Gasoline Properties
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. 1H NMR and Chemometric Methods to Estimate the Octane Number in Brazilian C Gasolines
Brazilian gasoline type C can be purchased with octane number as the main difference. This quality parameter directly affects the price. Intermediate formulations may not be easily distinguished from conform samples due to similarity in visual appearance and physicochemical properties. The use of anhydrous ethanol as an additive also influences the octane va
J. Braz. Chem. Soc.. Publicado em: 2020-08
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2. Genetic Engineering In BioButanol Production And Tolerance
ABSTRACT The growing need to address current energy and environmental problems has sparked an interest in developing improved biological methods to produce liquid fuels from renewable sources. Higher-chain alcohols possess chemical properties that are more similar to gasoline. Ethanol and butanol are two products which are used as biofuel. Butanol production
Braz. arch. biol. technol.. Publicado em: 01/12/2016
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3. Desenvolvimento de um analisador de processo por espectroscopia no infravermelho próximo (NIR) para previsão de propriedades de derivados de petróleo / Development of a near-infrared process analyzer for the prediction of properties of petroleum products
O trabalho trata do desenvolvimento de um analisador de processo utilizando a espectroscopia no infravermelho próximo (NIR) para prever propriedades de derivados de petróleo, como gasolina e querosene de aviação. O instrumento foi projetado para ser instalado diretamente em uma linha de processo numa unidade industrial, realizando, de maneira automatizad
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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4. Recovery of hydrocarbon liquid from waste high density polyethylene by thermal pyrolysis
Thermal degradation of waste plastics in an inert atmosphere has been regarded as a productive method, because this process can convert waste plastics into hydrocarbons that can be used either as fuels or as a source of chemicals. In this work, waste high-density polyethylene (HDPE) plastic was chosen as the material for pyrolysis. A simple pyrolysis reactor
Brazilian Journal of Chemical Engineering. Publicado em: 2011-12
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5. Estudo de tratamento de interface proveniente de polidutos
The São Paulo Brasília Pipeline (OSBRA), owed by PETROBRAS, starts at the Planalto Refinery (REPLAN) and supplies gasoline, Diesel oil and liquefied petroleum gas (LPG) to the mid-west region of Brazil. The pipeline is 786 kilometers long with diameter of 20 inches in its first segment and 178 kilometers with 12 inches of diameter in the second. The fuels
Publicado em: 2009
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6. Função de acoplamento t-Student assimetrica : modelagem de dependencia assimetrica / Skewed t-Student copula function : skewed dependence modelling
The Skewed t-Student distribution family, constructed upon the multivariate normal mixture distribution, known as mean-variance mixture, composed with the Inverse-Gamma distribution, has many desirable flexibility properties for many distribution asymmetry structures. These properties are explored by constructing copula functions with asymmetric dependence.
Publicado em: 2008
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7. Use of a biofuel obtained from the fast pyrolysis of sugarcane trash in an Otto engine / Uso de biocombustivel da pirolise rapida da palha de cana em um motor de ciclo Otto
In September 2002 the state of São Paulo promulgated the Law Nº 11241 by which was codified the gradual elimination of fire as a method to remove trash from the sugar-cane fields before harvestig. Large amounts of sugar-cane trash with an important energy potential will be available as a result of this law. New technologies to harvest and process this biom
Publicado em: 2007
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8. Desenvolvimento de um equipamento para avaliação do efeito do etanol na pressão de vapor e entalpia de vaporização em gasolinas automotivas
The quality of the gasoline utilized for fueling internal combustion engines with spark ignition is directly affected by the gasoline's properties. Thus, the fuel's properties must be in perfect equilibrium to allow the engine to perform optimally, not only insofar as fuel consumption is concerned, but also in order to reduce the emission of pollutants. Vapo
Química Nova. Publicado em: 2006-06
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9. H3PO4/Al2O3 catalysts: characterization and catalytic evaluation of oleic acid conversion to biofuels and biolubricant
Al2O3 and H3PO4/Al2O3 catalysts were investigated in the conversion of oleic acid to biofuels and biolubricant at 1 atm and at 623 K. The catalytic tests were performed in a fixed bed and continuous flow reactor, using an oleic acid-catalyst ratio of 4 and N2 as the carrier gas. The reaction products were analyzed by gas chromatography and acidity measuremen
Materials Research. Publicado em: 2006-06
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10. Development of an equipament for the study of transport of automotives pollutants in unsaturated soils / Desenvolvimento de um equipamento para o estudo do transporte de poluentes automotivos em solos não saturados
This work had as main objective the development of an equipment for the experimental determination of the characteristic curve of suction, and the experimental determination of the effective permeability to unmixed fluids in multiphase systems (three phases), specifically gasoline, water and air, being focused the several properties involved in the multiphas
Publicado em: 2006
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11. Investigação ambiental em posto de abastecimento de combustiveis no municipio de Seropedica - RJ / Environmental survey of a Seropedica city gas station, Rio de Janeiro State, Brazil
Gas stations create a recognized potential threat of contamination to soil, groundwater and air. Brazilian environmental laws regulate the technical standards regarding the installation, equipaments and operation of gas stations in addition to requiring environrnental licenses. Accidents may expose the population to toxic and flammable substances. In Seropé
Publicado em: 2006
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12. Predição de propriedades de gasolinas a partir das suas composições. / Prediction of gasoline properties from composition data
As gasolinas comerciais são normalmente produzidas a partir de combinações de frações oriundas da destilação do petróleo ou de outros processos petroquímicos e de refino e realizadas de modo a atender uma variedade de especificações legais e ambientais, com o mínimo de custo possível. A qualidade para o uso e comercialização de uma gasolina é
Publicado em: 2006