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Produção de monoéster via etanólise por hidrotalcitas termoativadas: síntese e caracterização
(Universidade Federal de São Carlos, 2011-03-31)
Among biofuels of the 1st generation, biodiesel stands out for its equivalent features to those of mineral diesel, however less polluting. It can be obtained by transesterification of triglyceride fats or vegetable oils ...
Hidrólise e fermentação do bagaço de cana-de-açúcar em escala de bancada para produção de etanol 2G
(Universidade Federal de São Carlos, 2011-08-26)
The objective of this work was to evaluate the hydrolysis and alcoholic fermentation stages of the sugar cane bagasse (SCB) for second generation ethanol production (2G). Hydrolysis experiments were carried out employing ...
Estudo sobre a síntese de zeólitas sodalíticas utilizando planejamento de experimentos
(Universidade Federal de São Carlos, 2011-03-09)
Through the synthesis conditions used were possible to exploit different variables in order to obtain different zeolitic structures, whose main were those formed from sodalitics units (LTA and FAU). From clear solutions ...
Pré-tratamento do bagaço de cana de açúcar com amônia aquosa para a produção de etanol
(Universidade Federal de São Carlos, 2011-02-28)
The aim of this work was evaluated the sugarcane bagasse (SCB) pretreatment by aqueous ammonia, an alkaline method. Samples of SCB (in natura and steam exploded unwashed) were pretreated with ammonium hydroxide solution ...
Modelagem e simulação dinâmica de reatores de leito fixo
(Universidade Federal de São Carlos, 2011-02-25)
This work investigated numerical methods in the solution of mathematical models of fixed-bed reactors. For the reactors modeling and simulation, two numerical methods were used: sequencing method (SM) and finite volume ...
Pré-tratamento organossolve do bagaço de cana-de-açúcar para a produção de etanol e obtenção de xilooligômeros
(Universidade Federal de São Carlos, 2011-03-29)
Sugarcane bagasse is an abundant lignocelulosic byproduct, due to the high ethanol production from sugarcane juice, which turns this residue an attractive alternative for obtaining cellulosic ethanol and other products of ...
Estudos preliminares de produção de ácido glucônico a partir de sacarose invertida em biorreator airlift
(Universidade Federal de São Carlos, 2011-12-22)
The use of sucrose for the production of industrial inputs with higher added value has a great industrial interest, especially glucose and fructose which present many advantages over sucrose in industrial processes. Gluconic ...
Estudo da cinética e do equilíbrio da adsorção da cefamicina C em resina de troca iônica e simulação do processo contínuo
(Universidade Federal de São Carlos, 2011-03-01)
The cephamycin C (CefC) is a beta-lactam antibiotic produced from submerged and aerated cultures of Streptomyces clavuligerus. Acts as inhibitor of cell wall formation of Gram-negative bacteria and is resistant to the ...
Isomerização do n-Hexano por platina suportada na zeólita H-ZSM-5 : efeito do teor de alumínio
(Universidade Federal de São Carlos, 2011-08-01)
The objective of this study was to verify the influence of the Si/Al ratio (11.5, 15.0, 25.0, 40.0 and 140.0) in zeolite ZSM-5 in the conversion, activity, selectivity and stability as bifunctional catalysts (Pt/H-ZSM-5) ...
Estudo cinético da hidrólise enzimática de celulose de bagaço de cana-de-açúcar
(Universidade Federal de São Carlos, 2011-03-28)
This work presents a kinetic study of the enzymatic hydrolysis of three cellulosic substrates: filter paper (FP), used as a de-lignified substrate model; sugarcane bagasse (SB) steam exploded; and acid treated SB, the last ...