Operations Reactor
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Esterificação do ácido oleico utilizando aluminossilicato mesoporoso modificado com óxido de zircônio
RESUMO Os desafios decorrentes do aumento populacional, do uso extensivo e degradação dos recursos naturais e da dependência dos recursos fósseis, tem despertado o interesse pelo desenvolvimento de tecnologias para a produção de combustíveis renováveis. Dentro deste contexto tecnologias para a produção de biodiesel tem sido bastante estudadas de fo
Matéria (Rio J.). Publicado em: 20/05/2019
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2. Simultaneous removal of nitrogen and organic carbon from swine wastewater using the pre-denitrification/nitrification process
Resumo Os efluentes dos sistemas de produção de animais confinados (SPACs), se não tratados adequadamente antes do descarte, podem interferir significativamente no balanço natural do nitrogênio no meio ambiente. Nesse trabalho, um sistema Lutzak-Ettinger modificado (MLE), consistindo de dois reatores sequenciais, um pré-desnitrificante (RD) e um nitrif
Rev. Ambient. Água. Publicado em: 25/03/2019
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3. EVALUATING HYDROGEN PRODUCTION IN BIOGAS REFORMING IN A MEMBRANE REACTOR
Abstract Syngas and hydrogen production by methane reforming of a biogas (CH4/CO2 = 2.85) using carbon dioxide was evaluated in a fixed bed reactor with a Pd-Ag membrane in the presence of a nickel catalyst (Ni 3.31% weight)/γ-Al2O3) at 773 K, 823 K, and 873 K and 1.01×105 Pa. Operation with hydrogen permeation at 873 K increased the methane conversion to
Braz. J. Chem. Eng.. Publicado em: 2015-03
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4. Sistema ambiental aplicado á liberação de efluente radioativo líquido / ENVIRONMENTAL SYSTEM APPLIED TO RADIOACTIVE LIQUID EFFLUENT RELEASE
The current environmental administration considers the productive activity as an environmental system, defined as a group of processes, interactions, parameters and factors involved in the production. This mastering dissertation evaluated the release of the liquid radioactive effluents at Instituto de Pesquisas Energética e Nucleares (ipen), under a systemi
Publicado em: 2009
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5. Desempenho de reatores anaeróbios de leito fixo no tratamento de águas residuárias da lavagem e descascamento/despolpa dos frutos do cafeeiro / Performance of the anaerobic fixed-bed reactors in the treatment of wastewater from the washing and pulping/husking the cherries of the coffee shrub
Three anaerobic fixed-bed reactors with upflow and containing immobilized biomass were operationally evaluated for the treatment of wastewater from the coffee cherries processing (WCP). Because the performance of those reactors are related to the supportive medium providing adherence and growth to the biofilm, the following materials were studied: blast furn
Publicado em: 2007
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6. "Desenvolvimento de um Simulador de Treinamento para Operadores do Reator de Pesquisa IEA-R1" / DEVELOPMENT OF A TRAINING SIMULATOR TO OPERATORS OF THE IEA-R1 RESEARCH REACTOR
Este trabalho apresenta o desenvolvimento de um Simulador do Reator de Pesquisa IEAR1. O Simulador foi desenvolvido com Visual C++ em duas etapas: 1) construção dos modelos matemáticos e 2) criação e configuração de interfaces gráficas em um aplicativo Windows XP. Utilizou-se uma modelagem simplificada dos principais fenômenos físicos: o nuclear at
Publicado em: 2006
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7. "Pré-processador matemático para o código Relap5 utilizando o Microsoft Excel" / MATHEMATIC PREPROCESSOR FOR RELAP5 CODE USING MICROSOFT EXCEL
Computational program are used for thermal hydraulic analysis of accidents and transients conditions in nuclear power plants. The RELAP5 code has been developed to simulate accidents and transients conditions, performing a best estimate analysis, in Pressurized Water Reactors (PWR) and auxiliary systems. The RELAP5 code, which has been used as a tool for lic
Publicado em: 2006
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8. Desenvolvimento de reatores com saturaÃÃo natural para aplicaÃÃo em sistemas de potÃncia
In its core, this thesis is concerned with a new technique in naturally saturated reactors basic projects, as they are applied in power system networks. Such a technique faces each and every kind of reactors and, more than this, it offers the necessary tools to deal any innovation in this particular field of engineering. Therefore, generality is the main cha
Publicado em: 2004
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9. Lactose Variability of Escherichia coli in Thermally Stressed Reactor Effluent Waters
Lactose-utilizing and nalidixic acid-resistant populations of Escherichia coli, having an optimum growth temperature of 37°C, were placed in modified diffusion chambers. The chambers were submerged in the epilimnion and hypolimnion of a 1,100-hectare lake (Par Pond) which receives cooling water from a nuclear production reactor. Control chambers were placed
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10. Restrictions on permissible paths for changing efficiencies of operation of flow reactors*
Sometimes a continuous flow stirred tank reactor can exhibit two or more different states of chemical reaction for the same flow rate. If such a situation is possible, a state of low reactive efficiency can be converted to one of higher efficiency by first decreasing the flow rate and then increasing it to the original value. This transition can never be acc