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Browsing by Author "Martinez Feliu, Agustin"

Now showing items 1-20 of 23

A simple an efficient approach to confine Cu/ZnO methanol synthesis catalysts in the ordered mesoporous SBA-15 silica

García Trenco, Andrés; Martinez Feliu, Agustin (Elsevier, 2013-10-15)

The ammonia-driving deposition-precipitation (ADP) method has been applied with the purpose of confining active Cu/ZnO methanol synthesis phases inside the pores of the ordered mesoporous SBA-15 silica. Thus, a series of ...
Dehydroaromatization of methane under non-oxidative conditions over bifunctional Mo/ITQ-2 catalysts

Martinez Feliu, Agustin; Peris Chanzá, Ernesto José; Sastre Navarro, German Ignacio (Elsevier, 2005-10-30)

[EN] Bifunctional Mo/ITQ-2 catalysts have been used for the methane dehydroaromatization (MDA) reaction. The Si/Al ratio, and thus the Brønsted acidity, of the zeolite affected the conversion, the formation rate of ...
Desarrollo de catalizadores híbridos CuZnOAl2O3/zeolita para el proceso de síntesis directa de DME

García Trenco, Andrés (2014-01-07)

El plan de investigación se centra en el estudio y diseño de catalizadores híbridos para el proceso de síntesis directa de dimetil éter (DME) a partir de gas de síntesis, también conocido en la literatura como "Syngas-To-DME ...
Desarrollo de catalizadores para la mejora del índice de cetano en fracciones diesel de baja calidad mediante apertura selectiva de anillos nafténicos

Faubel Vidagany, Joan Miquel (2016-10-07)

[ES] Uno de los principales problemas a los que se enfrentan las compañías de refino en la UE es la necesidad de aumentar la capacidad de producción de combustible diesel con el fin satisfacer la creciente demanda de este ...
Direct conversion of methane to aromatics in a catalytic co-ionic membrane reactor

Hernández Morejudo, Selene; Zanón González, Raquel; Escolástico Rozalén, Sonia; Yuste Tirados, I.; Malerod Fjeld, Harald; Vestre, P. K.; Coors, W. G.; Martinez Feliu, Agustin; Norby, T.; Serra Alfaro, José Manuel; Kjolseth, C. (American Association for the Advancement of Science, 2016-08-05)

[EN] Nonoxidative methane dehydroaromatization (MDA: 6CH(4) <-> C6H6 + 9H(2)) using shape-selective Mo/zeolite catalysts is a key technology for exploitation of stranded natural gas reserves by direct conversion into ...
Direct synthesis of DME from syngas on hybrid CuZnAl/ZSM-5 catalysts: New insights into the role of zeolite acidity

García Trenco, Andrés; Martinez Feliu, Agustin (Elsevier, 2012)

[EN] A commercial HZSM-5 zeolite (Si/Al = 16) was submitted to mild acid treatment and partial exchange of H+ by Na+ and Co2+ cations in order to produce samples with different amounts and strengths of Brensted and Lewis ...
Estudio de catalizadores microporosos Mo/zeolita en la reacción de deshidroaromatización de metano

Peris Chanzá, Ernesto José (2016-01-07)

[EN] This doctoral thesis shows the study carried out on Mo/zeolite catalysts in the dehydroaromatization reaction of methane (MDA) with the intention to contribute to this technical approximation regarding the valorisation ...
Estudio de la acidez en catalizadores bifuncionales para la síntesis directa de DME

García Trenco, Andrés (2012-01-25)

Catalizadores bifuncionales basados en Cu/Zn/Al203 y la zeolita HZSM-5 fueron evaluados en el proceso de síntesis directa de DME a partir de gas de síntesis (STD) con el fin de determinar la influencia del número, fortaleza ...
Improvement of catalyst stability during methane dehydroaromatization (MDA) on Mo/HZSM-5 comprising intracrystalline mesopores

Martinez Feliu, Agustin; Peris, E.; Derewinski, M.; Burkat-Dulak, A. (Elsevier, 2011-07)

[EN] Anew Mo/HZSM-5catalyst (3 wt% Mo, Si/Al = 26) comprising a carbon-templated zeolite having intracrystalline mesopores sizing ca. 10-20nm (HZSM-5-BP) has been prepared. For comparison purposes, an equivalent catalyst ...
Materiales mesoporosos y zeolitas deslaminadas como soportes para catalizadores de Fischer-Tropsch basados en Cobalto.

