Listar UTN- FRC -Producción Académica de Investigación y Desarrollo por autor "Martínez, María Laura"

Mostrando ítems 1-20 de 33

  • Catalytic oxidation of sulfur compounds over Ce-SBA-15 and Ce-Zr-SBA-15 

    Rivoira, Lorena Paola; Vallés, Verónica Alejandra; Martínez, María Laura; Yanika, Sa-ngasaeng; Siriporn, Jongpatiwut (2021)
    The catalytic oXidation of different sulfur compounds, commonly present in liquid fuel, was studied over a series of ceria and ceria-zirconium based oXidation mesoporous catalysts. SBA-15 was synthesized using sol-gel ...

  • Desulfuración oxidativa utilizando material mesoporoso Ti-SBA-16 

    Rivoira, Lorena Paola; Vallés, Verónica; Ledesma, Brenda; Martínez, María Laura; Anunziata, Oscar Alfredo; Beltramone, Andrea Raquel (2014)
    La oxidación de compuestos organosulfurados conduce a la formación de los sulfóxidos/sulfonas correspondientes, lo que permite que sean fácilmente removidos mediante extracción en solventes polares o por adsorción. El ...

  • Eliminación de azufre mediante desulfuración oxidativa con SBA-16 modificada con titanio 

    Rivoira, Lorena Paola; Vallés, Verónica; Ledesma, Brenda; Martínez, María Laura; Anunziata, Oscar Alfredo; Beltramone, Andrea Raquel (2014)
    La oxidación de compuestos organosulfurados conduce a la formación de los sulfóxidos/sulfonas correspondientes, los cuales son mucho más polares, lo que permite que sean fácilmente removidos mediante extracción en ...

  • Esterification of succinic acid using sulfated zirconia supported on SBA-15 

    Aguzin, Federico L.; Martínez, María Laura; Beltramone, Andrea Raquel; Padró, Cristina L.; Okulik, Nora (2021)
    Catalytic esterification of succinic acid with ethanol to obtain diethyl succinate (DES), a nontoxic plasticizer, is reported. Three sulfated zirconias supported on SBA-15 [SZ-SBA-15(X)] with Si/Zr molar ratios (X) of 10, ...

  • Estudio de la influencia de la temperatura de síntesis y la concentración de surfactante en la síntesis de SBA-3 

    Ponte, María Virginia; Martínez, María Laura; Gómez Costa, Marcos Bruno; Anunziata, Oscar Alfredo; Beltramone, Andrea Raquel (2014)
    En este trabajo se presentan resultados de preparación y caracterización de SBA-3, estudiando la variación de la temperatura de síntesis, así como la de la relación molar CTAB/TEOS. Condiciones de síntesis suaves (303 ...

  • EXperimental design optimization of the ODS of DBT using vanadium oXide supported on mesoporous Ga-SBA-15 

    Rivoira, Lorena Paola; Cussa, Jorgelina; Martínez, María Laura; Beltramone, Andrea Raquel (2020)
    EXperiment design-response surface methodology is applied in this work to model and optimize the o Xidation of dibenzothiophene (DBT) using VOX-Ga-SBA-15 catalyst. The analyzed variables are the influence of the nature of ...

  • HDT of the model diesel feed over Ir-modified Zr-SBA-15 catalysts 

    Vallés, Verónica Alejandra; Yanika, Sa-ngasaeng; Martínez, María Laura; Siriporn, Jongpatiwut; Beltramone, Andrea Raquel (2018)
    Iridium catalyst using different zirconium modified-SBA-15 supports were tested in the HDT of tetralin and typical sulfur and nitrogen compounds present in diesel feed. The zirconium modified-SBA-15 supports were synthesized ...

  • Hidrogenación de tetralin utilizando un catalizador bifuncional de iridio/platino-SBA-15 

    Vallés, Verónica; Ledesma, Brenda; Rivoira, Lorena Paola; Cussa, Jorgelina; Martínez, María Laura; Anunziata, Oscar Alfredo; Beltramone, Andrea Raquel (2014)
    Los catalizadores bimetálicos de Pt–Pd han recibido considerable atención debido a que demuestran tener una alta actividad en una amplia variedad de aplicaciones catalíticas (1). Con alta actividad, selectividad ...

  • Hydrodenitrogenation of indol using iridium catalyst supported on titanium nanotubes 

    Ledesma, Brenda Cecilia; Martínez, María Laura; Gómez Costa, Marcos Bruno; Beltramone, Andrea Raquel (2022)
    The HDN of indole was studied over iridium modified titanate nanotube catalyst. Titaniun nanotube was prepared by the alkaline hydrothermal method. Iridium was added by wetness impregnation. The activity was compared ...

  • Hydrodeoxygenation of guaiacol over pt/ga-mesoporous catalysts 

    Beltramone, Andrea R.; Martínez, María Laura; Rivoira, Lorena (2020)
    La hidrodesoxigenación (HDO) de guayacol, utilizado como molécula modelo, ha sido estudiada en un reactor batch sobre catalizadores de platino soportado sobre SBA-15 a 12 atm de presión y diferentes temperaturas, utilizando ...

