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Catalisadores de CuO, Fe2O3 ou Co3O4 suportados em TiO2, CeO2 ou ZrO2: preparação via Sol-gel in situ ou impregnação e avaliação na redução de NO com CO
(Universidade Federal de São Carlos, 2012-04-13)
The minimization of the emissions of nitrogen oxides (NOx) is a subject of crucial interest, since them cause serious environmental problems which affect human health, vegetation and fauna. With the purpose to abate NOx, ...
Aplicação da fluidodinâmica computacional (CFD) no estudo do escoamento de ar e deposição de partículas em vias aéreas pulmonares
(Universidade Federal de São Carlos, 2014-02-28)
The industrialization process and the fast growth of cities lead to an increase of respiratory diseases and, therefore, lead to the beginning of studies involving particle deposition in human lung airways. This work used ...
Análise do desempenho do leito vibrofluidizado na secagem de pasta
(Universidade Federal de São Carlos, 2017-05-05)
The agitation promoted by the vibrofluidized bed allows the incorporation of several unitary operations such as granulation, coating of particle, drying of grains, and the drying of pasty materials. However, it is necessary ...
Estudo da alimentação de sólidos em sistemas de transporte pneumático
(Universidade Federal de São Carlos, 2011-03-03)
One of the most important parts in a pneumatic conveying is the solids feeding system due its complexity fluid dynamic, besides affecting the operational stability, economical and technical feasibility and system efficiency. ...
Modelo de contribuições de grupos aplicado a reações para a formação do biodiesel
(Universidade Federal de São Carlos, 2010-02-23)
The interest in biofuels has increased substantially in recent years due, mainly, to reduced damage to the environment compared to conventional fuels derived from petroleum. Accordingly, biodiesel has been studied by ...
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 ...
Isomerização do n-Hexano por platina suportada na zeólita H-ZSM-5 : efeito do teor de alumínio
(Universidade Federal de São Carlos, 2011-08-01)
The objective of this study was to verify the influence of the Si/Al ratio (11.5, 15.0, 25.0, 40.0 and 140.0) in zeolite ZSM-5 in the conversion, activity, selectivity and stability as bifunctional catalysts (Pt/H-ZSM-5) ...
Investigação do efeito de injeção de líquido por orifícios múltiplos na formação de gotas em um lavador Venturi
(Universidade Federal de São Carlos, 2009-02-20)
Venturi scrubbers are widely used in industrial plants in the cleaning of gases. In these scrubbers, the cleaning elements are the droplets formed at the injection of a liquid in the gas
containing pollutants. The droplets ...
Sistema automático de supervisão e controle de cultivos de alta densidade celular de E. coli recombinante
(Universidade Federal de São Carlos, 2011-12-22)
High cell density cultivations of recombinant E. coli are a fast and economical way to produce recombinant proteins. Through this bioprocess, products with high added value and pharmaceuticals of great importance such as ...
Busca heurística e inferência de parâmetros cinéticos de reações de hidrotratamento de óleo diesel a partir de dados experimentais escassos
(Universidade Federal de São Carlos, 2011-06-30)
Currently, the amount of contaminants (such as sulfur, nitrogen and aromatics) in diesel oil is strictly controlled, due to their impact on pollutant emissions. The most important process used to meet fuel specifications ...