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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 ...
Hidrotalcitas de Ni-Mg-Al como precursores de catalisadores para produção de gás de síntese a partir de biogás
(Universidade Federal de São Carlos, 2010-07-29)
Catalysts obtained by thermal decomposition of the precursors with hydrotalcite-like structure [Mg1-xAlx (OH)2]x+ [CO3]x/n. mH2O and [Ni1-x Mg1-xAlx (OH)2]x+ [CO3]x/n. mH2O were prepared, characterized and tested in the ...
Efeito das condições de preparação da [CTA+]-SiMCM-41 na atividade da transesterificação
(Universidade Federal de São Carlos, 2010-02-26)
The hybrid [CTA+]-SiMCM-41 mesoporous material (where CTA+ is the cetyltrimethylammonium cation) was employed as synthesized in the transesterification reaction between ethyl acetate and methanol. This is a model reaction ...
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 ...
Estudo da força de adesão de tortas de filtração de gases em diferentes condições operacionais
(Universidade Federal de São Carlos, 2010-03-08)
Gas filtration is one of the most important methods used in gas-solid separation. During a filtration process, a gas containing an amount of solid particles passes through a porous filter medium which retains the particles. ...
Determinação experimental da força de adesão entre partículas e meios filtrantes constituídos de celulose
(Universidade Federal de São Carlos, 2010-05-07)
The influence of particle size, compression velocity, and of the material constituting the substrate on adhesion force between particle and substrate was investigated in this study. The centrifuge technique was applied for ...
Estudo da cristalização da frutose em diferentes meios
(Universidade Federal de São Carlos, 2010-03-09)
The phenomena of fructose crystal nucleation and growth in different media, and its water and ethanol/water solubility curves, which were the base of this process, were studied through the fructose crystallization process. ...
Estudo da compressibilidade de tortas de filtração de gases em filtros de tecido
(Universidade Federal de São Carlos, 2010-03-31)
A study on the compressibility of gas filtration cakes through their porosity investigation is presented in this work. The experimental unit consisted of a circular filter with a filtration area of 249 cm2 and a data ...
Comparação dos processos de eletrodeposição de íons cobre usando reatores de leito fluidizado e leito de jorro
(Universidade Federal de São Carlos, 2010-06-22)
In this work was studied the process of removal of ions has covered simulated effluent gifts in watery having used electrochemical reactor of fluidized stream bed and of stream bed of I gush out whose porous cathodes were ...