Search
Now showing items 1-10 of 21
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; ...
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 ...
Otimização multiobjetivo da produção integrada de etanol de primeira e segunda geração e energia elétrica : aspectos ambientais e de processo
(Universidade Federal de São Carlos, 2015-03-31)
Currently there is a growing increase in fuel consumption, but also an increased concern
about the end of fossil fuels and their environmental damage. In this scenario, secondgeneration
ethanol (E2G), produced from ...
Biorrefinaria florestal : uma proposta para integração dos processos de obtenção de nanocelulose e etanol 2G a partir da polpa de celulose de eucalipto
(Universidade Federal de São Carlos, 2016-02-29)
The use of eucalyptus kraft as biomass for an integrated production of sugars and new
added-value products such as nanocellulose, stands out a potential strategy for the
implementation of a forest biorefinary, that can ...