Zobrazeno 1 - 10 of 48 pro vyhledávání: '"Viviana M. T. M. Silva"'
1
1,2-dihydroxyxanthone: Effect on A375-C5 melanoma cell growth associated with interference with THP-1 human macrophage activity
Autor: Rui Medeiros, Viviana M. T. M. Silva, Fátima Cerqueira, Madalena Pinto, Nair Nazareth, Emília Sousa, Amélia Sarmento
Publikováno v: Pharmaceuticals, Vol 12, Iss 2, p 85 (2019)
Pharmaceuticals
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Xanthones have been suggested as prospective candidates for cancer treatment. 1,2-dihydroxyxanthone (1,2-DHX) is known to interfere with the growth of several cancer cell lines. We investigated the effects of 1,2-DHX on the growth of the A375-C5 mela
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97d993717212969fe77e45652f729a35
https://hdl.handle.net/10216/136256
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2
Coupled PermSMBR – Process design and development for 1,1-dibutoxyethane production
Autor: Alírio E. Rodrigues, Viviana M. T. M. Silva, Carla Pereira
Publikováno v: Chemical Engineering Research and Design
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
In this work, a new configuration of the simulated moving bed membrane reactor (PermSMBR) technology is presented, the coupled PermSMBR, where the tubular membranes are located after fixed-bed columns packed with the catalyst/adsorbent. By this way t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::554314342dda4d6a9627dbfe401e4fe9
https://doi.org/10.1016/j.cherd.2013.11.015
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3
Glycerol valorisation as biofuels: Selection of a suitable solvent for an innovative process for the synthesis of GEA
Autor: Rui P. V. Faria, José M. Loureiro, Viviana M. T. M. Silva, Alírio E. Rodrigues, Carla Pereira
Publikováno v: Chemical Engineering Journal
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The study of the production of glycerol ethyl acetal, through the acetalization of glycerol with acetaldehyde in a simulated moving bed reactor requires the selection of a suitable solvent/desorbent for the process. The methodology described in this
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6184b3b8701aa3f12004c7512bbe6e9f
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4
Kinetic study for the direct synthesis of dimethyl carbonate from methanol and CO2 over CeO2 at high pressure conditions
Autor: C.S.M. Pereira, José M. Loureiro, Bruno Santos, Alírio E. Rodrigues, Viviana M. T. M. Silva
Publikováno v: Applied Catalysis A: General. 455:219-226
The kinetics for the direct synthesis of dimethyl carbonate was studied over CeO 2 at high pressure conditions in a batch reactor. Langmuir–Hinshelwood and Eley–Rideal mechanisms were proposed and compared by the performance of the respective rea
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e3bf06d64af5e7d4ecf3f0e67d9d40e
https://doi.org/10.1016/j.apcata.2013.02.003
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5
Glycerol Valorization as Biofuel: Thermodynamic and Kinetic Study of the Acetalization of Glycerol with Acetaldehyde
Autor: Alírio E. Rodrigues, Rui P. V. Faria, José M. Loureiro, Carla Pereira, Viviana M. T. M. Silva
Publikováno v: Industrial & Engineering Chemistry Research
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The work reported in this article is a thermodynamic and kinetic study of the acetalization reaction between acetaldehyde and glycerol to produce glycerol ethyl acetal (GEA). A catalyst screening was performed allowing for the choice of Amberlyst-15
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84fe7a03a425ce7724cbd210f2207d2f
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6
Thermal Effects on the Synthesis of 1,1-Dibutoxyethane in a Fixed-Bed Adsorptive Reactor
Autor: Alírio E. Rodrigues, Viviana M. T. M. Silva, Luís S. Pais, Nuno S. Graça
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The effects of temperature on the synthesis of 1,1-dibutoxyethane (DBE) in a fixed-bed adsorptive reactor were studied by performing both adsorption/desorption and reaction/regeneration experiments at 15 and 35 °C. The Langmuir-type isotherm paramet
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc63d5faa249a6e026b3b7fd6284561e
https://doi.org/10.1002/ceat.201100705
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7
Thermal effects on the synthesis of acetals in a simulated moving bed adsorptive reactor
Autor: Nuno S. Graça, Alírio E. Rodrigues, Viviana M. T. M. Silva, Luís S. Pais
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The effect of temperature on simulated moving bed adsorptive reactor performance was studied by simulation with both isothermal and non-isothermal mathematical models. Simulated results with isothermal mathematical model showed an improvement of SMBR
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b02925f282a5e412f68a8593abd45679
https://doi.org/10.1016/j.cej.2012.06.160
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8
Experimental and Theoretical Study of Chemical Equilibria in the Reactive Systems of Acetals Synthesis
Autor: Jürgen Gmehling, Carla Pereira, Vladimir N. Emel’yanenko, Viviana M. T. M. Silva, Alírio E. Rodrigues, Inna V. Garist, Sergey P. Verevkin
Publikováno v: Industrial & Engineering Chemistry Research. 51:12723-12729
The chemical equilibria of acetals of acetaldehyde reactive systems (with methanol, ethanol, and n-butanol to form 1,1-dimethoxyethane, 1,1-diethoxyethane, and 1,1-dibuthoxyethane, respectively) were studied in the temperature range (293–333 K) in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26883e829b64b764bb012d45adfd3a1f
https://doi.org/10.1021/ie301484y
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9
Green Fuel Production Using the PermSMBR Technology
Autor: Viviana M. T. M. Silva, Carla Pereira, Alírio E. Rodrigues
Publikováno v: Industrial & Engineering Chemistry Research
The production of the green fuel acetaldehyde dibutylacetal (1,1-dibutoxyethane, DBE) was implemented by means of a new hybrid technology, the Simulated Moving Bed Membrane Reactor (PermSMBR), which consists in a Simulated Moving Bed Reactor (SMBR) i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd8c4e9b439604e75c5aac53531421fa
https://doi.org/10.1021/ie201951d
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10
Dynamic Study of the Synthesis of 1,1-Dibutoxyethane in a Fixed-Bed Adsorptive Reactor
Autor: Alírio E. Rodrigues, Viviana M. T. M. Silva, Nuno S. Graça, Luís S. Pais
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The synthesis of 1,1-Dibutoxyethane in a fixed-bed adsorptive reactor using Amberlyst 15 was studied for the first time. The adsorption of non-reactive pairs was investigated experimentally, at 25 °C, by frontal chromatography in a fixed-bed adsorbe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9aa5ec227eb1a37f6913bb707231f242
https://doi.org/10.1080/01496395.2010.534121
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