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Avaliação da transferência de quantidade de movimento, energia e das espécies químicas em um prato perfurado de destilação através da fluidodinâmica computacional
(Universidade Federal de São Carlos, 2016-03-24)
The development of the design of chemical processes has received increasing improvement, incorporating sophisticated mathematical models, which allowed better simulation of its real behavior. Distillation is one of the ...
Lipases imobilizadas em suportes híbridos como biocatalisadores para a produção de ésteres de açúcares
(Universidade Federal de São Carlos, 2016-05-25)
The use of lipases in large scale processes is limited due to their high cost. The reuse of the catalyst can contribute to make the enzymatic process more attractive. Hydrophobic supports are the mostly used for lipase ...
Photocatalytic degradation of organic pollutants through peroxymonosulfate activation: photocatalysts and reaction mechanisms
(Universidade Federal de São Carlos, 2023-06-30)
Water pollution from organic compounds has become a growing concern worldwide due to the risks imposed on human health and the environment. The rapid advancements in the pharmaceutical and agricultural industries have ...
On the drag coefficient in particle agglomerates: a CFD approach to propose a new drag correlation
(Universidade Federal de São Carlos, 2023-07-31)
In particle-laden flows, it is essential to model the fluid-particle interaction. However, depending on effects such as friction and attraction, surface properties, and collisions, particles can agglomerate, generating new ...
Borra de café: análise da caracterização termoquímica, do processo de elutriação, secagem, peletização e da mistura com outros resíduos
(Universidade Federal de São Carlos, 2023-04-27)
For the reuse of the spent coffee grounds, this thesis has two main strategies, the first is to evaluate its granulometry as a function of the thermal degradation behavior, the elutriation, drying process, pelletization ...
Secagem convectiva de concentrado de minério de ferro: abordagem experimental e simulações por fluidodinâmica computacional
(Universidade Federal de São Carlos, 2023-02-27)
Conventional transfer chutes are equipment used to change the solids flow direction in transporting systems that use conveyor belts. During operation, the solid transported by the upper conveyor belt enters the chute and ...
Recuperação de fosfolipídios residuais do farelo desengordurado de soja
(Universidade Federal de São Carlos, 2014-08-07)
In soybean processing industry, oil extraction with hexane generates defatted meal. Next, soybean protein concentrate (SPC) production from the defatted meal by using ethanol solution generates alcoholic micelle as a ...
Reforma autotérmica do metano: estudo do Processo e de catalisadores
(Universidade Federal de São Carlos, 2005-05-07)
The study of the autothermal reforming of methane over Ni/γ-Al2O3 catalyst, promoted with noble metals was the objective of this work.
In the first part, the stability to coke deposition of the autothermal reforming was ...
Estudo do desempenho de eliminadores de névoa na fermentação alcoólica extrativa
(Universidade Federal de São Carlos, 2021-08-27)
The ethanol removal by gas stripping with CO2 offers a potential way to minimize the inhibitory effects of ethanol on yeast cells during the alcoholic fermentation, allowing higher ethanol volumetric productivity compared ...
“Compreensão das propriedades estruturais e de superfície de catalisadores de platina promovidos com cério através de técnicas de caracterização in situ sob a reação de deslocamento gás-água”
(Universidade Federal de São Carlos, 2014-04-28)
Pt based catalysts were measured with in situ X ray absorption fine structure spectroscopy (XAFS) to obtain information about the catalyst crystalline structure and electronic properties as a function of catalyst composition, ...