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Valoração de resíduos e subprodutos agroindustriais utilizando reatores anaeróbios em fermentação escura para produção de hidrogênio, etanol e ácidos orgânicos
(Universidade Federal de São Carlos, 2015-04-17)
The aim of this work was to evaluate hydrogen, ethanol and organic acids productions
from several substrate, including, agribusiness byproducts, such as cheese whey,
hydrolyzed cellulose and crude glycerol, and simple ...
Catalisadores de Co e Pt suportados em La2O3 e SiO2 aplicados na reforma a vapor do etanol
(Universidade Federal de São Carlos, 2015-03-24)
In intense search best environmental conditions, it is necessary to invest in renewable fuels, affordable and low polluting. With the aim to participate in this effort, this work was undertaken to study the steam reforming ...
A influência da morfologia do MgO nas propriedades catalíticas do SiO2/MgO para a formação de 1,3-Butadieno a partir de etanol
(Universidade Federal de São Carlos, 2016-05-31)
Ethanol has been largely studied in the past few decades as a substitute to fossil fuels
in the synthesis of a large variety of chemicals. 1,3-Butadiene, one of these compounds, is an important chemical intermediate and ...
Produção otimizada de 1,3-propanodiol, ácido propiônico, etanol e hidrogênio, a partir de glicerol bruto e cultura mista, em reator anaeróbio de leito fluidificado
(Universidade Federal de São Carlos, 2016-03-18)
This study aimed to optimize the production of hydrogen and other metabolites using
crude glycerol as substrate, through design of experiments (DoE) and statistical process
optimization. The first study aimed at optimizing ...
Sustentabilidade energética do etanol de primeira geração no Brasil : uma releitura crítica de referenciais metodológicos
(Universidade Federal de São Carlos, 2017-02-01)
In the long run, all fossil energy, such as oil, natural gas, coal, and radioactive material, will run out. Within a horizon of one or two centuries, all energy must come from renewable sources. The concept of sustainable ...
Destilação instantânea em regime transiente: Dorna Volante modificada
(Universidade Federal de São Carlos, 2016-03-29)
In the intense search for better environmental conditions, it is necessary not only to invest in renewable fuels but also to seek improvements in the production processes of these fuels. With this in mind, in this work the ...
Efeito da velocidade ascensional na produção de hidrogênio em reator anaeróbio de leito fluidizado
(Universidade Federal de São Carlos, 2010-08-30)
This study evaluated the influence of the upflow velocity in anaerobic fluidized bed reactor to produce hydrogen. In order to compare that effect, four reactors were used under different upflow velocities each: 0.30; 0.60; ...
Reforma a vapor do etanol sobre catalisadores de Co - Ni/MgAl2O4: propriedades estruturais e catalíticas em função da temperatura de reação
(Universidade Federal de São Carlos, 2016-08-05)
This thesis studied the effect of Co addition to Ni-based catalysts, focused on electronic and structural modification, as well as how these changes interfere on the catalytic properties, like reaction pathway and carbon ...
Catalisadores derivados de óxidos do tipo perovskita LaMO3, LaMFeO3 e LaMO3/γ-Al2O3 (M = Co, Ni ou Fe) aplicados à reforma a vapor de etanol
(Universidade Federal de São Carlos, 2014-07-30)
The hydrogen production has been extensively studied as a clean and powerful energy source, indicating that in the future hydrogen will became a key component for the global energy production, since burning fossil fuels, ...
Fermentação alcoólica: desenvolvimento de metodologia para o cálculo de eficiência e modelagem por redes neurais de unidade de fermentação industrial
(Universidade Federal de São Carlos, 2019-02-21)
The search for alternative sources of fuel, economically and environmentally viable, that could replace fossil fuels has increased in the last years. Brazil occupies a prominent position regarding the pioneering development ...