Radial Reactor
Mostrando 13-17 de 17 artigos, teses e dissertações.
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13. Modelagem matematica e simulação numerica de um sistema reacional composto por reatores tipo tanque agitado e tubular em processos de polimerização
The present work consists of a mathematical modeling and numerical simulation of a solution polymerization reaction, using as study case the polystyrene. The reaction system is composed by a continuous stirred tank reactor (CSTR) for prepolymerization, associated in series with a tubular reactor to carry out the reaction until high conversion values. A simpl
Publicado em: 2001
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14. Controle avançado de um reator quimico de leito fixo : aplicação para oxidação do etanol a acetaldeido
The use of fixed bed catalytic reactors in the chemical industry, and the necessity of controlling and optimizing these reactors, have motivated the studies of dynamic models and control techniques, such as the use of Feedback-Feedforward controllers, working simultaneously. In practice, several feedforward control systems are implemented using ratio control
Publicado em: 2001
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15. Reforma catalitica da nafta : modelagem, simulação e controle do processo
O processo de refonna catalítica da nafta, voltado para a produção de compostos aromáticos (benzeno, tolueno e xilenos), foi o tema abordado neste estudo. Considerou-se um típico processo semi-regenerativo, no qual existem quatro reatores radiais em série intercalados com quatro fornalhas que são utilizadas para aquecer as correntes que alimentam os r
Publicado em: 2000
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16. Contribuição a simulação computacional do processo de LPCVD
This work deals with the study and simulation of LPCVD-Low Pressure Chemical Vapour Deposition- a basic process for thin film deposition. The reaction of silicon deposition by silane pyrolisis is adopted for its simplicity and importance without sacrifieing the quality of treatment. To begin with, we present the atmospheric presure CVD technique in the light
Publicado em: 1990
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17. Ethanol Production by Saccharomyces cerevisiae Immobilized in Hollow-Fiber Membrane Bioreactors
Saccharomyces cerevisiae ATCC 4126 was grown within the macroporous matrix of asymmetric-walled polysulfone hollow-fiber membranes and on the exterior surfaces of isotropic-walled polypropylene hollow-fiber membranes. Nutrients were supplied and products were removed by single-pass perfusion of the fiber lumens. Growth of yeast cells within the macrovoids of