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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 ...
Precoating em filtro de mangas para remoção de material particulado e potencial redução da emissão de SO2 na dessulfurização
(Universidade Federal de São Carlos, 2023-05-25)
The steel industry is responsible for generating pollutants that need to be treated before being released into the atmosphere, various gases such as ammonia, benzene, carbon monoxide, sulfur dioxide and particulate matter. ...
Influência da composição da mistura reacional no desempenho de catalisadores NiFe/MgAl2O4 em reações de reforma
(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) ...
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 ...
Liquid-solid fluidized bed dynamics: experimental and computational analysis
(Universidade Federal de São Carlos, 2023-11-06)
The liquid-solid fluidization is a simple process intensification strategy. The method remains underexplored, in part, due to the lack of predictability. It is not trivial to assess its internal dynamics without a robust ...
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) ...
Síntese de celulose bacteriana a partir de resíduos lignocelulósicos via evolução adaptativa
(Universidade Federal de São Carlos, 2019-05-21)
Bacterial cellulose (BC) is produced mainly by the Komagataeibacter genus. BC is a biopolymer free of impurities, built from the interlacing of cellulose nanofibers, which presents remarkable properties, such as: high ...
Sistema multienzimático inovador para a produção de ácido glicônico a partir de amido usando células inteiras de Aspergillus niger
(Universidade Federal de São Carlos, 2023-11-28)
Gluconic acid occurs naturally in a wide variety of foods, including fruit, honey, wine, rice, meat and other naturally fermented products. Because of its versatility and biodegradability, it has many applications in the ...
Avaliação da eficiência de precipitadores eletrostáticos na coleta de nanopartículas a partir de modificações operacionais e geométricas
(Universidade Federal de São Carlos, 2024-01-30)
The application of air pollution control systems has become indispensable for industries and environments that have a high amount of particulate matter. Due to the harmful nature associated with the inhalation of these ...