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Avaliação do híbrido CTA-MCM-41, modificado por poliestireno, na transesterificação catalítica de monoéster
(Universidade Federal de São Carlos, 2013-09-29)
The present work shows a new technique applied to the synthesis of heterogeneous catalysts MCM-41 containing basic alkylammonium cations and the study of stability in the transesterification reactions of monoesters. MCM-41 ...
Análise da secagem convectiva de folhas de manjericão (Ocimum basilicum L.)
(Universidade Federal de São Carlos, 2013-03-19)
Convective drying of leaves involves heat and mass transfer in packed-beds of deformable material, since the leaves shrink significantly when the moisture is removed. Therefore, the packing structure changes over time, and ...
Purificação da Cefamicina C por processo de adsorção em coluna de leito fixo
(Universidade Federal de São Carlos, 2013-04-29)
Cephalosporins are β-lactam antibiotics which are widely used in the treatment of bacterial infections. Within this group, cephamycin C (CefC) stands out from the others cephalosporins antibiotics due to its greater ...
Óxidos mistos de magnésio e alumínio contendo lítio e cálcio como catalisadores para transesterificação etílica
(Universidade Federal de São Carlos, 2013-03-08)
This work deals with the investigation on the production of heterogeneous catalysts of base surface properties applied for ethylic transestérification, aiming the biodiesel production. In the first and second chapters of ...
Transferência de oxigênio e condições de cisalhamento em biorreator convencional com impelidores orelha de elefante
(Universidade Federal de São Carlos, 2013-09-30)
Due to owing to the nature of culture involving aerobic filamentous microorganisms, conventional aerated stirred-tank bioreactors using the Rushton turbine impeller are widely employed in order to achieve good mixing and ...
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 ...
Zéolitas ZSM-12 mesoporosas textura, cristalinidade e atividade ácida para o craqueamento de cicloexano
(Universidade Federal de São Carlos, 2013-09-12)
The research addressed the generation of mesoporosity in the zeolite ZSM-12 (MTW). In the first part we studied the synthesis of ZSM-12 via conventional methodology and in the presence of a mesopore directing agent, ...
Modelagem da eficiência de coleta em ciclones utilizando a fluidodinâmica computacional
(Universidade Federal de São Carlos, 2013-09-30)
Cyclones are used to separate suspended particles from gas streams. The analysis of flow inside the cyclone is complex due to the large number of parameters and operating variables that influence the dynamics of the system. ...
Hidrólise enzimática dos polissacarídeos do café
(Universidade Federal de São Carlos, 2013-08-29)
Instant coffee is one of the main products generated by food industry worldwide, consisting of solubilized fraction from roasted and grounded coffee by heat treatment in two steps: thermal extraction at 125 0C, followed ...
Produção de penicilina G acilase por organismos geneticamente modificados
(Universidade Federal de São Carlos, 2013-09-17)
Penicillin G acilase (PGA) is a key enzyme in the industrial production of β-lactamic antibiotics. In this work, it was studied the production of PGA from Escherichia coli by recombinant E. coli and from Bacillus ...