Diesel S 50
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Redução da emissão de material particulado em função da inserção de misturas do biodiesel de soja e mamona ao diesel
RESUMO Preocupações ambientais e econômicas resultantes da demanda por combustíveis fósseis corroboram a necessidade de alternativas para redução dos impactos ambientais e econômicos advindos da crescente utilização de veículos e máquinas movidas a diesel. A diversificação das matérias-primas para produção do biodiesel pode possibilitar a me
Eng. Sanit. Ambient.. Publicado em: 2018-03
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2. Fine and Coarse Aerosol at Rio de Janeiro prior to the Olympic Games: Chemical Composition and Source Apportionment
During the period from June 2012 to June 2013, the concentrations and chemical composition of PM2.5 and PM2.5-10 (particulate matter with a diameter of 2.5 μm or less and between 2.5 and 10 μm, respectively) were monitored at four sampling points in the Rio de Janeiro metropolitan area, and two of the points were in close proximity to the 2016 Olympic Game
J. Braz. Chem. Soc.. Publicado em: 2018-03
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3. Application of Full Factorial Design to Evaluate the Effect of Different Variables on the Stability of Biodiesel:Diesel Blends under Storage Conditions
Biodiesel is obtained from a renewable source and has been used as an alternative to fossil fuels. It has unsaturated fatty acid methyl esters that can degrade due to oxidation of the double bonds. The instability of biodiesel during storage may cause problems regarding the maintenance and operation of motors. This work evaluated the effect of several variab
J. Braz. Chem. Soc.. Publicado em: 2017-10
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4. PERFORMANCE OF AN AGRICULTURAL DIESEL ENGINE USING DIFFERENTS FUELS
ABSTRACT The use of fuels for agricultural Diesel engines cycle, both of mineral origin (Diesel) or vegetable and animal origin (biodiesel) can significantly alter its performance. Therefore, the aim of this study was to quantify the change in torque, power and consumption of agricultural Diesel engine fuel using minerals and vegetables fuels. It was used a
Eng. Agríc.. Publicado em: 2017-02
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5. BIOLEACHING OF METALS FROM A SPENT DIESEL HYDRODESULFURIZATION CATALYST EMPLOYING Acidithiobacillus thiooxidans FG-01
Abstract This study evaluates the recovery of heavy metals employing a spent catalyst from the hydrodesulfurization (HDS) of diesel, with no chemical, thermal or physical pretreatment, using the bacterial strain Acidithiobacillus thiooxidans FG-01. Direct and indirect bioleaching tests were carried out in Erlenmeyer flasks (500 mL). The influence of the pulp
Braz. J. Chem. Eng.. Publicado em: 2017-01
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6. Emissões de motor agrícola com o uso de diferentes tipos de diesel e concentrações de biodiesel na mistura combustível
Resumo: O objetivo deste trabalho foi quantificar o efeito do tipo de diesel e da concentração de biodiesel na mistura combustível sobre as emissões de gases por motor agrícola submetido a diferentes cargas. Foram testados dois tipos de diesel: S10, com baixo teor de enxofre; e S500, com alto teor de enxofre; bem como suas misturas com 5, 10, 15, 20, 50
Pesq. agropec. bras.. Publicado em: 2015-12
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7. Correlation Between Fuel Lubricity and Vibration Signals Obtained in Ball-disc Analysis Using Fourier Transform
During the contact between metallic surfaces in mechanical systems, some dynamic characteristics present significant changes as the vibration signal patterns. The acquisition and characterization of these signals, by the use of Fourier Transform (FT), are non-intrusive tools in the evaluation of lubricity. This study aimed to evaluate dynamically the fuels l
Mat. Res.. Publicado em: 24/11/2015
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8. DETERMINAÇÃO DO TEOR DE BIODIESEL EM DIESEL EMPREGANDO O ENSAIO COLORIMÉTRICO DO ÁCIDO HIDROXÂMICO
The aim of this paper was to use colorimetric assays for hydroxamic acid to quantify the biodiesel content in diesel and compare it with the traditional method (infrared spectroscopy, using the EN 14078 method). Samples were prepared from B2 to B10 with two kinds of diesel - S500 (red) and S50 (yellow) - to obtain two calibration curves. Through statistical
Quím. Nova. Publicado em: 2015-05
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9. Desempenho e emissões de um motor-gerador ciclo diesel sob diferentes concentrações de biodiesel de soja
No cenário atual brasileiro de constantes quedas de energia e iminência de uma crise no setor elétrico, a utilização de grupos geradores tem sido bastante comum no meio rural e os bicombustíveis, como o biodiesel, representam uma opção para diversificação da matriz energética. Este trabalho objetivou avaliar o uso do biodiesel de soja em diferente
Rev. bras. eng. agríc. ambient.. Publicado em: 2013-05
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10. Avaliação e comparação do número de cetano obtido por métodos alternativos (normatizados e não normatizados) uma análise estatística. / Evaluation and Comparison of Cetane Number obtained by alternative methods (Standardized and Non-Standardized) A Statistical Analysis.
No Brasil, a maior empregabilidade do óleo diesel é no sistema rodoviário de transporte de cargas, tornando necessário um rigoroso acompanhamento da qualidade de ignição deste combustível Dentre os parâmetros físicos e químicos, o Número de Cetano (NC) é um dos mais comuns indicadores da qualidade do óleo diesel. Além do método padrão (ASTM D
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/09/2012
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11. Antiwear and antioxidant studies of cardanol phosphate ester additives
In the search for new applications and products derived from Cashew Nut Shell Liquid (CNSL), we report herein the synthesis and characterization (GC/MS and ¹H, 13C, and 31P NMR) of four phosphate esters derived from hydrogenated cardanol, including their applications as antiwear additives for diesel (S500) and as antioxidant additives for mineral oils, eval
Braz. J. Chem. Eng.. Publicado em: 2012-09
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12. Small-scale experimental contamination with diesel oil does not affect the recolonization of Sargassum (Fucales) fronds by vagile macrofauna
Coastal regions are subject to various forms of environmental impacts, such as spills of crude oil and associated products, with a wide range of effects on benthic biodiversity. This study characterized the patterns of recolonization of the macrofauna associated with the brown alga Sargassum cymosum(C. Agardh), on fronds contaminated by diesel oil in a small
Zoologia (Curitiba). Publicado em: 2012-04