López Cruz, Carlos (2019-11-25)

La síntesis de Fischer-Tropsch (SFT) es en la actualidad, la ruta más eficiente para la producción de hidrocarburos a partir de gas natural, metano o carbón. El principal interés de la SFT, es la obtención de combustible ...
Modulation of zeolite acidity by post-synthesis treatments in Mo/HZSM-5 catalysts for methane dehydroaromatization

Martinez Feliu, Agustin; Peris Chanzá, Ernesto José; Vidal Moya, José Alejandro (Elsevier, 2008)

The acid properties of HZSM-5 were modulated by treatment with acids (oxalic, citric, nitric), (NH(4))(2)SiF(6), steaming, steaming+acid, and partial exchange with Cs(+). Then, catalysts containing 3wt% Mo were prepared ...
n-Hexadecane hydrocracking Single-Event MicroKinetics on Pt/H-beta

Vandegehuchte, Bart D.; Thybaut, Joris W.; Martinez Feliu, Agustin; Arribas Viana, Maria de los Desamparados; Marin, Guy B. (Elsevier, 2012)

[EN] The Single-Event MicroKinetic (SEMK) model constructed for gas-phase hydroconversion of light n-alkanes on large-pore USY zeolites was applied, for the first time, to the hydrocracking of n-hexadecane on a Pt/H-Beta ...
New bifunctional Ni H-Beta catalysts for the heterogeneous oligomerization of ethylene

Martinez Feliu, Agustin; Arribas Viana, Maria de los Desamparados; Concepción Heydorn, Patricia; Moussa-Martí, Sara (Elsevier, 2013)

[EN] The development of sustainable active and stable heterogeneous catalysts for the oligomerization of ethylene to replace the unfriendly homogenous systems based on transition metal complexes currently applied in the ...
New insights into the role of the electronic properties of oxide promoters in Rh-catalyzed selective synthesis of oxygenates from synthesis gas.

Prieto González, Gonzalo; Concepción Heydorn, Patricia; Martinez Feliu, Agustin; Mendoza, Ernest (Elsevier, 2011-06-13)

[EN] A series of 2.5% Rh/M@Al2O3 model catalysts were prepared by supporting Rh on high-area gamma-Al2O3, resulting in a surface covered by a monolayer (4.5-7 atoms/nm(2)) of MO promoter oxides (M = Fe, V. Nb, Ta, Ti, Y, ...
Oligomerización de Etileno sobre catalizadores heterogéneos Ni-BETA. Estudio cinético preliminar

Moussa Martí, Sara (2013-06-17)

[ES] En este trabajo se muestra el catalizador NI-Beta como activo y estable en la ollgomerización heterogénea de etileno. No todas las especies de Ni ocupando posiciones de intercambio resultaron Igualmente activas. Se ...
Requerimientos físico-químicos y estructurales en catalizadores avanzados para la conversión de gas de síntesis

Prieto González, Gonzalo (2010-02-03)

La presente tesis doctoral emplea herramientas de síntesis y caracterización de catalizadores metálicos nanoparticulados modelo, con el objetivo de elucidar la influencia de varias características estructurales y físico-químicas ...
Structural, promotion and metal-support interaction effects in Co/TiO2 catalysts for Fischer-Tropsch synthesis

Bertella, Francine (2018-09-10)

La presente tesis doctoral está centrada en la investigación de los parámetros estructurales que determinan las propiedades catalíticas en la síntesis de Fischer-Tropsch (SFT) de catalizadores de cobalto soportados en TiO2. ...
Study of the interaction between components in hybrid CuZnAl/HZSM-5 catalysts and its impact in the syngas-to-DME reaction

García Trenco, Andrés; Vidal Moya, José Alejandro; Martinez Feliu, Agustin (Elsevier, 2012-01-05)

[EN] Hybrid CuZnAl(CZA)/HZSM-5 catalysts were prepared by three mixing methods in order to analyze the possible existence of interactions between components and their impact in the STD process, namely: (a) grinding of ...
The impact of pre-reduction thermal history on the metal surface topology and site-catalytic activity of Co=SiO2 Fischer Tropsch catalysts

Prieto González, Gonzalo; Concepción Heydorn, Patricia; Murciano Martínez, Raúl; Martinez Feliu, Agustin (Elsevier, 2013-06)

[EN] For ex-nitrate Co/SiO2 Fischer Tropsch synthesis (FTS) catalysts, the influence of the early thermal treatments during catalyst synthesis on the ultimate catalytic properties is studied without overlapping of particle ...
The impact of support surface area on the SMSI decoration effect and catalytic performance for Fischer-Tropsch synthesis of Co-Ru/TiO2-anatase catalysts

Bertella, Francine; Concepción Heydorn, Patricia; Martinez Feliu, Agustin (Elsevier, 2017)

[EN] A series of Co-Ru/TiO2 catalysts (10 wt% Co, 0.5 wt% Ru, nominal loadings) were prepared by impregnation of TiO2-anatase supports synthesized with different specific surface areas (Ti-L: 53 m2 /g, Ti-M: 117 m2 /g, and ...