Slurry Reactor
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Carbon Nanotube-Supported Copper-Cobalt Catalyst for the Production of Higher Carbon Number Alcohols through Carbon Monoxide Hydrogenation
A series of carbon nanotube (CNTs)-supported copper-cobalt catalysts were prepared and investigated in a slurry reactor for their ability to selectively convert syngas into higher carbon number alcohols. The 7.5Cu7.5Co/CNTs catalyst achieved superior selectivity towards the formation of ethanol (30.1%) and C2+ alcohols (57.7%), while the 10Co5Cu/CNTs catalys
J. Braz. Chem. Soc.. Publicado em: 2018-07
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2. Odor from anaerobic digestion of swine slurry: influence of pH, temperature and organic loading
Farm slurry management from storage and/or treatment is the main source of odors from swine production, which are determined by factors such as operational variations (organic loading), cleaning of facilities and animal diet (pH) or environmental conditions (temperature). The aim of this study was to evaluate the influence of pH, temperature and organic load
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-12
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3. Wet oxidation of glycerol into fine organic acids: catalyst selection and kinetic evaluation
The liquid phase oxidation of glycerol was performed producing fine organic acids. Catalysts based on Pt, Pd and Bi supported on activated carbon were employed to perform the conversion of glycerol into organic acids at 313 K, 323 K and 333 K, under atmospheric pressure (1.0 bar), in a mechanically agitated slurry reactor (MASR). The experimental results ind
Braz. J. Chem. Eng.. Publicado em: 2014-12
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4. Ex-situ bioremediation of Brazilian soil contaminated with plasticizers process wastes
The aim of this research was to evaluate the bioremediation of a soil contaminated with wastes from a plasticizers industry, located in São Paulo, Brazil. A 100-kg soil sample containing alcohols, adipates and phthalates was treated in an aerobic slurry-phase reactor using indigenous and acclimated microorganisms from the sludge of a wastewater treatment pl
Brazilian Journal of Chemical Engineering. Publicado em: 2012-03
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5. Effect of K promoter on the structure and catalytic behavior of supported iron-based catalysts in fischer-tropsch synthesis
Effects of K addition on the performance of supported Fe catalysts for Fischer - Tropsch synthesis (FTS) were studied in a slurry reactor at 240 to 270ºC, 2.0 to 4.0 MPa and syngas H2/CO = 1.0. The catalysts were characterized by N2 adsorption, H2 temperature programmed reduction, X - ray diffraction, X - ray fluorescence, thermogravimetric analysis, scanni
Brazilian Journal of Chemical Engineering. Publicado em: 2011-09
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6. Oxidação úmida de fenóis com catalisadores de ferro suportado em argilominerais em reator de leito de lama (slurry) / Phenol Wet oxidation on catalyst supported in clay minerals using a reactor with mechanical agitation (slurry)
A oxidação úmida de compostos orgânicos a CO2 e H2O tem demonstrado ser uma técnica interessante no tratamento de efluentes. Este trabalho tem como objetivo a síntese e caracterização dos catalisadores Fe-MnO2/CeO2, K-MnO2/CeO2/paligorsquita e Fe/paligorsquita, assim como, a avaliação na degradação oxidativa do fenol. Os experimentos foram realiz
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/10/2010
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7. Implementação de um modelo computacional para estudo do processo Fischer-Tropsch em reator de leito de lama
O presente trabalho tem como objetivo a implementação e adaptação de um modelo computacional de equilíbrio de fases visando o estudo do processo Fischer- Tropsch em reator leito de lama a partir de gás de síntese (CO + H2) para a produção seletiva de hidrocarbonetos (CnHm), com ênfase na avaliação da influência das condições operacionais sobre
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/09/2010
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8. Efeito da VariaÃÃo de LÃtio em Catalisadores de Ferro tendo PotÃssio e Cobre como Promotores para a SÃntese Fischer-Tropsch / EFFECT OF LITHIUM IN IRON BASED CATALYST FOR FISCHER-TROPSCH SYNTHESIS CONTAINING POTASSIUM AND COPPER AS PROMOTERS
New environmental regulations and a possible instability in the international oil market have led to a renewal interest in the Fischer-Tropsch Synthesis (FTS), which is an alternative to produce more environmental friendly fuels. The FTS is a polymerization reaction, in which syngas (H2 + CO) reacts in the presence of catalyst to produce hydrocarbons. Three
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2010
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9. Liquid phase hydrogenation of acethydrazone to N'-methyl acethydrazide over Pd/γ-Al2O3 catalyst
Catalytic hydrogenation of acethydrazide (AH) is the main step in the production of N'-methyl acethydrazide (MAH). In this step, AH reacts with formaldehyde to produce acetylhydrazone (AOH). AOH is hydrogenated in the presence of 5% Pd/γ-Al2O3 catalyst to MAH. In this paper, the effects of hydrogen pressure, catalyst loading and initial concentration of AOH
Brazilian Journal of Chemical Engineering. Publicado em: 2010-03
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10. Total catalytic wet oxidation of phenol and its chlorinated derivates with MnO2/CeO2 catalyst in a slurry
In the present work, a synthetic effluent of phenol was treated by means of a total oxidation process-Catalyzed Wet Oxidation (CWO). A mixed oxide of Mn-Ce (7:3), the catalyst, was synthesized by co-precipitation from an aqueous solution of MnCl2 and CeCl3 in a basic medium. The mixed oxide, MnO2/CeO2, was characterized and used in the oxidation of phenol in
Brazilian Journal of Chemical Engineering. Publicado em: 2009-09
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11. Influence of the treatment applied to the support on the performance of RU/C catalysts for the partial hydrogenation of benzene in liquid phase / Influencia do tratamento aplicado ao suporte sobre o desempenho de catalisadores de RU/C para a hidrogenação parcial do benzeno em fase liquida
The partial hydrogenation of benzene is a chemical reaction of industrial interest, as the cyclohexene obtained may be used to production of several products. Moreover, it also finds important application in the ambient protection, face to the severe restrictions to the aromatical composite presence in fuels. The aim of the present work is to study the influ
Publicado em: 2009
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12. Nonlinear predictive control of an industrial slurry reactor
Uma estratégia de controle preditivo não linear é aplicada a um reator tanque agitado de polimerização em lama para a produção de polietileno de alta densidade. O desempenho do controle é analisado no sentido de se obter o peso molecular médio numérico, composição de comonômero e temperatura desejados. Um modelo fenomenológico completo consider
Sba: Controle & Automação Sociedade Brasileira de Automatica. Publicado em: 2008-12