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Avaliação do catalisador CTA-MCM-41, modificado por poliacrilatos, na transesterificação de monoéster
(Universidade Federal de São Carlos, 2014-03-24)
The silica hybrid CTA-MCM-41 (where CTA is the cetyltrimethylammonium cation) was synthesized and used in the transesterification of ethyl acetate with methanol. This is a model reaction used to test basic catalysts for ...
Produção de etanol a partir da fração hemicelulósica do bagaço de cana usando glicose isomerase coimobilizada com Saccharomyces cerevisiae
(Universidade Federal de São Carlos, 2014-04-23)
Glucose isomerase (GI) was covalently immobilized and co-immobilized with baker yeast in calcium alginate beads for ethanol production by simultaneous isomerization and fermentation of xylose or hemicellulose hydrolysate ...
Contribuição ao estudo e modelagem matemática de reator anaeróbio de leito granular expandido (EGSB) tratando água residuária de suinocultura
(Universidade Federal de São Carlos, 2014-10-03)
Anaerobic systems have been widely studied and used in treatment of wastewater from agriculture and others. Among the existing technologies, there are the EGSB (Expanded Granular Sludge Bed) reactors, which have emerged ...
Produção de hidrogênio por reforma a vapor e oxidativa do etanol utilizando óxidos do tipo perovskita
(Universidade Federal de São Carlos, 2013-10-17)
This paper assesses the catalytic activities of LaCoO3 perovskite towards the steam reforming oxidative reaction of ethanol . Due to the low surface area which is commonly found on perovskite-type oxides , these were ...
Avaliação do desempenho de meios filtrantes fibrosos na remoção de partículas nanométricas
(Universidade Federal de São Carlos, 2014-03-31)
Fibrous filters are highly efficient in removing micrometric particles, but when is related on the removal of particles in the nanometer range, their performance is still poorly understood. During filtration, as the particles ...
Avaliação da produção de ciclodextrina glicosiltransferase (CGTase) por fermentação submersa de Paenibacillus sp.
(Universidade Federal de São Carlos, 2014-03-31)
Cyclodextrins (CDs) are cyclic oligosaccharides that show the ability to encapsulate a large number of organic molecules at the molecular level. Thus, they have large application in pharmaceutical, food, and cosmetics ...
Dessalinização usando tecnologia de deionização capacitiva
(Universidade Federal de São Carlos, 2015-02-20)
In this work, different commercial carbon materials that could be used as electrodes for capacitive deionization were investigated: carbon cloth, carbon foam, carbon felt, carbon fiber, carbon veil and activated carbon ...
Caracterização e eficiência de diferentes meios filtrantes fibrosos na remoção de nanopartículas
(Universidade Federal de São Carlos, 2015-01-23)
Human exposure to nanoparticles is increasingly becoming a concern, including in the workplace, due to urban and industrial development and the increasing use of motor vehicles. Filtration using fibrous filters is among ...
Síntese e propriedades da zeólita faujasita nanométrica aplicada à catálise básica
(Universidade Federal de São Carlos, 2015-02-24)
In order to increase accessibility to catalytic sites, several studies currently aimed at reducing the diameter of the particles of zeolites to the nanometer scale. So, the increase in aging temperature caused a reduction ...
Estudo da absorção do vapor de etanol, carregado por gás carbônico, em diferentes solventes
(Universidade Federal de São Carlos, 2015-02-27)
In Brazil, ethanol is produced from fermentation route, being a process well consolidated and largely used for decades in the production units without facing significant changes in its design. In order to increase the ...