Plug Flow Reactor
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. KINETIC MODELING AND EXPERIMENTAL VALIDATION OF A PHOTOCATALYTIC FLUIDIZED BED REACTOR FOR n-HEXANE DEGRADATION
Abstract This work presents a modeling procedure for a tall photocatalytic fluidized bed photoreactor used for the photocatalytic oxidation of n-hexane on the anatase TiO2 surface. The modeling strategy split the reactor into two parts: a lower dense phase, with high solids concentration behaving as a bubbling bed treated as a continuous stirred tank reactor
Braz. J. Chem. Eng.. Publicado em: 13/01/2020
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2. SIMULAÇÃO DE COMBUSTÃO DO POLIBUTADIENO LÍQUIDO HIDROXILADO, PERCLORATO DE AMÔNIO E ALUMÍNIO EM FORMULAÇÕES DE PROPELENTE SÓLIDO COMPÓSITO
The present work presents combustion simulations of hydroxyl-terminated liquid polybutadiene loaded with ammonium perchlorate and aluminum, using Chemkin software and the “Plug Flow” type reactor. These materials are widely used in solid composite propellant formulations. Through this study, the effect of parameters of axial velocity, equivalence ratio,
Quím. Nova. Publicado em: 2019-02
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3. IMPACT OF THE HYDRAULIC LOADING RATE ON THE HYDRODYNAMIC CHARACTERISTICS OF AN ANAEROBIC FIXED BED REACTOR TREATING CATTLE SLAUGHTERHOUSE WASTEWATER
ABSTRACT The hydrodynamic behavior of an anaerobic fixed bed reactor (AFBR) was evaluated in the treatment of cattle slaughterhouse wastewater. The AFBR was operated at hydraulic retention time (HRT) of 14, 11 and 8 h. Stimulus-response assays were carried out with Eosin Y and the experimental data were adjusted to the single-parameter theoretical models of
Eng. Agríc.. Publicado em: 2018-06
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4. Continuous Synthesis of a Green Fuel Additive Mixture with Highest Quantities of Solketalacetin and Solketal and Lowest Amount of Diacetin from Biodiesel-Derived Glycerol
This work presents a continuous, easy-to-scale-up system for glycerol conversion to a valuable fuel additive mixture such as solketalacetin ((2,2-dimethyl-1,3-dioxolan-4-yl)methyl acetate), solketal and minimum amount of diacetin with no byproducts. A two-stage reaction was conducted to synthesize the mixture. At first, glycerol was reacted with acetic acid
J. Braz. Chem. Soc.. Publicado em: 2018-06
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5. Ethanolic Biodiesel Production: A Comparative Study between a Plug Flow Reactor and Reactive Distillation
Abstract The interest in biodiesel as an alternative source of energy has been extremely intensified by its use as a renewable and economically viable fuel. As a result, continuous production processes have been a requirement to supply growing demand. This work presents experimental and simulated results of two biodiesel production pilot plants and makes a c
Braz. J. Chem. Eng.. Publicado em: 2017-07
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6. CONTINUOUS AND SEMICONTINUOUS REACTION SYSTEMS FOR HIGH-SOLIDS ENZYMATIC HYDROLYSIS OF LIGNOCELLULOSICS
Abstract An attractive operation strategy for the enzymatic hydrolysis of lignocellulosics results from dividing the process into three stages with complementary goals: continuous enzyme adsorption at low-solids loading (5% w/w) with recycling of the liquid phase; continuous liquefaction at high-solids content (up to 20% w/w); and, finally, continuous or sem
Braz. J. Chem. Eng.. Publicado em: 2015-12
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7. Comportamento hidrodinâmico e cinético dos reatores anaeróbios compartimentado (RAC) e manta de lodo (UASB) operados em série / The hydrodynamic and kinetic bahavior of the anaerobic baffled reactor (ABR) and upflow anaerobic Sludge blanket (UASB) operated in serie
The aim of this research was to determine the hidrodymanic and kinetics behavior of a pilot system plant, treating swine liquid effluent, installed in the Zootechnical Department of the Federal University of Lavras. The pilot system was composed by several units working in series, such as sand retention box (SRB), static sieve (SS), acidification and equaliz
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
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8. Modelagem e simulação de um reator catalítico de membrana inerte permseletiva a hidrogênio com transferência de calor e massa / Modeling and simulation of a catalytic reactor with a permselective to hydrogen inert membrane with heat and mass transfer
Dentre os termoplásticos mais utilizados atualmente na indústria, pode-se mencionar o estireno, principal responsável pela produção de plásticos e borrachas. No processo de fabricação de estireno, a principal rota química é por meio da desidrogenação de etilbenzeno, com o hidrogênio como subproduto. A conversão de etilbenzeno nesta reação é
Publicado em: 2011
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9. Modeling electrodialysis and a photochemical process for their integration in saline wastewater treatment
Oxidation processes can be used to treat industrial wastewater containing non-biodegradable organic compounds. However, the presence of dissolved salts may inhibit or retard the treatment process. In this study, wastewater desalination by electrodialysis (ED) associated with an advanced oxidation process (photo-Fenton) was applied to an aqueous NaCl solution
Brazilian Journal of Chemical Engineering. Publicado em: 2010-09
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10. Integração dos processos de eletrodiálise e de degradação fotoquímica para o tratamento de efluentes salinos contendo fenol. / Integration of electrodialysis and photochemical degradation process for the treatment of a saline wastewater containing phenol.
Chemical oxidation processes can be used to treat industrial wastewater containing non-biodegradable organic compounds. However, the presence of dissolved salts may inhibit or retard the treatment process. In this work, a coupled process is studied including a desalination step by electrodialysis (ED) associated with an advanced oxidation process (photo-Fent
Publicado em: 2009
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11. A comparative kinetic study of SNCR process using ammonia
The paper presents comparative kinetic modelling of nitrogen oxides (NOx) removal from flue gases by selective non-catalytic reduction process using ammonia as reducing agent. The computer code SENKIN is used in this study with the three published chemical kinetic mechanisms; Zanoelo, Kilpinen and Skreiberg. Kinetic modeling was performed for an isothermal p
Brazilian Journal of Chemical Engineering. Publicado em: 2008-03
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12. Desenvolvimento de software e analise de reatores de polimerização de eteno em solução / Software developing and analysis of ethene polymerization reactors
Os processos de polimerização são de grande importância, pois através destes, são produzidos uma grande diversidade de produtos de utilidade no mercado mundial, entre os quais plásticos, borrachas, tintas, etc. A simulação, a análise e o controle adequado dos processos são fundamentais para a operação e o desenvolvimento seguro de uma planta, ga
Publicado em: 2008