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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/72883

    Título
    Intensification of catalytic CO2 methanation mediated by in-situ water removal through a high-temperature polymeric thin-film composite membrane
    Autor
    Escorihuela, Sara
    Cerdá-Moreno, Cristina
    Weigelt, Fynn
    Remiro-Buenamañana, Sonia
    Escolástico, Sonia
    Tena Matias, AlbertoAutoridad UVA Orcid
    Shishatskiy, Sergey
    Brinkmann, Torsten
    Chica, Antonio
    Serra, Jose Manuel
    Año del Documento
    2022
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Journal of CO2 Utilization 55 (2022) 101813
    Zusammenfassung
    Catalytic CO2 methanation technology can be improved by process intensification, i.e. enabling higher energy efficiency and process sustainability. Here, thin-film composite membranes (TFCM) were developed for in-situ water removal in a catalytic membrane reactor (CMR) for the Sabatier process. The selective separation layer (1.4 μm-thick) of the composite membrane is made of the polyimide 6FDA-6FpDA, a glassy polyimide, which exhibits high permeability and selectivity together with stable function at unprecedented high temperatures (>200 °C), compared to polyimides reported until now (90 °C), thus matching the temperature range of Sabatier reactors. Remarkably, TFCM developed in this work, allow to extract an outstanding amount of water up to 1 m3/(m2·h·bar) at 260 °C. TFCM was implemented for the water removal from the methanation reaction in a CMR operated at 260 °C and using Ni-Todorokite as catalyst. The TFCM-mediated water-extraction enabled to raise both catalytic stability and activity during CMR operation. CO2 conversion stability was greatly improved exhibiting a conversion value of 72 % during the course of the reaction (21 % increase in CO2 conversion), with a water removal of 12.5 % and specific flux of ∼100 g·h−1 m−2.
    Revisión por pares
    SI
    DOI
    10.1016/j.jcou.2021.101813
    Patrocinador
    Spanish Government (SVP-2014-068356, SVP-2014-068713, RTI2018-102161 and IJCI- 2016-28330 grants)
    Generalitat Valenciana (PROMETEO/2018/ 006 grant).
    Propietario de los Derechos
    elsevier
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/72883
    Tipo de versión
    info:eu-repo/semantics/acceptedVersion
    Derechos
    restrictedAccess
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    Universidad de Valladolid

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