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Hidrodinâmica e transferência de oxigênio em três biorreatores Airlift de circulação interna geometricamente semelhantes
(Universidade Federal de São Carlos, 2009-03-12)
Internal-loop airlift reactors (ALR) are a special class of pneumatic reactors. The use of this type of reactor has been attractive for chemical and biological reactions because of their simple construction without moving ...
Modelo matemático do processo de purificação do ácido clavulânico por troca iônica em coluna de leito fixo
(Universidade Federal de São Carlos, 2009-08-04)
Clavulanic acid (CA) is a β-lactam antibiotic produced industrially by submerged cultures of the filamentous bacterium Streptomyces clavuligerus. Due to its importance, several studies on the purification of clavulanic ...
Eletrodissolução de alumínio em polpa celulósica proveniente da reciclagem de embalagens cartonadas multicamadas
(Universidade Federal de São Carlos, 2009-03-09)
In this work we studied the aluminum electro-dissolution in cellulose pulp from milk and beverage cartons recycling. The objective for this research is to reduce the aluminum particles sizes to values below 300 μm. ...
Isomerização do n-heptano sobre catalisadores bifuncionais Pt-Ni suportados em zeólitas BEA e FAU
(Universidade Federal de São Carlos, 2009-12-09)
The objective of this paper was to study the influence of metal loading content on the properties of bimetallic catalysts, formed by Pt and Ni, supported on zeolite HUSY and HBEA. Another objective of this study was to ...
Fluidodinâmica de leitos fluidizados e vibrofluidizados operando com partículas planas
(Universidade Federal de São Carlos, 2009-03-12)
The use of fluidized beds as a unit operation for drying of particulate materials is common in industrial processes. However, most works published in the literature, focus the drying of uniform particles, in a narrow range ...
Simulação da perda de carga e da eficiência de coleta em ciclones através da fluidodinâmica computacional (CFD)
(Universidade Federal de São Carlos, 2009-08-05)
El objetivo del presente trabajo fue simular la descarga de un flujo compuesto por fases gaseosa y solida dentro de un equipo denominado ciclón mediante la técnica numérica denominada Fluido dinámica computacional (CFD). ...
Imobilização da enzima β-galactosidase de Kluyveromyces fragilis em agarose e quitosana utilizando diferentes protocolos de ativação
(Universidade Federal de São Carlos, 2009-02-27)
The objective of this work was stabilize and immobilize β-galactosidase from activated agarose and chitosan supports. Initially, it was evaluated the buffer type, ionic strength and bivalent ions Mn2+ and Mg2+ on the ...
Secagem de sementes de Arachis hipogae L. com capa protetora
(Universidade Federal de São Carlos, 2009-02-20)
Arachis hipogae L. peanut is an orthodox seed that must go through a drying process to become free from aflatoxin. The fruit is formed by a system made up by a nucleus and a resistant involucre that constitutes a heterogeneous ...
Catalisadores contendo espécies V2O5 ou VO2+ : atividade e seletividade na redução de NO com amônia
(Universidade Federal de São Carlos, 2009-08-03)
The selective catalytic reduction of NOx with ammonia is the best technology available today to carry out the abatement of nitrogen oxide emissions in industrial gas effluents. Currently, vanadia-titania catalysts promoted ...
Transformação de cicloexano e metilcicloexano sobre as zeólitas HMCM-22, HZSM-5 e HUSY rendimento e seletividade a hidrocarbonetos leves
(Universidade Federal de São Carlos, 2009-03-27)
In Brazil, the oil production with high naphthenic hydrocarbon (HC) content and the hard growing for the petrochemical market have led to the necessity to maximize the production of light HC (in special light olefins). The ...