Alcohol Fuel
Mostrando 13-24 de 104 artigos, teses e dissertações.
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13. Physico-chemical, spectroscopical and thermal characterization of biodiesel obtained by enzymatic route as a tool to select the most efficient immobilized lipase
Two microbial lipases from Burkholderia cepacia and Pseudomonas fluorescens were evaluated as catalysts for the enzymatic transesterification of beef tallow with ethanol and the most efficient lipase source was selected by taking into account the properties of the product to be used as fuel. Both lipases were immobilized on an epoxy silica-polyvinyl alcohol
Brazilian Journal of Chemical Engineering. Publicado em: 2012-03
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14. Preparação e caracterização de eletrocatalisadores PtSn/C - terras raras e PtRu/C - terra raras para a eletro- oxidação do etanol / Preparation and characterization of PtSn/C-rare earth and PtRu/C-rare earth using an alcohol reduction process for ethanol electro-oxidation
Os eletrocatalisadores PtRu/C-terras raras e PtSn/C-terras raras (20% em massa) foram preparados pelo método da redução por álcool utilizando H2PtCl6.6H2O RuCl3·xH2O, SnCl2.2H2O como fonte de metais, 85 % Vulcan - 15 % de terras raras como suporte e, por último, etileno glicol como agente redutor. Os eletrocatalisadores obtidos foram caracterizados fis
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/11/2011
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15. Um estudo dos processos de regulação e governança socioambiental do setor sucroalcooleiro no Brasil
In the last five years, there was an increase the ethanol production in Brazil, thanks to the ex-pansion of this sector in the Brazilian Cerrado. Despite all the scientific and technological development for sustainable production of ethanol, the environmental, social and labor also affect the credibility of the product, both domestically and externally. Alon
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/06/2011
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16. DESENVOLVIMENTO DE UM PROCESSO CONTÍNUO PARA PRODUÇÃO DE BIODIESEL A BAIXAS TEMPERATURAS. / DEVELOPMENT OF A CONTINUOUS PROCESS FOR PRODUCING BIODIESEL AT LOW TEMPERATURES.
Biodiesel has emerged worldwide as a promising alternative to oil-derived mineral fuels. It is biodegradable, renewable, obey to the carbon cycle and can be defined as fatty acid monoalquyl esters derived from renewable sources, such as vegetable oils and animal fats. It can be produced from a transesterification reaction, in which there is the transformatio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2011
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17. Desenvolvimento de membranas mistas a base de poli(indeno) sulfonado e PVA reticulado com objetivo de aplicação em célula a combustível tipo PEM
The study on alternative membranes for use in fuel cells PEM (Proton Exchange Membrane) has been conducted by different research groups worldwide. As the commercial membranes still have high cost and performance limitations in certain operating conditions of fuel cells powered by hydrogen and alcohol. This study aimed to evaluate non-fluorinated membranes pr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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18. A atuação do complexo agroindustrial canavieiro em rede : o exemplo de Nova Luzitânia-SP
The aim of this research was to analise the evolution of the production processes and work at the mesoregions of São José do Rio Preto and Araçatuba, mainly at the microregions of Auriflama and Araçatuba specifying the city of Nova Luzitânia. In these was developed the Agro-industrial Complex operating through the geographics nets. In order to better un
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/11/2010
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19. Evaluation of activated vegetal charcoal and vegetal polymer on the detoxification of the sugarcane hemicellulosic hydrolysate for biotechnological production of xylitol / Avaliação do carvão vegetal ativado e polímero vegetal na destoxificação do hidrolisado hemicelulósico de bagaço de cana-de-açúcar para a produção biotecnológica de xilitol
The increasing search for ethanol fuel in order to reduce the dependence and to promote the substitution of fossil fuels will contribute to higher accumulation of sugarcane bagasse in the environment. This biomass that in Brazil is a by-product of the sugar-alcohol mills, although it has been used for the generation of energy in the sugar and alcohol product
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2010
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20. "Resistência à Corrosão de Aços Inoxidáveis em Solução Sintética de Condensado de Álcool Combustível / "Resistência à Corrosão de Aços Inoxidáveis em Solução Sintética de Condensado de Álcool Combustível
Nowadays a great effort had been directed to research work in order to attend the environmental protection agencies demands for minimizing the levels of gases emission pollutants. The consumers requirements for more economic and durable vehicles had motivated also the researchers to look for more corrosion resistance materials in order to substitute the trad
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2010
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21. Estudo molecular e morfológico de leveduras de processos fermentativos de produção de etanol
Leveduras são microrganismos considerados de grande importância econômica por participarem de diversos processos industriais de fermentação. Linhagens comerciais de Saccharomyces cerevisiae, selecionadas por melhor se adaptarem a processos industriais, são utilizadas como inóculo na produção de álcool combustível. Durante o processo de produção
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2010
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22. OBTAINING THE HYDRATED ETHYL ALCOHOL OF AN ALCOHOLIC GRADUATION FOR AUTOMOTIVE USE: VALIDATION OF A BATCH PROCESS / OBTENÇÃO DO ÁLCOOL ETÍLICO HIDRATADO, COM GRADUAÇÃO ALCOÓLICA PARA USO AUTOMOTIVO: VALIDAÇÃO DE UM PROCESSO EM BATELADA
One of the most used for separation of alcohol and water is distillation. Traditionally the production of hydrated ethanol fuel is produced by large distilleries, which were freestanding or attached. A problem found for production of ethyl alcohol in small properties is related to the type of equipment used and the breaking of the paradigm of food production
Publicado em: 2010
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23. Modelos estatísticos integrados à metodologia Lean Seis Sigma visando ao aumento da produtividade na obtenção do etanol / Statistical models integrated with Lean Six Sigma methodology in order to increase productivity in obtain of ethanol
The sugarcane is one of the most important economic businesses in Brazil, in both terms of trade balance and job opportunity. Alcohol (ethanol), obtained from sugarcane, is a fuel cleaner, because it contains oxygen in its composition and is used in vehicles powered by ethanol, on the composition of automotive gasoline and ex-fuel vehicles. Ethanol burning p
Publicado em: 2010
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24. AVALIAÇÃO VOLTAMÉTRICA DOS ÍONS METÁLICOS (COBRE, CÁDMIO E CHUMBO) EM AMOSTRAS DE COMBUSTÍVEIS PREVIAMENTE DIGERIDAS EM MICROONDAS USANDO ELETRODO QUIMICAMENTE MODIFICADO POR SAIS TETRAZÓLIOS / EVALUATION OF METAL IONS VOLTAMMETRY(COPPER, CADMIUM AND LEAD) IN SAMPLES OF FUELS PREVIOUSLY DIGESTED IN USING MICROWAVE ELECTRODE CHEMICALLY MODIFIED BY SALTS TETRAZOLIUM.
This paper describes an analytical procedure for determination of trace metals copper, cadmium and lead in fuel samples, using Basal Plane Pyrolytic Graphite Modified Electrode (BPPGME) by tetrazolium salts: ([3,3 - (3-3 -dimethoxy-4, bifenililen 4 -bis [2 - (4-nitrophenyl)-5-phenyl-2H-tetrazolium (NBT) Cl 3 - (4,5 - dimetitiazol-2il) -2,5-diphenyl-2H-Tetraz
Publicado em: 2010