Da Silva, Rio De Janeiro
Carlos Alberto Dias Da Silva, Rio De Janeiro BR
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20110209981 | BIODIESEL PURIFICATION METHOD - The present invention concerns a process for purification of biodiesel obtained from castor seed oil for the purpose of promoting the efficient separation of the glycerine fraction formed during the transesterification reaction of a mixture of long-chain triglycerides derived from the oil in the presence of ethanol and an alkaline catalyst. | 09-01-2011 |
Celia-Santos Da Silva, Rio De Janeiro BR
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20090068126 | Composition for surface photoprotection - The molecules capable of absorbing ultraviolet radiation from the cashew nut shell liquid changes are the object of the present invention; it is also described the compositions responsible for protecting the surfaces and chemical processes for the referred molecules production. | 03-12-2009 |
Claudio Roberto Ribeiro Da Silva, Rio De Janeiro BR
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20110155558 | PROCESS FOR REDUCING NAPHTHENIC ACIDITY & SIMULTANEOUS INCREASE OF API GRAVITY OF HEAVY OILS - A process for API GRAVITY enrichment and the reduction of naphthenic acidity of petroleum, heavy petroleum, extra-heavy oil and oil mixtures and their fractions in the presence of microwave-absorbing materials, preferentially those which absorb radiation in localized sites forming nanoreactors, pure or in mixtures such as spent hydrotreatment catalysts. The process is characterized by causing an increase in the API GRAVITY of the petroleum or its mixtures, performing the cracking of the heavier fractions present in the petroleum and reducing the concentration of naphthenic acids present in the processed petroleum. This process is also characterized by operating at a relatively low temperature and pressure with an operating range that enables a simplified union of the microwave source with a petroleum enrichment industrial reactor. | 06-30-2011 |
Denner Antonio Da Silva, Rio De Janeiro BR
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20080275803 | METHOD FOR CAPTURING FINANCIAL SAVINGS FROM A COLLECTIVE THROUGH ISSUING AND SELLING OF ELECTRONIC CARDS - Business method for capturing popular saving with issue of credit papers with variable monetary values that can receive prizes and be redeemed for cash, good(s) or service(s) from a network of stores and companies. | 11-06-2008 |
Fabrico Soares Da Silva, Rio De Janeiro BR
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20120118818 | HYDROCYCLONE FOR THE SEPARATION OF FLUIDS - It is disclosed a hydrocyclone type separator having small dimensions for possessing high capacity for fluid processing by virtue of structural characteristics for feeding, of an upper outlet orifice (overflow) and of a lower outlet orifice (underflow). The feeding comprises two equal channels ( | 05-17-2012 |
Ivonete Pereira Gonzalez Da Silva, Rio De Janeiro BR
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20100006285 | SUSTAINABLE METHOD FOR RECOVERY OF PETROLEUM - 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. The present patent presents real gains in all phases of the production chain. | 01-14-2010 |
Luis Fernando Figueira Da Silva, Rio De Janeiro BR
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20110042518 | VORTEX GENERATOR FOR FLUSH AIR INLETS PERFORMANCE IMPROVEMENT - A VG (vortex generator) placed on a body surface (aircraft or similar), upstream of a flush air inlet, in order to generate vortexes that will sweep away the boundary layer in front of the inlet, inducing a downwash effect in the freestream airflow, such VG consisting of a wing ( | 02-24-2011 |
Luiz Guilherme Pereira Da Silva, Rio De Janeiro BR
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20100228681 | Semi-quantitative risk analysis - A semi-quantitative analysis on the risk management process increases the possibility of performing an accurate risks comparison, making easier the identification of which risks shall be prioritized and shall receive the greatest mitigation efforts. Specifically, the semi-quantitative risk analysis enables an improved risks comparison for evaluating the consequences of each risk considering its impacts on the project's Net Present Value (NPV), reflecting the project's cash flow at different times. The use of such method makes the prioritization process more efficient, helping the managers and other personnel involved on the process to focus their efforts to the most critical risks for the project's success. In this sense, the risk management process becomes more efficient and better able to provide better support to the project decision makers. | 09-09-2010 |
Monica Teixeira Da Silva, Rio De Janeiro BR
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20090294672 | METHOD FOR DETERMINATION OF THE TOTAL ACID NUMBER AND NAPHTHENIC ACID NUMBER OF PETROLEUM, PETROLEUM CUTS AND PETROLEUM EMULSIONS OF WATER-IN-OIL TYPE BY MID-INFRARED SPECTROSCOPY - The present invention relates to a method for the determination of the total acid number and naphthenic acid number of petroleum, petroleum cuts and petroleum emulsions of water-in-oil type by mid-infrared spectroscopy utilising correlation between data gathered by means of absorption spectrums obtained with a Fourier-transform infrared spectrophotometer operating in the mid-infrared band equipped with an attenuated total reflectance (ATR) accessory, and acidity results obtained through reference methods utilising a multivariate regression model. | 12-03-2009 |
Raissa Maria Cotta Ferreira Da Silva, Rio De Janeiro BR
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20090301932 | PROCESS FOR HYDROCONVERSION OF A MIXTURE OF ORGANIC OILS OF DIFFERENT ORIGINS - A process is described for hydroconversion of a mixture of organic oils of different origins in a conventional hydrotreatment unit, constituted by at least two catalyst beds, under moderately severe process conditions to obtain diesel fuel oil. The process includes injection of a stream of oil of animal or plant origin, with independently adjusted flow rates, from the second catalyst bed of the hydrotreatment unit onwards, in accordance with the variations in temperature observed in each of the catalyst beds after the first bed. The process is applicable to conventional hydrotreatment units, and makes it possible to overcome the effects of the highly exothermic nature of hydroconversion reactions in oils of animal and/or plant origin in hydrotreatment process for obtaining specified diesel fuel oil. | 12-10-2009 |
20100270207 | PROCESS FOR HYDROTREATING BIOMASS OIL DILUTED IN A REFINERY STREAM OF PETROLEUM HYDROCARBONS - A co-processing combining a first selective catalytic bed consisting of only one metal element selected from group VIB metals and of at least one conventional hydrotreating bimetallic catalytic bed. The co-processing provides control of the hydroconversion reactions of the triglycerides and/or fatty acids of biomass oil diluted in a refinery stream of petroleum hydrocarbons and minimizes the generation of gaseous products that are undesirable to the process, while maintaining the levels of unsaturated hydrocarbons hydrogenation and of heteroatomic contaminants removal from the refinery stream of petroleum hydrocarbons. The co-processing selectively providing n-paraffins of even number of carbon atoms, generated from the biomass oil, which are incorporated in a hydrotreated liquid product in petroleum refining HDT units. | 10-28-2010 |