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Browsing by Author "Escolástico Rozalén, Sonia"

Now showing items 1-20 of 46

Catalytic activation of ceramic H2 membranes for CMR processes

Escolástico Rozalén, Sonia; KJOLSETH, C.; Serra Alfaro, José Manuel (Elsevier, 2016-11-01)

[EN] The application of catalytic membrane reactors can overcome some of the disadvantages that reactions for the direct conversion of methane to fuels and petrochemicals present. Hydrogen separation membranes can shift ...
Chemical and mechanical stability of BCZY-GDC membranes for hydrogen separation

Mercadelli, Elisa; Gondolini, Angela; Ardit, Matteo; Cruciani, Giuseppe; Melandri, Cesare; Escolástico Rozalén, Sonia; Serra Alfaro, José Manuel; Sanson, Alessandra (Elsevier, 2022-05-15)

[EN] This work investigates, for the first time, the hydrogen permeation of BaCe0.65Zr0.20Y0.15O3-delta-Ce0.8Gd0.2O2-delta (BCZY-GDC) asymmetric membranes for 100 h, using wet 15% CO2 in Ar as sweep gas. In the same frame, ...
Chemical stability in H2S and creep characterization of the mixed protonic conductor Nd5.5WO11.25-d

Escolástico Rozalén, Sonia; Stournari, V.; Malzbender, J.; Haas-Santo, K.; Dittmeyer, Roland; Serra Alfaro, José Manuel (Elsevier, 2018)

[EN] The integration of hydrogen permeable membranes in catalytic membrane reactors for thermodynamically limited reactions such as steam methane reforming can improve the per-pass yield and simultaneously produce a ...
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). ...
Direct CO2 conversion to syngas in a BaCe0.2Zr0.7Y0.1O3- delta-based proton-conducting electrolysis cell

Bausá-Martínez, Nuria; Escolástico Rozalén, Sonia; Serra Alfaro, José Manuel (Elsevier, 2019-12)

[EN] Electrolysis of steam and CO2 is considered to be a promising instrument for energy storage via sustainable H-2 and hydrocarbon production. A model electrolysis cell was assembled using a thick BaCe0.2Zr0.7Y0.1O3-delta ...
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 electrocatalytic CO2 reduction in a pressurized tubular protonic membrane reactor

Quina-García, Imanol; Almar-Liante, Laura; Catalán-Martínez, David; Dayaghi, Amir Masoud; MARTINEZ FELIU, AGUSTIN; Norby, Truls; Escolástico Rozalén, Sonia; Serra Alfaro, José Manuel (Cell Press, 2023-10-19)

[EN] Power-to-methane technology enables storage of renewable elec-tricity in chemical energy, which can be transported and converted us-ing existing infrastructure. The moderate energy efficiency of this pro-cess is ...
Effect of microstructure on electrical and mechanical properties of La5.4WO12-delta proton conductor

Deibert, Wendelin; Stournari, Vasiliki; Ivanova, Mariya E.; Escolástico Rozalén, Sonia; Serra Alfaro, José Manuel; Malzbender, Juergen; Beck, Tilman; Singheiser, Lorenz; Guillon, Olivier; Meulenberg, Wilhelm A. (Elsevier, 2018-08)

[EN] The relationships between microstructural characteristics and electrical as well as mechanical properties of La5.4WO12-delta (LWO54) materials were studied. Polycrystalline LWO54 samples revealed identical transport ...
Effects of sintering additives on defect chemistry and hydration of BaZr0.4Ce0.4(Y,Yb)0.2O3-δ proton conducting electrolytes

Dayaghi, Amir Masoud; Polfus, Jonathan M.; Strandbakke, Ragnar; Pokle, Anuj; Almar-Liante, Laura; Escolástico Rozalén, Sonia; Vollestad, Einar; Serra Alfaro, José Manuel; Haugsrud, Reidar; Norby, Truls (Elsevier, 2023-11-15)

[EN] The effects of NiO, ZnO, and CuO sintering additives (0.5, 1.0, or 2.0 wt%) on the sintering behaviour, effective acceptor concentration, and hydration thermodynamics are examined for BaZr0.4Ce0.4Y0.1Yb0.1O3_delta and ...
Electrifying Ba0.5Sr0.5Co0.8Fe0.2O3-δ; for focalized heating in oxygen transport membranes

Laqdiem-Marin, Marwan; García-Fayos, Julio; Almar-Liante, Laura; Carrillo-Del Teso, Alfonso Juan; Represa-Bullido, Álvaro; López Nieto, José Manuel; Escolástico Rozalén, Sonia; Catalán-Martínez, David; Serra Alfaro, José Manuel (Elsevier, 2024-04)

[EN] Industry decarbonization requires the development of highly efficient and flexible technologies relying on renewable energy resources, especially biomass and solar/wind electricity. In the case of pure oxygen production, ...
Electrolizadores de alta temperatura basados en cerámicas protónicas

