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Now showing items 131-140 of 142
Determinação experimental de Coeficientes de Atrito de diferentes partículas para aplicação na modelagem de escoamentos densos
(Universidade Federal de São Carlos, 2022-08-31)
Systems involving particles are very common in many engineering applications. The interaction between these particles and of them with the equipment surfaces can strongly affect their dis-tribution, which will often influence ...
Modelagem matemática e simulação computacional aplicadas ao estudo de processos de co-digestão anaeróbia de glicerol e/ou melaço
(Universidade Federal de São Carlos, 2022-11-29)
Policies worldwide are increasingly incentivizing and pressuring countries to use renewable sources of energy. Brazil was a pioneer in the production of bioethanol and is one of the main producers of biodiesel. Due to the ...
Avaliação do processo de produção de colorante natural vermelho pelo fungo endofítico Talaromyces minnesotensis
(Universidade Federal de São Carlos, 2022-06-29)
The growing incentive and awareness regarding the consumption and use of more sustainable proposals, biocolorants from filamentous fungi are presented as a promising alternative to synthetic colorants. These biocompounds ...
Oxidação do metano em metanol: efeito da natureza do oxidante na estrutura da espécie ativa em Cu-FAU e Cu-CHA
(Universidade Federal de São Carlos, 2023-02-27)
The direct oxidation of methane to methanol is carried out with metal-zeolite catalysts in three steps: (I) oxidation of metal oxide with O2; (II) partial oxidation of methane to methanol using active site oxygen, and (III) ...
Controle policromático de luz aplicado à produção de microalgas
(Universidade Federal de São Carlos, 2021-12-08)
Microalgae have drawn the attention of the biotechnology industry for being natural synthesizers of high added value products such as β-carotene, astaxanthin, lutein, docosahexaenoic acid, proteins, and pigments. However, ...
Efeito da acessibilidade aos sítios ácidos da Zeólita MFI na esterificação catalítica
(Universidade Federal de São Carlos, 2023-11-24)
In the context of increasing ethanol production through fermentation, substantial amounts of fusel oil are produced. Consequently, there is a growing interest in exploring methods to reuse fusel oil by transforming its ...
Análise técnico-econômica-ambiental da produção integrada de etanol e biodiesel no contexto brasileiro
(Universidade Federal de São Carlos, 2023-03-31)
The Greenhouse Gas (GHG) emissions must be reduced, it is a global emergency. Biofuels, such as ethanol and biodiesel, are indispensables parts of the brazilian renewable energy matrix, and has an essential place when ...
Modelagem e simulação de uma célula a combustível alcalina a glicerol direto
(Universidade Federal de São Carlos, 2021-02-18)
A wide range of work has been carried out with the aim of improving the operation of
fuel cells and making them applicable in different situations, in which mathematical
modeling and computer simulation are great allies. ...
Avaliação numérico-experimental da hidrodinâmica e da transferência de oxigênio em biorreator coluna de bolhas utilizando fluidodinâmica computacional
(Universidade Federal de São Carlos, 2023-04-28)
Pneumatic bioreactors are increasingly employed in bioprocesses due to their effective heat and mass transfer, rapid mixing, and efficient suspension of solids. Computational Fluid Dynamics (CFD) has emerged as a key tool ...
Síntese de catalisadores básicos na presença de surfactantes hexadeciltrimetilamônio
(Universidade Federal de São Carlos, 2023-06-12)
The synthesis of two basic catalysts — CTA-MCM-41 and ZIF-8 — were studied in the presence of the surfactant hexadecyltrimethylammonium bromide (CTAB), which forms micelles in aqueous dispersions. The catalysts were ...