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Efeito de forças hidrodinâmicas em colisões partícula-superfície em diferentes meios fluidos
(Universidade Federal de São Carlos, 2023-12-20)
Energy dissipation in systems, such as solid-gas and solid-liquid, can occur in several ways, including resistance to motion, interfacial interactions, deformation, and particle collision. In gas-solid flows, the main ...
Electrochemical desalination using polyglycerol activated carbon: electrode, cell, and process development
(Universidade Federal de São Carlos, 2022-11-18)
Capacitive deionization (CDI) has emerged as a promising electrochemical technology for the desalination of brackish water, which promotes the electrosorption of ions in the electrical double layer. In recent years, there ...
Estudos sobre a produção de nanofibras de PVA via electrospinning e sua aplicação em filtração de nanoaerossóis
(Universidade Federal de São Carlos, 2022-09-30)
Poly(vinyl alcohol) nanofibers for air filtration were produced by electrospinning using citric acid and different concentrations of Triton X-100 surfactant. Filtration tests with nanoparticles (5.94–224.7 nm) and tests ...
Comparação da eletroxidação de compostos orgânicos usando eletrodos plano e tela considerando a área eletroativa e a transferência de massa
(Universidade Federal de São Carlos, 2022-02-22)
Toxic organic compounds present in industrial effluents have their concentration limits for disposal determined by increasingly strict environmental and sanitary laws, as they can cause serious problems to the environment ...
Estudo de MOFs zeolíticas de imidazolato com Zn(II) e Co(II) e emprego na condensação de Knoevenagel
(Universidade Federal de São Carlos, 2021-05-26)
A new segment of porous materials has emerged last years: metal organic frameworks (MOFs). Zeolitic imidazolate frameworks (ZIFs), a subclass of MOFs, are formed by metallic cations and imidazolates presenting similar ...
Catalisadores de Au/ZrO2 e Au/In2O3/ZrO2: Efeito das propriedades eletrônicas e estruturais na atividade para desidrogenação do etanol e hidrogenação de CO2
(Universidade Federal de São Carlos, 2022-10-28)
Au/ZrO2 and Au/In2O3/ZrO2 catalysts were developed for CO2 hydrogenation reaction and Au/ZrO2 for ethanol dehydrogenation. The monometallic gold catalysts supported on ZrO2 with different contents (0.3 to 5.0%w/w) were ...
Influência da costura na performance de meios filtrantes aplicados em filtro de mangas
(Universidade Federal de São Carlos, 2022-08-30)
There is a variety of filter bags available in the market for cleaning gases, composed of different materials, of various sizes, with several surface treatments, high efficiency, and different finishes, which enables the ...
Formação do carbonato de glicerol por transesterificação catalítica heterogênea
(Universidade Federal de São Carlos, 2022-04-29)
The industrial production of biodiesel has generated large amounts of glycerol, transforming this co-product into raw material for other processes. Notably, glycerol carbonate has emerged as a promising substance for the ...
Utilização do CO2 em substituição ao O2 na ativação de Cu-MAZ na oxidação do metano a metanol
(Universidade Federal de São Carlos, 2022-10-27)
Converting methane to methanol has been a challenge for decades due to the high reactivity of methanol compared to methane. One of the challenges of this reaction to take it to an industrial scale was to find a safer oxidant ...
Implementação de sistema nebuloso (“fuzzy”) para controle de oxigênio dissolvido no cultivo de Escherichia coli para expressão de proteínas recombinantes
(Universidade Federal de São Carlos, 2022-04-27)
Due to low oxygen solubility in water and mechanical limitations of a bioreactor, ensuring an adequate dissolved oxygen supply during a recombinant Escherichia coli cultivation is a major challenge in process control. In ...