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Listar por autor "Valencia Valencia, Susana"

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A highly stable and hierarchical tetrathiafulvalene-based metal organic framework with improved performance as a solid catalyst

Souto, Manuel; Santiago-Portillo, Andrea; Palomino Roca, Miguel; Vitorica-Yrezabal, Iñigo J.; Vieira, Bruno J. C.; Waerenborgh, João C.; Valencia Valencia, Susana; Navalón Oltra, Sergio; Rey Garcia, Fernando; García Gómez, Hermenegildo; Minguez Espallargas, Guillermo (The Royal Society of Chemistry, 2018-03)

[EN] Herein we report the synthesis of a tetrathiafulvalene (TTF)-based MOF, namely MUV-2, which shows a non-interpenetrated hierarchical crystal structure with mesoporous one-dimensional channels of ca. 3 nm and orthogonal ...
A Multi-Nuclear MAS-NMR Study on the Structural Properties of Silicalite-1 Zeolite Synthesized Using N- and P-Based Organic Structure Directing Agents

Martinez-Ortigosa, Joaquin; Simancas, Jorge; Vidal Moya, José Alejandro; Rey Garcia, Fernando; Valencia Valencia, Susana; Blasco Lanzuela, Teresa (MDPI AG, 2021-08)

[EN] The nature of organic structure directing agents (OSDAs) is of paramount importance in the final properties of zeolites, particularly the framework and porosity. Recently, the use of P-containing OSDAs has been employed ...
A new photochemical based route for the preparation of organic structure directing agents useful for zeolite synthesis

Cantin Sanz, Angel; Leiva Herrero, Sandra; Jorda Moret, Jose Luis; Valencia Valencia, Susana; Rey Garcia, Fernando; Corma Canós, Avelino (Elsevier, 2007)

[EN] A new photochemically induced [2+2] cycloaddition route for the synthesis of amines has been successfully applied for the preparation of a series of organic structure directing agents (OSDA's) that has been found to ...
Adjustment of the ZSM-5 zeolite support towards the efficient hydrogen production by ethanol steam reforming on cobalt catalysts

Grzybek, Gabriela; Greluk, Magdalena; Patulski, Piotr; Stelmachowski, Pawel; Tarach, Karolina; Slowik, Grzegorz; Rotko, Marek; Valencia Valencia, Susana; Rey Garcia, Fernando; Góra-Marek, Kinga (Elsevier, 2023-07-01)

[EN] The world is on track for replacing fossil fuels with alternative energy carriers. In the face of the ongoing global energy transformation, the focus is on hydrogen. Its production in the ethanol steam reforming (ESR) ...
Adsorption of Alkanes in Zeolites LTA and FAU: Quasi-Equilibrated Thermodesorption Supported by Molecular Simulations

Slawek, Andrzej; Vicent-Luna, José Manuel; Ogorzaly, Karolina; Valencia Valencia, Susana; Rey Garcia, Fernando; Makowski, Waclaw; Calero, Sofia (American Chemical Society, 2019-11-12)

[EN] Adsorption of n-alkanes from pentane to decane (C5¿C10) in zeolites LTA (ITQ-29 and 5A) and faujasite (FAU, dealuminated high-silica Na-FAU, NaY, and NaX) as well as branched hexane isomers in FAU was investigated by ...
Assessment of the stability of LTA zeolites under natural gas drying TSA conditions

Moura, P.A.S.; Ferracine, E.D.S.; Rodríguez-Aguado, E.; Maia, D.A.S.; Melo, D. C.; Valencia Valencia, Susana; Cardoso, D.; Rey Garcia, Fernando; Bastos-Neto, M.; Rodríguez-Castellón, E.; Azevedo, D.C.S. (Elsevier, 2024-02-01)

[EN] The main features in cationic LTA zeolites that are likely to impact its potential hydrothermal stability are interconnected. The Al content and the compensating cation play an important role in the water adsorption ...
Capturing renewable isobutanol from model vapor mixtures using an all-silica beta zeolite

Claessens, Benjamin; Gittevrongel, Guille R.; Rey Garcia, Fernando; Valencia Valencia, Susana; Cousin-Saint-Remi, Julien; Baron, Gino V.; Denayer, Joeri F.M. (Elsevier, 2021-05-15)

[EN] Isobutanol is a promising renewable platform chemical, produced via fermentation. In the conventional downstream processing, isobutanol is recovered from the fermentation broth via evaporation or gas-stripping, followed ...
Cation Gating and Relocation during the Highly Selective Trapdoor Adsorption of CO2 on Univalent Cation Forms of Zeolite Rho

Lozinska, Magdalena M.; Mowat, John P. S.; Wright, Paul A.; Thompson, Stephen P.; Jorda Moret, Jose Luis; Palomino Roca, Miguel; Valencia Valencia, Susana; Rey Garcia, Fernando (American Chemical Society, 2014-03-25)

Adsorption of CO2 and CH4 has been measured on the Na-, K-, and Cs-forms of zeolite Rho (0 9 bar; 283 333 K). Although CH4 is excluded, CO2 is readily taken up, although the uptake at low pressures decreases strongly, in ...
Charge matching between the occluded organic cations and zeolite framework as structure directing effect in zeolite synthesis

Marqués, Blanca; Leiva Herrero, Sandra; Cantin Sanz, Angel; Jorda Moret, Jose Luis; Sabater Picot, Mª José; Corma Canós, Avelino; Valencia Valencia, Susana; Rey Garcia, Fernando (Elsevier, 2008)