Bausá Martínez, Nuria (Universitat Politècnica de València, 2020-06-29)

[ES] La presente tesis se enmarca en el ámbito del uso y almacenamiento de energías renovables. El objetivo es desarrollar los materiales y la tecnología necesaria para transformar los excedentes eléctricos derivados de ...
Enhanced H2 Separation through Mixed Proton Electron Conducting Membranes Based on La5.5W0.8M0.2O11.25 d

Escolástico Rozalén, Sonia; Seeger, J.; Roitsch, S.; Ivanova, M.; Meulenberg, Wilhem Albert; Serra Alfaro, José Manuel (Wiley-VCH Verlag, 2013-08)

La5.5WO11.25- is a proton-conducting oxide that shows high protonic conductivity, sufficient electronic conductivity, and stability in moist CO2 environments. However, the H-2 flows achieved to date when using La5.5WO11.25- ...
Estudio del efecto de partículas inorgánicas en la permeselectividad de membranas de matriz mixta destinadas a la separación de mezclas CO2/CH4

Valero Romero, Lucía (Universitat Politècnica de València, 2018-09-11)

[ES] En este Trabajo Final de Master (TFM) se estudia el efecto de permeselectividad de diferentes membranas de matriz mixta para la purificación de gas natural y biogás. En este tipo de procesos la principal pareja de ...
Ethylene Production by ODHE in Catalytic Modified Ba0.5Sr0.5Co0.8Fe0.2O3 Membrane Reactors

Lobera González, Maria Pilar; Escolástico Rozalén, Sonia; García Fayos, Julio; Serra Alfaro, José Manuel (Wiley-VCH Verlag, 2012)

[EN] Process intensification by the integration of membranes and high-temperature reactors offers several advantages with regard to conventional process schemes, that is, energy saving, safe operation, reduced plant/unit ...
Evaluation of Er Doped CeO2-delta as Oxygen Transport Membrane

Balaguer Ramirez, Maria; Solis, Cecilia; Escolástico Rozalén, Sonia; García-Fayos, Julio; Serra Alfaro, José Manuel (MDPI AG, 2022-02)

[EN] Ceria based materials are robust candidates for a range of applications involving redox reactions and high oxygen activity. The substitution of erbium in the ceria lattice introduces extrinsic oxygen vacancies. Further ...
Fluid Dynamic Modeling of Oxygen Permeation through Mixed Ionic-Electronic Conducting Membranes

Gozálvez-Zafrilla, José M.; Santafé Moros, María Asunción; Escolástico Rozalén, Sonia; Serra Alfaro, José Manuel (ELSEVIER SCIENCE BV, 2011-08-15)

[EN] The oxygen transport in a lab-scale experimental set-up for permeation testing of oxygen transport membranes has been modeled using computational fluid dynamics using Finite Element Analysis. The modeling considered ...
Gas Separation Properties of Polyimide Thin Films on Ceramic Supports for High Temperature Applications

Escorihuela-Roca, Sara; Tena, Alberto; Shishatskiy, Sergey; Escolástico Rozalén, Sonia; Brinkmann, Torsten; Serra Alfaro, José Manuel; Abetz, Volker (MDPI AG, 2018)

[EN] Novel selective ceramic-supported thin polyimide films produced in a single dip coating step are proposed for membrane applications at elevated temperatures. Layers of the polyimides P84 (R), Matrimid 5218 (R), and ...
High Ethylene Production through ODHE Membrane Reactors based on Fast Oxygen-Ion Conductors

Lobera González, Maria Pilar; Escolástico Rozalén, Sonia; Serra Alfaro, José Manuel (Wiley-VCH Verlag, 2011-09-19)

[EN] High ethylene productivity through the oxidative dehydrogenation of ethane has been achieved in a catalytic membrane reactor based on a highly solid-state oxygen permeable material (Ba0.5Sr0.5Co0.8Fe0.2O3 d). ...
Hydrogen permeation through Nd-doped La6WO12 membranes

Escolástico Rozalén, Sonia; Solis Díaz, Cecilia; Serra Alfaro, José Manuel (Elsevier, 2012-05-28)

[EN] This work presents the preparation and characterization of the hydrogen permeation of a mixed protonic-electronic conducting membrane based on the doped system La6WO12, in this instance, (La5/6Nd1/6)(5.5)WO12-delta. ...
Hydrogen separation and stability study of ceramic membranes based on the system Nd5LnWO12

Escolástico Rozalén, Sonia; Solis Díaz, Cecilia; Serra Alfaro, José Manuel (Elsevier, 2011-09)

This contribution presents the preparation, permeation and stability study of mixed protonic-electronic conducting membranes based on the system Nd(5)LnWO(12). The tung-states Ln(6)WO(12) are proton conducting crystalline ...