  • Hydrogenation of tetralin over Ir catalysts supported on titania-modified SBA-16 

    Ledesma, Brenda; Vallés, Verónica; Rivoira, Lorena Paola; Martínez, María Laura; Anunziata, Oscar Alfredo; Beltramone, Andrea Raquel (2014)
    Abstract A series of Ti modified SBA-16 supports and their respective Ir-catalysts were prepared and character- ized to study the effect of support preparation method on the dispersion of iridium and on the characteristics ...

  • Hydrogenation of tetralin over Ir-containing mesoporous catalysts 

    Vallés, Verónica; Balangero, Gerardo Simón; Martínez, María Laura; Gómez Costa, Marcos Bruno; Anunziata, Oscar Alfredo; Beltramone, Andrea Raquel (2012)
    The yield in fluid catalytic cracking (FCC) depends on the extent of aromatic hydrogenation in the gas oil hydrotreater. To optimize the gas oil hydrotreater, it is crucial to understand the aromatic hydrogenation reaction ...

  • Indole HDN using iridium nanoparticles supported on titanium nanotubes 

    Ledesma, Brenda Cecilia; Martínez, María Laura; Gómez Costa, Marcos Bruno; Beltramone, Andrea Raquel (2022)
    The HDN of indole was studied over iridium modified titanate nanotube catalyst. Titanium nanotube was prepared by the alkaline hydrothermal method. Iridium was added by wetness impregnation. The activity was compared with ...

  • Influencia del proceso de síntesis de materiales mesoporosos ácidos en la obtención de HMF a partir de fructosa 

    Beltramone, Andrea R.; Mayer, Sergio; Falcón, Horacio; Ribotta, Pablo; Pérez, Susana; Campos Martin, José Miguel; Garcia Fierro, josé Luis; Martínez, María Laura (2019)
    Motivados por el agotamiento irreversible de los recursos fósiles, en la actualidad se realizan esfuer-zos en obtener moléculas orgánicas de valor agregado a partir de biomasa. El 5-hidroximetilfurfural (HMF) es, junto al ...

  • Influencia del proceso de síntesis de materiales mesoporosos ácidos en la obtención de hmf a partir de fructosa 

    Mayer, Sergio; Falcon, Horacio; Ribotta, Pablo; Perez, Susana; Campos Martin, Jose Miguel; Garcia Fierro, Jose Luis; Martínez, María Laura; Beltramone, Andrea R. (2020)
    Motivados por el agotamiento irreversible de los recursos fósiles, en la actualidad se realizan esfuer-zos en obtener moléculas orgánicas de valor agregado a partir de biomasa. El 5-hidroximetilfurfural (HMF) es, junto al ...

  • Inhibition of the hydrogenation of tetralin by nitrogen and sulfur compounds over Ir/SBA-16 

    Balangero, Gerardo Simón; Martínez, María Laura; Gómez Costa, Marcos Bruno; Anunziata, Oscar Alfredo; Beltramone, Andrea Raquel (2011)
    In this work we study the catalytic properties of 5 wt.% Ir-containing SBA-16 catalysts (with and without aluminum as heteroatom), in the hydrogenation of tetralin to decalin, in the presence of 100 ppm of N as quinoline, ...

  • Iridium-supported SBA-15 modified with Ga and Al as a highly active catalyst in the hydrodenitrogenation of quinoline 

    Ledesma, Brenda Cecilia; Martínez, María Laura; Beltramone, Andrea Raquel (2020)
    Ir-supported SBA-15 was studied in the hydrodenitrogenation (HDN) of quinoline as a model nitrogen com- pound. The activity was improved when Si-SBA-15 support was modified with Ga and Al. Characterization of the catalysts ...

  • Iron-modified mesoporous materials as catalysts for ODS of sulfur compounds 

    Rivoira, Lorena Paola; Juárez, Juliana María; Martínez, María Laura; Beltramone, Andrea Raquel (2020)
    Fe-modified mesoporous catalysts were used in the ODS of DBTs using H2O2 as oXidant and acetonitrile as solvent. SBA-15, MCM-48, CMK-3 and CMK-1 were used as supports. Iron was incorporated using iron nitrate by wetness ...

  • Mesopore carbón starch with acid properties: synthesis and characterization 

    Martínez, María Laura; Anunziata, Oscar A. (2020)
    We have shown that a promising material with acidic properties can be successfully prepared from starch mesoporous carbon (SMC), functionalized with sulfated zirconia. The process of assembling P123, starch, zirconia, and ...

  • Multiple-wall carbon nanotubes obtained with mesoporous material decorated with ceria-zirconia 

    Rodríguez, Miguel Angel; Anunziata, Oscar Alfredo; Beltramone, Andrea Raquel; Martínez, María Laura (2020)
    In this work, Ceria-Zirconia on ordered Santa Barbara mesoporous silica (Ce-Zr-SBA-15), has been used directly as a catalyst for the synthesis of carbon nanotubes (CNTs) through Chemical Vapor Deposition (CVD). In addition ...