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Now showing items 21-30 of 51
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. ...
Modelagem e simulação em plantas de etanol: uma abordagem técnico-econômica
(Universidade Federal de São Carlos, 2013-07-26)
The ethanol (fuel grade and anhydrous) is, fundamentally, the most relevant global biofuel nowadays, in energy, environmental, economic and technological terms. This scenario brings up the Brazilian ethanol, made from ...
Hidrólise enzimática dos polissacarídeos do café
(Universidade Federal de São Carlos, 2013-08-29)
Instant coffee is one of the main products generated by food industry worldwide, consisting of solubilized fraction from roasted and grounded coffee by heat treatment in two steps: thermal extraction at 125 0C, followed ...
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 ...
Secagem de sólidos porosos granulares
(Universidade Federal de São Carlos, 2014-07-18)
In the present work, an experimental study about heat and mass transfer phenomena was carried out during drying of porous media when subjected to an upward flow of heated air. The cylindrical porous media consisted of ...
Aplicação da fluidodinâmica computacional na avaliação da hidrodinâmica de estágio em colunas de destilação
(Universidade Federal de São Carlos, 2012-03-26)
The development of the design of chemical processes has received increasing improvement, incorporating sophisticated mathematical models, which allowed better simulation of its real behavior. The distillation column is one ...
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 ...
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, ...