Search
Now showing items 21-30 of 389
Nanopartículas de Pt suportadas em Al2O3 e CeO2-Al2O3: síntese e caracterização de catalisadores aplicados à reação de deslocamento gás-água
(Universidade Federal de São Carlos, 2011-04-28)
Colloidal Pt nanoparticles were synthesized according to an adapted procedure from Song and co-workers [1], which it was based on the reduction of dihydrogen hexachloroplatinate by ethylene glycol in a basic solution, but ...
Desempenho de meios filtrantes na filtração de gases a altas pressões
(Universidade Federal de São Carlos, 2011-09-21)
The presence of residue in the transport of natural gas in pipelines may result in numerous losses for the gas companies, such as obstruction of measuring equipment, decrease in product quality, and reduction in the lifetime ...
Desenvolvimento de tecnologia para extração e recuperação de polihidroxialcanoatos obtidos a partir da sacarose de cana-de-açúcar
(Universidade Federal de São Carlos, 2011-11-30)
The main objective of this study was to contribute to the development of a competitive and sustainable process to produce polyhydroxyalkanoates (PHA's) from the fermentation substrate sucrose cane sugar. The study involved ...
Estudo da alimentação de sólidos em sistemas de transporte pneumático
(Universidade Federal de São Carlos, 2011-03-03)
One of the most important parts in a pneumatic conveying is the solids feeding system due its complexity fluid dynamic, besides affecting the operational stability, economical and technical feasibility and system efficiency. ...
Simulação de um alimentador Venturi em trecho ascendente no transporte pneumático de sólidos
(Universidade Federal de São Carlos, 2012-08-30)
The radial and axial distributions of coarse solids when fed directly in a riser are unknown, despite this type of feeding is very important for drying and preheating of solids during conveying. In this context, this thesis ...
Sistema automático de supervisão e controle de cultivos de alta densidade celular de E. coli recombinante
(Universidade Federal de São Carlos, 2011-12-22)
High cell density cultivations of recombinant E. coli are a fast and economical way to produce recombinant proteins. Through this bioprocess, products with high added value and pharmaceuticals of great importance such as ...
Produção de xilo-oligossacarídeos a partir de lignocelulósicos pré-tratados com xilanases imobilizadas e estabilzadas
(Universidade Federal de São Carlos, 2012-02-28)
Endoxylanase, an important industrial enzyme, cleaves ß-1,4-xylanosidic bounds in xylan chains, main plant hemicellulose component. Xylan can be explored to produce many products, among them xylo-oligosaccharides, XOS, ...
Estudo da preparação e das propriedades estruturais de catalisadores para a transformação do metano em gás de síntese e hidrocarbonetos
(Universidade Federal de São Carlos, 2010-06-15)
Pt catalysts supported on CeO2-La2O3-Al2O3, with different mixed oxide compositions, and CeO2-ZrO2-Al2O3, prepared using three different routes, were synthesized by sol gel technique. The samples were characterized using ...
Síntese e avaliação de sílica tipo M41S contendo cátions CTA em transesterificação catalítica
(Universidade Federal de São Carlos, 2010-08-13)
The investments in the biofuel production have increased a lot in the last years mainly because of smaller damages they cause to the environment in comparison with the derived conventional petroleum fuels. The reaction of ...
Secagem de materiais têxteis
(Universidade Federal de São Carlos, 2016-04-08)
The fabrics are derived from fibers, which are divided into to main groups: natural (like cotton) and chemical (such as rayon and polyester). In the processing of the fabric, drying is a major operation, contributing to ...