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Now showing items 161-170 of 286
Seletividade da Clinoptilolita natural por metais tóxicos em sistemas aquosos.
(Universidade Federal de São Carlos, 2004-12-13)
Natural zeolites are the most important inorganic cationic exchangers exhibiting high
ion exchange capacity, selectivity and environment compatibility.
Heavy metals are well known for toxicity and their disposal is a ...
Secagem convectiva de folhas visando a obtenção de compostos bioativos via extração supercrítica
(Universidade Federal de São Carlos, 2019-04-11)
In this work, an investigation through experimentation and mathematical modeling was carried out with the intention of evaluating the drying process of pitangueira (Eugenia uniflora L.) and olive tree (Olea europaea L.) ...
Desenvolvimento e avaliação de meios filtrantes com nanofibras eletrofiadas e agentes bactericidas aplicados na filtração de ar
(Universidade Federal de São Carlos, 2019-03-29)
Filtration processes using fibrous filter media are very used to retain microparticles in a stream air due to its simple use, low operational cost and high collection efficiency. However, the study of submicron particles ...
Análise do desempenho de meios filtrantes na filtração de nanopartículas durante o aumento de sua queda de pressão
(Universidade Federal de São Carlos, 2019-02-27)
The performance of filter media in filtration is the main factor in choosing a material that meets the requirements for a filtration process. It takes into consideration the collection efficiency, permeability, pressure ...
Modificação de meios filtrantes com nanomateriais para controle de bioaerossóis
(Universidade Federal de São Carlos, 2018-06-15)
People are increasingly wasting their time in indoors environments, in these locations there is a risk of contagion from diseases transmitted by the airways, due to low rates of air exchange. Thus, the number of causative ...
Modelagem e simulação de aspectos hidrodinâmicos e cinéticos do processo de gaseificação de biomassa utilizando CFD
(Universidade Federal de São Carlos, 2017-06-28)
One of the major problems faced by humanity nowadays is the issue of preserving the environment. In recent years, progress has been accelerated, having a direct influence on the environmental impacts caused by several kinds ...
Sobre a estabilidade de catalisadores de cobalto suportados durante a reforma do etanol
(Universidade Federal de São Carlos, 2012-06-11)
Cobalt-based catalysts supported on γ-alumina and magnesium aluminate modified with lanthanum and cerium have been applied to various conditions of reforming of ethanol. The initial challenge was to control the rate ...
Assesment of alternative routes for sugarcane-based ethanol recovery: exergy and economic analysis
(Universidade Federal de São Carlos, 2018-02-28)
The aim of this thesis was to develop a methodological approach that can systematically guide process simulation for better understanding of bioethanol production process. In the present work, the ethanol production process ...
Estudo da produção de bioetanol e biobutanol a partir da palha de cana-de-açúcar
(Universidade Federal de São Carlos, 2019-02-18)
The present thesis studied the hydrolysis and fermentation steps of the hydrothermally pretreated sugarcane straw (cellulosic fraction), aiming bioethanol and biobutanol production. In regards to the hydrolysis step, it ...
Avaliação de adsorventes obtidos a partir de resíduos agroindustriais para a remoção dos inibidores gerados no pré-tratamento da biomassa lignocelulósica
(Universidade Federal de São Carlos, 2019-02-26)
The pretreatment of lignocellulosic biomass generates phenolic compounds and furaldehydes that inhibit the enzymes and yeast used in the process of hydrolysis of cellulose and alcoholic fermentation. In this context, the ...