[EN] The charge matching effect has been found to be an important parameter driving the synthesis towards particular zeolite frameworks. This has been evidenced by isomorphous incorporation of Aluminium into the zeolite ...
Control of zeolite framework flexibility and pore topology for separation of ethane and ethylene

Bereciartua-Pérez, Pablo Javier; Cantin Sanz, Angel; Corma Canós, Avelino; Jorda Moret, Jose Luis; Palomino Roca, Miguel; Rey Garcia, Fernando; Valencia Valencia, Susana; Corcoran Jr., Edward W.; Kortunov, Pavel; Ravikovitch, Peter I.; Burton, Allen; Yoon, Chris; Wang, Yu; Paur, Charanjit; Guzman, Javier; Bishop, Adeana R.; Casty, Gary L. (American Association for the Advancement of Science (AAAS), 2017-11-24)

[EN] The discovery of new materials for separating ethylene from ethane by adsorption, instead of using cryogenic distillation, is a key milestone for molecular separations because of the multiple and widely extended uses ...
Critical Role of Dynamic Flexibility in Ge-Containing Zeolites: Impact on Diffusion

Gutierrez-Sevillano, Juan José; Calero, Sofia; Hamad, Said; Grau-Crespo, Ricardo; Rey Garcia, Fernando; Valencia Valencia, Susana; Palomino Roca, Miguel; Balestra, Salvador R. G.; Ruiz-Salvador, A. Rabdel (Wiley, 2016-06-11)

Incorporation of germanium in zeolites is well known to confer static flexibility to their framework, by stabilizing the formation of small rings. In this work, we show that the flexibility associated to Ge atoms in zeolites ...
Cu and Co modified beta zeolite catalysts for the trichloroethylene oxidation

Blanch Raga, Neus; Palomares Gimeno, Antonio Eduardo; Martínez Triguero, Luis Joaquín; Valencia Valencia, Susana (Elsevier, 2016-06-15)

[EN] In this work we have studied for the first time the catalytic activity for the oxidation of trichloroethylene (TCE) of Cu and Co beta zeolites. The results show that they are active and selective towards CO2, obtaining ...
Curative activity against citrus postharvest green mold of composite hydroxypropyl methylcellulose-beeswax edible coatings with zeolites containing Ag-nanoparticles

Palou, L.; Cerrillo, J. L.; Klangmuang, P.; Perez-Gago, M.B.; Taberner, V.; de la Fuente, B.; Sothornvit, R.; Rey Garcia, Fernando; Valencia Valencia, Susana; Palomares Gimeno, Antonio Eduardo (International Society for Horticultural Science (ISHS), 2021)

[EN] Two types of commercial Na-zeolites, linde type A (LTA) and faujasite (FAU) were prepared with different percentage of silver that was incorporated by ion exchange using solutions of AgNO3. The physico-chemical ...
Eliminación de CO2 de una corriente de gas natural

Alos Marti, Aroa (Universitat Politècnica de València, 2011-11-22)

Se realizaron experimentos de separación CO2/CH4 empleando zeolitas como adsorbentes. En primer lugar, se optimizaron las condiciones de trabajo en un reactor de leho fijo. A continuación, se hizo un barrido de materiales ...
Empleo de materiales porosos como adsorbentes selectivos en la separación de olefinas/parafinas

Pintor Labandeira, Antía (Universitat Politècnica de València, 2020-09-04)

[ES] Olefinas ligeras tales como etileno y propileno son importantes productos primarios de la industria de polímeros, y se obtienen fundamentalmente a partir de craqueo de nafta y alcanos de cadena corta, como etano y ...
Empleo de zeolitas en procesos de adsorción y separación de hidrocarburos de cadena corta

Sánchez, Ledys Yelitza (Universitat Politècnica de València, 2018-09-10)

Los procesos de separación de mezclas de hidrocarburos y gases ligeros mediante adsorción selectiva empleando sólidos microporosos son de interés en numerosas aplicaciones industriales. El objetivo de este trabajo se centra ...
Estimating CO2/N2 Permselectivity through Si/Al = 5 Small-Pore Zeolites/PTMSP Mixed Matrix Membranes: Influence of Temperature and Topology

Casado, Clara; Fernández-Barquín, Ana; Valencia Valencia, Susana; Irabien, Ángel (MDPI AG, 2018-06)

[EN] In the present work, the effect of zeolite type and topology on CO2 and N-2 permeability using zeolites of different topology (CHA, RHO, and LTA) in the same Si/Al = 5, embedded in poly(trimethylsilyl-1-propyne) (PTMSP) ...
Estudio de apertura estereoselectiva de epóxidos en presencia de zeolitas

Martinez Moreno, Maria Cruz (Universitat Politècnica de València, 2021-12-01)

[ES] Las zeolitas son aluminosilicatos cristalinos microporosos con estructuras tridimensionales y sistemas de canales y cavidades internos de dimensiones moleculares. Debido a la estabilidad estructural y térmica que ...
Estudio de procesos de separación de hidrocarburos ligeros mediante el empleo de tamices moleculares

Palomino Roca, Miguel (Universitat Politècnica de València, 2016-05-02)

[EN] The aim of this thesis is to study the use of zeolites for the separation of light hydrocarbons. In order to do so, different zeolites were synthesized and characterized by different techniques to determine their ...
Estudio de procesos de separación de hidrocarburos ligeros mediante el empleo de tamices moleculares neutros

Palomino Roca, Miguel (Universitat Politècnica de València, 2011-12-30)

El presente Proyecto tiene por objeto estudiar el uso de materiales zeolíticos para ser empleados como adsorbentes en procesos de separación de hidrocarburos ligeros. Dicha investigación está justificada por la importancia ...