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Now showing items 41-48 of 48
Craqueamento de cicloexano sobre zeólitas ácidas : atividade, seletividade e influência da presença de mesoporosidade
(Universidade Federal de São Carlos, 2012-03-30)
The need to develop a catalyst capable of processing heavy oil fractions, which is extracted from deeper wells, is essential. This concern has become more remarkable with the discovery of new oil fields in Brazil. This ...
Estudo da absorção do vapor de etanol, carregado por gás carbônico, em diferentes solventes
(Universidade Federal de São Carlos, 2015-02-27)
In Brazil, ethanol is produced from fermentation route, being a process well consolidated and largely used for decades in the production units without facing significant changes in its design. In order to increase the ...
Produção de ácido glucônico e xarope de frutose a partir de sacarose catalisada por enzimas em reator airlift
(Universidade Federal de São Carlos, 2013-03-21)
The sugarcane sugar (sucrose) is a raw material produced in abundance in Brazil, being attractive to produce high added-value by-products. The gluconic acid (GA) can be obtained by multienzymatic conversion of sucrose, ...
Degradação eletroquímica de compostos fenólicos usando eletrodo de diamante dopado com boro
(Universidade Federal de São Carlos, 2012-03-22)
The presence of organic compounds in industrial effluents is a serious environmental issue as well as for the human health, since most of those compounds are extremely toxic. The treatment of those effluents is done many ...
Catalisadores de Mo suportados sobre sílica, sílica-titânia ou sílica-zircônia promovidos por Co ou Ni: avaliação do método de preparação e da composição do suporte na atividade para HDS
(Universidade Federal de São Carlos, 2012-04-30)
Hydrodesulfurization (HDS) catalysts containing Mo, NiMo or CoMo were supported on silica, silica-titania and silica-zirconia. These supports were synthesized by the sol-gel method, using citric acid as an agent to pore ...
Secagem convectiva de folhas de hortelã: análise baseada no ajuste de correlações empíricas, superfícies de respostas e redes neurais
(Universidade Federal de São Carlos, 2013-03-15)
Mentha x villosa H. is a species of mint popularly known as regular mint. Besides being widely used as a spice, their leaves yield an essential oil with many healthy compounds that are commonly used in formulation of ...
Estudo experimental e numérico da fluidodinâmica e das transferências de calor e massa em um leito de jorro contínuo: uso da técnica CFD
(Universidade Federal de São Carlos, 2010-05-10)
In this work, the transport phenomena, which occur during the drying operation in a continuous spouted bed, are evaluated through experimental data and CFD simulations. Thus, this thesis was divided into three main parts: ...
Pré-tratamento alcalino (NaOH) do bagaço de cana-de açúcar para a produção de etanol e obtenção de xilooligômeros
(Universidade Federal de São Carlos, 2011-03-28)
The aim of this study was to optimize the pretreatment of sugarcane bagasse raw and exploded with diluted sulfuric acid, water and sodium hydroxide in order to obtain Xylooligosaccharides in hemicellulose and production ...