacing the affected section and for allocating special vessels to perform the repair.

Abstract: A combustion device for meeting the energy demand of processes for producing light olefins (ethylene and propene) in fluidized-bed catalytic cracking units. The combustion device is used to burn heating oil and to keep burning the coke deposited on the catalyst, with a view to heating it to meet the energy demand of the reaction, combustion taking place smoothly and uniformly, preventing the formation of hotspots within the catalytic bed and in the dilute phase following combustion (afterburning), thereby minimizing deactivation of the catalyst and the risk of damage to the equipment inside of the combustion device.

Abstract: Additives are described for use in high solids content epoxy-based corrosion resistant coatings in liquid form, where such additives are composed by microcapsules containing a regenerating agent dispersed in an organic solvent. The coatings, when additivated with such dispersion, will have the ability to self-regenerate in the event of damages (cracks or scratches) to the applied and cured coating on the metal surface, preventing the propagation of corrosion on the exposed metal surface.

Abstract: The present invention relates to an apparatus for inspecting and monitoring flexible collection and production lines in real time, rendering possible constant tracking of the condition of the internal structures of a flexible riser, specifically of the tensile armor thereof. The device may be provided at any point along the riser ensuring the establishment of an area of physical and visual contact directly over the surface of the tensile armor of the riser for the installation of equipment for analysis, which area permits further accesses without destroying the sealing of the chamber there formed.

Abstract: The present invention refers to a method wherein a test body is assembled in specific configurations to be submitted to testing in a conventional hydrostatic chamber. The method calls for assembling a test body that simulates cementing failures, the presence of stress anisotropy and a borehole of irregular geometry, by pressurizing said test body in a conventional hydrostatic chamber. The uniform forces are distributed circumferentially around a casing stream in a non-uniform way, simulating operating conditions that are as close as possible to reality, enabling an analysis of how the structure reacts in scenarios similar to actual conditions.

Abstract: Additives for mixing into the base catalyst inventory of the fluid catalytic cracking (FCC) process units, so as to achieve a high selectivity of light olefins (ethylene and propylene), are described. Such additives comprise an FER zeolite and an MFI zeolite, the MFI zeolite preferably being zeolite ZSM-5. The mixture of the additive in a concentration greater than 2% w/w relative to the base catalyst of an FCC unit allows greater selectivity for light olefins, propylene and ethylene, while maintaining catalytic activity.

Abstract: The present invention relates to an accessory device which comprises a damping sleeve (100), which is coupled to a bend stiffener (4), capable of acting in the anchoring operation of a riser (3) so as to eliminate the need for fuse cables and safety straps, the need to use a team of divers, and to guarantee the implementation of the operation in all sea conditions.

Abstract: The present invention relates to a method of preparing catalysts based on molybdenum sulphide, with an alkaline promoter incorporated, said catalysts being employed in the production of alcohols, especially ethanol, from synthesis gas. The method involves reaction of molybdenum hexacarbonyl (Mo(CO)6) with sulphur, so as to generate molybdenum sulphide, in which an alkaline promoter is then incorporated, so as to obtain a solid catalyst for application in processes of production of alcohols from synthesis gas, selective for ethanol.

Abstract: Method for transesterification of fatty acid esters. The method includes contacting (i) a catalyst comprising at least one of barium oxide and apatite with (ii) a reaction medium comprising at least one of vegetable oil and fats.

Abstract: This certificate of addition pertains to alternative constructive methods submitted for the components of the seal, resulting in increased efficiency and durability of the device, as well as the ease of assembly thereof. Compact restrictive seal (1) derived from these constructive alternatives can be applied indiscriminately to equipment lubricated by grease, fluid oil or oil mist.

Abstract: The present invention relates to a floating coastal structure used in water transportation terminals for production flowage of the petroleum industry. The structure exhibits a constructive configuration comprised of multiple monobuoys interconnected in an arrangement and in a specific dimensional relationship, being capable of reducing the instability and movements generated by the hydrodynamic effect of waves, thereby reducing the stresses of the accessory components, such as mooring lines, oil transfer lines and discharge hoses, connected to it.

Abstract: This invention concerns a process for obtaining lactic acid in a single stage by direct oxidation in an aqueous medium of 1,2-propanediol in the presence of a mixture of heterogeneous catalysts, in conditions of low temperature and low pressure. The reaction takes place in the presence of oxygen and a mixture of heterogeneous catalysts, consisting of a first catalyst of noble metal supported in metallic oxide, and a second basic solid catalyst. The mixture of catalysts is easily recovered by filtration at the end of the process, to be reused. The lactic acid is obtained directly, with selectivity between 50% and 97%.

Abstract: Current industrial processes for the production of lactic acid are fermentative, using lactic bacteria which require large volumes and create large quantities of liquid residue which need to be treated. Chemical literature also describes the use of reaction systems with homogeneous catalysis, which also pose problems which in turn impact our costs, owing to the increased requirements in terms of the control of the process and the type of reactor necessary. Therefore, the process used thus far, carried out in hydrogenolysis, isomerisation and oxidation are defective, owing to the significant formation of sub-products, mainly pyruvic acid and acetic acid and the low yield of lactic acid. Lactic acid can also be obtained by the chemical transformation of other sources other than starch, but which are also renewable. The present invention provides a oxidative process for the production of lactic acid, in which the reaction with pure oxygen or oxygen mixed with air takes place below 100° C.

Abstract: A composition of a packer fluid including biodiesel glycerin which can be used in deep and ultra-deep wells in environments containing CO2 and a process of using the same. This fluid may have a specific mass of at least 1.15 g/cm3, adequate viscosity for pumping at less than 2,000 cP and corrosive potential of up to 3 mm in 30 years. In addition, the packer fluid is compatible with the elastomers normally employed and does not degrade when exposed to temperatures lower than 100° C. The packer fluid is injected into an oil well as part of a well packer process.

Abstract: Current industrial processes for the production of lactic acid are fermentative, using lactic bacteria which require large volumes and create large quantities of liquid residue which need to be treated. Chemical literature also describes the use of reaction systems with homogeneous catalysis, which also pose problems which in turn impact our costs, owing to the increased requirements in terms of the control of the process and the type of reactor necessary. Therefore, the process used thus far, carried out in hydrogenolysis, isomerisation and oxidation are defective, owing to the significant formation of sub-products, mainly pyruvic acid and acetic acid and the low yield of lactic acid. Lactic acid can also be obtained by the chemical transformation of other sources other than starch, but which are also renewable. The present invention provides a oxidative process for the production of lactic acid, in which the reaction with pure oxygen or oxygen mixed with air takes place below 100° C.

Abstract: Method for transesterification of fatty acid esters. The method includes contacting (i) a catalyst comprising at least one of barium oxide and apatite with (ii) a reaction medium comprising at least one of vegetable oil and fats.

Abstract: The present invention relates to a supported catalyst for the polymerization of olefins. More specifically, the present invention provides a catalyst comprising a spherical alumina support modified by the addition of a magnesium compound containing a magnesium alkoxide and the product of the reaction of it with a titanium halide. The present invention also relates to the method for preparing said supported catalyst.