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Browsing by Author "Martinez Feliu, Agustin"

Now showing items 1-20 of 32

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 ...
Conversion of aqueous ethanol/acetaldehyde mixtures into 1,3-butadiene over a mesostructured Ta-SBA-15 catalyst: Effect of reaction conditions and kinetic modelling

Cabello González, G.M.; Villanueva Perales, A.L.; MARTINEZ FELIU, AGUSTIN; Campoy, M.; Vidal-Barrero, F. (Elsevier, 2022-02)

[EN] This paper studies key issues for the design of industrial ethanol to 1,3-butadiene two-step processes, focusing on the second catalytic reaction step, for which a Ta-SBA-15 catalyst was chosen as a representative of ...
Copper surface-alloying of H-2-permeable Pd-based membrane for integration in Fischer-Tropsch synthesis reactors

Escorihuela-Roca, Sara; Toldrá-Reig, Fidel; Escolástico Rozalén, Sonia; Murciano Martínez, Raúl; MARTINEZ FELIU, AGUSTIN; Serra Alfaro, José Manuel (Elsevier, 2021-02-01)

[EN] Self-supported palladium tubular membranes are surface-functionalized and tested for the selective and controlled addition of H-2 along a fixed-bed catalytic reactor for Fischer-Tropsch hydrocarbon synthesis (FTS). ...
CuZnAl hydrotalcites as suitable precursors for chromium-free ester hydrogenolysis catalysts

Aubrecht, Jaroslav; Pospelova, Violetta; MARTINEZ FELIU, AGUSTIN; Concepción Heydorn, Patricia; Kikhtyanin, Oleg; Straka, Petr; Kubicka, David (Elsevier, 2022-08-25)

[EN] Ester hydrogenolysis is industrially performed over Adkins catalysts. Their use is being restricted as they contain environmentally unfriendly Cr2O3. As a potential replacement, five co-precipitated CuZnAl catalysts ...
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 bifuncionales basados en Ni disperso en aluminosilicatos porosos ácidos para la oligomerización heterogénea de etileno

Moussa Martí, Sara (Universitat Politècnica de València, 2020-09-02)

[ES] La presente tesis doctoral abarca el estudio de la oligomerización de etileno mediante el empleo de catalizadores heterogéneos bifuncionales basados en Ni disperso en aluminosilicatos porosos ácidos. Las olefinas ...
Desarrollo de catalizadores híbridos CuZnOAl2O3/zeolita para el proceso de síntesis directa de DME

García Trenco, Andrés (Universitat Politècnica de València, 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 (Universitat Politècnica de València, 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 ...
Desarrollo de catalizadores tándem basados en Ni/SiO2-Al2O3 y zeolita H-ZSM-5 para la oligomerización de bioetileno a biocombustible de aviación

Norman Ayllón, Eric (Universitat Politècnica de València, 2022-11-24)

[ES] A pesar de que el transporte aéreo supone únicamente el 3% de las emisiones mundiales de gases de efecto invernadero, el principal reto que afronta este sector es la dificultad para su descarbonización y, en consecuencia, ...
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 basados en hierro soportados para la hidrogenación directa de CO2 a hidrocarburos.

Castro Collante, Daniela (Universitat Politècnica de València, 2021-01-13)

[ES] El dióxido de carbono es uno de los principales gases de efecto invernadero que causa el calentamiento global de nuestro planeta, con un impacto indiscutible sobre el cambio climático. Para reducir las emisiones de ...
Estudio de catalizadores microporosos Mo/zeolita en la reacción de deshidroaromatización de metano

Peris Chanzá, Ernesto José (Universitat Politècnica de València, 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 (Universitat Politècnica de València, 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 ...
High-performing Ir- and Pt-containing catalysts based on mesoporous beta zeolite for the selective ring opening of decalin

Suarez, Natalia; Arribas Viana, Maria De Los Desamparados; Moreno, Andres; MARTINEZ FELIU, AGUSTIN (The Royal Society of Chemistry, 2020-02-21)

[EN] Selective ring opening (SRO) of naphthenic molecules resulting from the hydrogenation of polyaromatics is a desirable catalytic route for upgrading low-quality diesel fractions such as hydrotreated light cycle oil ...
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 (Universitat Politècnica de València, 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 ...
Nature of Active Nickel Sites and Initiation Mechanism for Ethylene Oligomerization on Heterogeneous Ni-beta Catalysts

Moussa, Sara; Concepción Heydorn, Patricia; Arribas Viana, Maria De Los Desamparados; MARTINEZ FELIU, AGUSTIN (American Chemical Society, 2018-05)

[EN] Higher olefins produced via ethylene oligomerization are versatile commodity chemicals serving a vast range of industries with large global economic impact. Nickel aluminosilicates are promising candidates to replace ...