| PETROLEO BRASILEIRO S.A. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110260443 | CORROSION MANAGEMENT SYSTEMS FOR CONTROLLING, ELIMINATING AND/OR MANAGING CORROSION - The present invention generally relates to corrosion management systems designed to deliver corrosion protection and/or the management of corrosion to a connector, a connection, a welded joint, or some other type of interface (e.g., a valve joint used to join to portions of piping). In another embodiment, the present invention relates to systems designed to deliver at least one form of corrosion, UV, salt spray, and/or fire damage protection, mitigation and/or the management to a connector, a connection, a welded joint, or some other type of interface (e.g., a flange used to join to portions of piping). | 10-27-2011 |
| 20090200230 | METHOD FOR REMOVING POLLUTANTS FROM PRODUCED WATER - A method which improves the quality of effluent from the process of the industrial production of petroleum, usually referred to as produced water. This method makes it possible to reduce the concentration of pollutants in produced water requiring treatment by removing these pollutants through the use of cultures of microalgae that have passed through a process of natural selection and are naturally adapted to the hostile environment offered by produced water. | 08-13-2009 |
| 20090137703 | PIGMENTABLE ASPHALT BINDER COMPOSITION - The present invention relates to the preparation of a pigmentable asphalt binder composition obtained from petroleum- and shale-refining streams, having a low content of asphaltenes, aromatic diluents of high aromaticity, polymers and inorganic pigments, obtaining a coloured product. The composition of the present invention is employed in paving, permitting embellishment of roads, greater light reflection and reduction in coating temperature and in addition greater resistance to permanent deformation due to its excellent temperature susceptibility and higher softening point. | 05-28-2009 |
| 20090134063 | DEVICE AND PROCESS FOR DISTRIBUTION OF MIXED CHARGES ONTO FIXED BEDS OF CATALYST IN DESCENDING-FLOW REACTORS - The present invention relates to a device and respective process for distribution of mixed charges comprising a flat tray in the form of a disc drained by a series of drainage tubes located above the surface of fixed beds of catalysts, capable of promoting the homogenisation and distribution of charges by means of said device. | 05-28-2009 |
| 20080221226 | Method for the microwave treatment of water-in-oil emulsions - Method for the microwave emulsion treatment of water-in-oil (W/O) emulsions, including a) determining, for an W/O emulsion the optimum conditions of the variables: water content, salt content, pH value of the aqueous phase, initial temperature, microwave application power, final temperature and drop size distribution to be adjusted in the industrial plant, as a function of the features of the tested crude oil such as viscosity, density, asphaltene content, total acidity, such conditions being those required for obtaining at least 90% separation efficiency of the emulsion in the presence of microwave radiation: b) utilizing such information for the initial adjustment of application conditions of the method to phase separation units in refineries and production units; c) perform on line tests of the variables of step a) of the process response in the streams effluent from separation units, being the response the water content and salt content tests, so as to feedback the information to the best adjustment of the process conditions for microwave application; and d) utilizing the on line or laboratory tests of the effect of the method as a tool for monitoring the efficiency of the breaking of the W/O emulsion. | 09-11-2008 |
