Adsorbent density impact on gas storage capacities
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Título: | Adsorbent density impact on gas storage capacities |
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Autor/es: | Kunowsky, Mirko | Suárez García, Fabián | Linares-Solano, Angel |
Grupo/s de investigación o GITE: | Materiales Carbonosos y Medio Ambiente |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica |
Palabras clave: | Physisorption | High pressure hydrogen storage | Supercritical gas adsorption | Activated carbons | Metal-organic frameworks (MOF) |
Área/s de conocimiento: | Ciencia de los Materiales e Ingeniería Metalúrgica | Química Inorgánica |
Fecha de creación: | 2013 |
Fecha de publicación: | 16-feb-2013 |
Editor: | Elsevier |
Cita bibliográfica: | KUNOWSKY, Mirko; SUÁREZ-GARCÍA, Fabián; LINARES-SOLANO, Ángel. “Adsorbent density impact on gas storage capacities”. Microporous and Mesoporous Materials. Vol. 173 (June 2013). ISSN 1387-1811, pp. 47-52 |
Resumen: | In the literature, different approaches, terminologies, concepts and equations are used for calculating gas storage capacities. Very often, these approaches are not well defined, used and/or determined, giving rise to significant misconceptions. Even more, some of these approaches, very much associated with the type of adsorbent material used (e.g., porous carbons or new materials such as COFs and MOFs), impede a suitable comparison of their performances for gas storage applications. We review and present the set of equations used to assess the total storage capacity for which, contrarily to the absolute adsorption assessment, all its experimental variables can be determined experimentally without assumptions, ensuring the comparison of different porous storage materials for practical application. These material-based total storage capacities are calculated by taking into account the excess adsorption, the bulk density (ρbulk) and the true density (ρtrue) of the adsorbent. The impact of the material densities on the results are investigated for an exemplary hydrogen isotherm obtained at room temperature and up to 20 MPa. It turns out that the total storage capacity on a volumetric basis, which increases with both, ρbulk and ρtrue, is the most appropriate tool for comparing the performance of storage materials. However, the use of the total storage capacities on a gravimetric basis cannot be recommended, because low material bulk densities could lead to unrealistically high gravimetric values. |
Patrocinador/es: | Generalitat Valenciana and FEDER (project PROMETEO/2009/047). |
URI: | http://hdl.handle.net/10045/28056 |
ISSN: | 1387-1811 (Print) | 1873-3093 (Online) |
DOI: | 10.1016/j.micromeso.2013.02.010 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.micromeso.2013.02.010 |
Aparece en las colecciones: | INV - MCMA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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Kunowsky2013_Adsorbent_density_impact_accepted_manuscript.pdf | Preprint (acceso abierto) | 274,76 kB | Adobe PDF | Abrir Vista previa |
Kunowsky2013_Adsorbent_density_impact_final.pdf | Versión final (acceso restringido) | 487,19 kB | Adobe PDF | Abrir Solicitar una copia |
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