Search
Now showing items 251-260 of 285
Remoção de etanol por stripping empregando dióxido de carbono
(Universidade Federal de São Carlos, 2014-12-15)
In the ethanol fermentation processes, the product inhibition phenomenon limits the ethanol concentration in the fermented wine around 10% v.v-1, which results in a large volume of vinasse (around 12Lvinasse/Lethanol) and ...
Produção de hidrogênio e etanol através da fermentação acidogênica de águas residuárias agroindustriais em reator anaeróbio de leito fluidizado
(Universidade Federal de São Carlos, 2014-03-28)
The aim of this study was to evaluate the influence of hydraulic retention time (HRT), the origin of different inoculum (sludge from a UASB reactor for swine wastewater treatment and poultry slaughterhouse), and different ...
Modelagem da eficiência de coleta em ciclones utilizando a fluidodinâmica computacional
(Universidade Federal de São Carlos, 2013-09-30)
Cyclones are used to separate suspended particles from gas streams. The analysis of flow inside the cyclone is complex due to the large number of parameters and operating variables that influence the dynamics of the system. ...
Monitoramento em tempo real e simulação de controle da umidade de pós produzidos pela secagem de pastas em leito de jorro
(Universidade Federal de São Carlos, 2015-03-31)
The direct control of the product moisture content in dryers would be more interesting. However, as it happens with other processes, it is a concentration control, which is commonly dependent on slow or expensive procedures ...
Avaliação do desempenho de meios filtrantes fibrosos na remoção de partículas nanométricas
(Universidade Federal de São Carlos, 2014-03-31)
Fibrous filters are highly efficient in removing micrometric particles, but when is related on the removal of particles in the nanometer range, their performance is still poorly understood. During filtration, as the particles ...
Reforma a vapor do metano sobre catalisadores de Pt-Ni/α-Al2O3: efeito das condições de síntese e do teor da Pt nas propriedades de oxi-redução, estruturais e catalíticas
(Universidade Federal de São Carlos, 2011-06-29)
In recent years, the demand for hydrogen has increased considerably in Petrobras refineries, due to the installation of fuel hydrotreating units. These units are necessary to meet new quality standards, which are imposed ...
Influência da contaminação combinada de dextrana e amido na cristalização do açúcar
(Universidade Federal de São Carlos, 2014-10-08)
Introduced during the colonial period in Brazil, nowadays sugar cane is one of the main crops of the country's economy, generating more than 2 billion dollars per year in the Brazilian trade balance. Despite the benefits ...
Avaliação de diferentes configurações de hidrólise enzimática e fermentação utilizando bagaço de cana-de-açúcar para a produção de etanol 2G
(Universidade Federal de São Carlos, 2015-03-27)
Sugarcane bagasse (SCB) is a by-product generated after sugarcane milling in the process of manufacture of sugar and/or ethanol. In this study, pretreated SCB was used in different configurations of enzymatic hydrolysis ...
Determinação da força de adesão entre partícula e superfícies rugosas através da técnica centrífuga
(Universidade Federal de São Carlos, 2014-03-28)
Adhesion between powders and surfaces plays an important role in various technological areas and processes, such as paste drying operations, fluidization of fine particles, microencapsulation, xerography and in food and ...
Síntese e caracterização de catalisadores de óxido de cálcio suportado em ferritas magnéticas avaliados na reação de transesterificação etílica
(Universidade Federal de São Carlos, 2015-03-16)
The petroleum crisis associated with global warming and environmental pollution has motivated researchers to investigate more profoundly the feasibility of alternative energy sources. Biofuels have been recently regaining ...