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Propriedades catalíticas de aluminossilicatos funcionalizados com propilaminas
(Universidade Federal de São Carlos, 2023-03-17)
In this work, the functionalization with aminopropyl-trimethoxysilane (APTMS) of aluminosilicates precursors of the Na-LTA zeolite was explored in the synthesis of basic catalysts for the Knoevenagel condensation. The ...
Produção de ácido hialurônico microbiano: viabilidade econômica e avaliação de impactos ambientais
(Universidade Federal de São Carlos, 2022-10-28)
Hyaluronic acid is a biopolymer with unique structural and rheological properties, that, initially, was produced by extraction from animal tissue, from rooster comb. However, it used non-ecofriendly solvents (chloroform) ...
Catalisadores NiFe/MgAl2O4 em reações de reforma a vapor: propriedades estruturais e catalíticas em função da composição Ni:Fe e temperatura de reação
(Universidade Federal de São Carlos, 2021-12-20)
This thesis evaluated the application of Ni-, Fe- and Ni-Fe/MgAl2O4 catalysts in Ethanol Steam Reforming (ESR), Ethanol Steam Reforming with hydrogen gas (ESRH), Methane Dry Reforming (RSM), Methane Steam Reforming (RVM) ...
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 ...
Transesterificação heterogênea catalisada por sílicas contendo sítios básicos e cátions cetilvinilimidazólio
(Universidade Federal de São Carlos, 2022-05-12)
Homogeneous catalysis is the most used process in the production of biodiesel, although this process has several disadvantages such as: the catalyst cannot be easily reused and requires parallel processes for separation ...
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 ...
Produção de coquetel enzimático rico em endoglucanase termoestável em biorreator de leito empacotado e sua aplicação na obtenção de nanocelulose
(Universidade Federal de São Carlos, 2021-10-21)
Nanocellulose is a bioproduct with high added value obtained through the conversion of lignocellulosic biomass. Due to characteristics such as high aspect ratio, low toxicity, thermal stability and high crystallinity, ...
Evaluation of filter media with fiber layer produced by the centrifugal spinning method with biocidal effect
(Universidade Federal de São Carlos, 2020-03-12)
This study aimed to evaluate the air filtration performance of the fiber layer, produced by centrifugal spinning equipment, adhered to the surface of a commercial filter media applied to the internal ventilation system. ...
Síntese de compostos C2+ a partir de CO2 e H2O aplicando materiais de Cu e Cu-Zn: estudos na catálise heterogênea em fase gasosa e eletrocatálise
(Universidade Federal de São Carlos, 2020-08-25)
Strategies aimed at recycling of CO2 in producing chemicals and fuels are needed to reduce the environmental impacts caused by this gas and attend the industrial interests. Among the all applied strategies, we highlight ...
Mitigação dos inibidores gerados no pré-tratamento da biomassa vegetal: impacto técnico-econômico-ambiental de diferentes rotas de processo na biorrefinaria
(Universidade Federal de São Carlos, 2021-04-27)
The presence of inhibitors is still an economic bottleneck that needs to be resolved in order to make 1G2G ethanol biorefineries feasible, requiring the development of technologies capable of improving their competitiveness ...