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Now showing items 41-48 of 48
Produção de hidrogênio em reator anaeróbio de leito fluidizado a partir de glicerol bruto sob condições termofílicas
(Universidade Federal de São Carlos, 2014-03-25)
This study aimed to evaluate the influence of the hydraulic retention time (HRT) on hydrogen production using crude glycerol as a substrate in an anaerobic fluidized bed reactor (AFBR ) . The reactor had a volume of 1979 ...
Controle preditivo não linear para sistemas de parâmetros distribuídos
(Universidade Federal de São Carlos, 2014-08-28)
In general, the chemical processes can be represented using mathematical models, in the case of lumped systems include ordinary differential equations, or, partial differential equations, when distributed parameter systems ...
Aplicação de técnicas de modelagem e simulação para a produção de etanol de segunda geração
(Universidade Federal de São Carlos, 2013-09-20)
The use of fossil fuels has a significant impact on the environment, making biofuels a renewable and friendly alternative. Brazil, as one of the leading producers of sugar and ethanol, generates as main residue sugar cane ...
Otimização da produção de etanol 2G a partir de hexoses e pentoses
(Universidade Federal de São Carlos, 2014-02-27)
The industrial production of fuel ethanol and sugar generates the main byproduct of sugarcane bagasse, which is burned in boilers for power generation. However, as a lignocellulosic material (consisting basically of three ...
Hidrólise enzimática da palha de cana-de-açúcar: estudo cinético e modelagem matemática semi-mecanística
(Universidade Federal de São Carlos, 2015-03-06)
For biofuels production, the recovery of lignocellulosic feedstock is seen as a promising alternative, both from environmental and economic point of views. Among the lignocellulosic biomasses most important in Brazil, ...
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 ...
Influência de aspectos geométricos na hidrodinâmica e transferência de oxigênio de biorreatores airlift de circulação interna
(Universidade Federal de São Carlos, 2014-02-28)
The performance of pneumatic bioreactors is highly related to their geometric characteristics, such as the bottom clearance, riser to downcomer cross sectional area ratio, liquid height and the gas-liquid separator design. ...
Recuperação de metais a partir da lama vermelha
(Universidade Federal de São Carlos, 2015-08-25)
This paper describes an integrated process for recovering aluminum, iron, titanium, sodium and silica from red mud through a hydrometallurgical treatment sequence. The disposal of red mud, which is the largest waste produced ...