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Catalisadores à base de ferro, vanádio e molibdênio suportados em titanatos lamelares e TiO2 comercial na aplicação da reação de NO com NH3
(Universidade Federal de São Carlos, 2011-10-27)
The minimization of emissions of nitrogen oxides (NOx) is a subject of great interest because they cause serious environmental problems affecting human health, flora and fauna. To break down the NOx catalytic reduction of ...
Preparação de catalisadores Fe/FER e Fe2O3/FER: avaliação na redução de NO com CO
(Universidade Federal de São Carlos, 2012-08-30)
Due to the development of society, industrial processes and transportation (cars, buses, trucks, etc.) that emit pollutants are used, which affect the environment and consequently human health, flora and fauna. Among these ...
Sustentabilidade energética do etanol de primeira geração no Brasil : uma releitura crítica de referenciais metodológicos
(Universidade Federal de São Carlos, 2017-02-01)
In the long run, all fossil energy, such as oil, natural gas, coal, and radioactive material, will run out. Within a horizon of one or two centuries, all energy must come from renewable sources. The concept of sustainable ...
Catalisadores com estrutura do tipo perovskitas PrCo1-xNixO3 para produção de gás de síntese
(Universidade Federal de São Carlos, 2017-03-14)
Energy is an essential component for a country's development. Since Brazilians’ main energy source is the oil and it has limited reserves, an alternative is needed for a synthesis of fuels throughout other raw materials, ...
Síntese da sílica MCM-41 usando um surfactante catiônico polimerizável e avaliação na transesterificação catalítica
(Universidade Federal de São Carlos, 2014-02-20)
The masters work presented is result of a great effort provided by the group, which has worked with changes in the synthesis of CTA-MCM-41. The synthesis of the M41S family (composed of mesoporous silica MCM-41, MCM-48 and ...
Destilação instantânea em regime transiente: Dorna Volante modificada
(Universidade Federal de São Carlos, 2016-03-29)
In the intense search for better environmental conditions, it is necessary not only to invest in renewable fuels but also to seek improvements in the production processes of these fuels. With this in mind, in this work the ...
Produção de monoéster via etanólise por hidrotalcitas termoativadas: síntese e caracterização
(Universidade Federal de São Carlos, 2011-03-31)
Among biofuels of the 1st generation, biodiesel stands out for its equivalent features to those of mineral diesel, however less polluting. It can be obtained by transesterification of triglyceride fats or vegetable oils ...
Síntese e caracterização de nanocatalisadores de platina suportados aplicados à reação de reforma do metano
(Universidade Federal de São Carlos, 2010-03-05)
Colloidal Nanoparticles of Platinum (Pt-NPs) were obtained by reducing hexacloroplatinic acid with ethylene glycol in the presence of polyvinylpyrrolidone (PVP) as protective agent of the particles. Two methods of synthesis ...
Formação de acetato de etila a partir do etanol sobre catalisadores de Cu/ZrO2: efeito da carga de cobre nas propriedades físicas e catalíticas
(Universidade Federal de São Carlos, 2010-03-10)
The ethanol dehydrocoupling in ethyl acetate distinguishes among the reactions of alcohol transformation in products with higher added value. Due to the possibility of obtaining ethanol from biomass in Brazil, the production ...
Estudo da geração de nanopartículas a partir da atomização de soluções de cloreto de sódio
(Universidade Federal de São Carlos, 2010-02-22)
Particles of nanometric dimensions are subjected, in recent years, to extensive research all over the world, not only for the possible risks that they cause when inhaled, but also for the wide range of applications and ...