Closed Reactor
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. American Space Nuclear Electric Systems
ABSTRACT: Since the 1960's the United States of America has launched several space missions using nuclear technology as a mean for propulsion and power supply. The majority of the American nuclear powered spacecrafts were based in radioisotope generators, with the exception of the SNAP-10A (1965), which was the only American reactor ever launched. However, s
J. Aerosp. Technol. Manag.. Publicado em: 01/11/2018
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2. Investigação da reação de Morita-Baylis-Hillman em reator de micro-ondas usando aldeídos aromáticos e isatina como eletrófilos: avaliação da atividade citotóxica em linhagem de células de leucemia promielocítica humanas (HL-60). / Investigation of Morita-Baylis-Hillman Reaction on Microwave Reactor using Aromatic Aldehydes and Isatin as Eletrophiles: Evaluation of Cytotoxic Activity in cell line human promyelocytic leukemia (HL-60).
In this work, we describe the investigation of the Morita-Baylis-Hillman reaction in microwave reactor, under closed vessel conditions to prepare 40 adducts, six novel, using 30 aromatic aldehydes and isatin as electrophiles and acrylonitrile (62a) , methyl acrylate (2), hydroxyethyl acrylate (62b), 2,2-dimethyl-1 ,3-dioxalyl acrylate (62c) and 2,3-dihydroxy
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/11/2012
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3. BIODECOMPOSIÇÃO DE RESÍDUOS ORGÂNICOS DOMÉSTICOS EM REATOR FECHADO E CARACTERIZAÇÃO DO COMPOSTO OBTIDO POR TÉCNICAS CONVENCIONAIS E ESPECTROSCÓPICAS
Este trabalho tem por objetivo estudar o processo de biodecomposição de resíduos orgânicos domésticos (ROD) em reatores fechados tipo BIOLAR e caracterizar o composto obtido utilizando métodos convencionais e técnicas espectroscópicas. Dentro desta perspectiva foram feitos dois biodecompositores, no interior dos quais foram colocados diariamente ROD
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/03/2012
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4. Estudos de simulação computacional do processo de redução de UF4 a Urânio metálico / computational simulation studies of the reduction process of UF4 to metallic uranium
The production of metallic uranium is essential for production of fuel elements for using in nuclear reactors manufacturing of radioisotopes and radiopharmaceuticals. In IPEN, metallic uranium is produced by magnesiothermical reduction of UF4. This reaction is performed in a closed graphite crucible inserted in a sealed metal reactor and no contact with the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/12/2010
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5. Identificação do modelo do processo em malha fechada com controlador MPC. / Model identification in closed loop in a process with a MPC control.
This work aims at the development of a methodology to the re-identification of the model to be used in a MPC, which is developed in a two layers structure: a target calculation layer and a dynamic layer where the targets to the inputs are implemented. It is expected that the reidentification procedure should be started whenever it is observed a significant d
Publicado em: 2009
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6. Subspace predictive control. / Controle preditivo com enfoque em subespaços.
Model Predictive Control (MPC) technology is widely used in chemical process industries. Subspace identification (SID) on the other hand has proven to be an efficient alternative for classical system identification methods. Based on the results from MPC and SID, it was developed in the late 90s a new control approach, called Subspace Predictive Control (SPC)
Publicado em: 2009
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7. CEFALOSPORINAS E SURFACTANTE NÃO-IÔNICO EM EFLUENTE HOSPITALAR: DETERMINAÇÃO, DEGRADAÇÃO POR MEIO DE FOTÓLISE E ELETROCOAGULAÇÃO E IDENTIFICAÇÃO DE SUBPRODUTOS E METABÓLITOS / CEFALOSPORINS AND NON IONIC SURFACTANTS IN HOSPITAL WASTEWATER: DETERMINATION, DEGRADATION BY MEANS OF PHOTOLYSIS AND ELECTROCOAGULATION AND IDENTIFICATION OF BYPRODUCTS AND METABOLITES
The currently incorrect and excessive consumption of pharmaceuticals and surfactants, mainly domestic usage, has become a concern to the scientific community around the world, due to the environmental consequences with regard to the bacterial resistance (characteristic of antibiotics), and alteration of hormonal systems (provoked by the degradation products
Publicado em: 2009
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8. Estudo de reação da resina fenolica sob pressão / Study of phenolic resin reaction under pressure
This study analyzes a phenol formaldehyde resin and to develop it in order to reach a time reduction in the cycle time and, in second plane, to evaluate if it improves the resin characteristics in the application. The study concentrated on the condensation step, where the formation of the chain of polymer occurs. The comparison between the reaction of the ph
Publicado em: 2008
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9. Otimização da operação do alto-forno 1 da V&M do Brasil com "STAVE COOLER" através da distribuição de carga no topo do forno.
V&M Brazil Blast Furnace 1 is the first charcoal operating furnace in the world with copper "stave cooler". As a new technology, for this type of reactor, the furnace operation was started taking in account some basis already used in coke Blast furnaces. But, it was not enough; and after start up, we observed a great variation in thermal losses of refrigerat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/10/2006
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10. CinÃtica da reduÃÃo de NOx pelo Ãcido amino sulfÃmico: modelagem e desenvolvimento
Elevated levels of nitrogen oxides (NOX) from flue gases have recently become a major issue in industrial environment. This causes that the laws are becoming each time more demanding. The most employed reduction processes are: absorption by an aqueous acidic solution and catalytic gas-solid reduction. The nitrogen oxides absorbed into water leads to the form
Publicado em: 2006
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11. INDUSTRIAL FILTER BAG CHEMICAL RECICLING / Reciclagem química de PET proveniente de filtros industriais pós-consumo
The PET filter bag is used in the separation of the particulates materials of the gas produced in the aluminum industry. It had been submitted a chemical recycling. Almost industries make the disposal of these materials in industrial earthwork or still they take the centers that make the energy recycling. The filter bag restrained particulate is constituted
Publicado em: 2006
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12. Ti O IND.2 heterogeneous photocatalysis in secondary wastewater treatment / Fotocatálise heterogênea com Ti O IND.2 aplicada ao tratamento de esgoto sanitário secundário
The heterogeneous photocatalysis with Ti O IND.2 and solar radiation in secondary wastewater treatment to remove organic matter and microorganisms was investigated. A glass plate (approximate 0.48 M POT.2 ) with immobilized titanium dioxide (10 g/ M POT.2 ) was operated in different flow rates (15; 22.5 and 30 L/h) and angles in relation to horizontal (2, 12
Publicado em: 2005