Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/167521
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Validation of the H2 production stage via SER under relevant conditions for the Ca/Cu reforming process practical application |
Autor: | Grasa Adiego, Gemma CSIC ORCID ; Navarro López, María Victoria CSIC ORCID ; López Sebastián, José Manuel CSIC ORCID ; Díez-Martín, Laura CSIC ORCID; Fernández García, José Ramón CSIC ORCID ; Murillo Villuendas, Ramón CSIC ORCID | Palabras clave: | Sorption enhanced steam methane reforming H2 production Pressurized fixed bed reactors CO2 capture CaO-Ca12Al14O33 sorbent Ca/Cu process |
Fecha de publicación: | 29-abr-2017 | Editor: | Elsevier | Citación: | Chemical Engineering Journal 324: 266-278 (2017) | Resumen: | The joint performance of a CaO-based sorbent and a Ni-based commercial catalyst has been assessed under relevant conditions for the SER stage in the Ca/Cu H 2 production process. These conditions comprise processing CH 4 space velocities suitable for the scaling up of the process, operation of the sys- tem at pressure, and testing materials that had experienced up to 200 oxidation/reduction cycles. The system, catalyst and CaO-based sorbent, was able to fulfil the SER equilibrium composition up to 2.5 kg CH 4 h 1 kg cat 1 ,CH 4 space velocity that would allow the scaling up of the process. In this way, a gas stream containing up to 95% vol. H 2 was obtained at 923 K, steam to carbon ratios of 3.2 and 4, sor- bent to catalyst weight ratios from 4 to 15 and for operation pressures between 1 and 9 bar. The effect of oxidation/reduction cycles on catalyst performance was assessed, and the mixture sorbent and aged cat- alyst was able to process up to 2.5 kg CH 4 h 1 kg cat 1 , corroborating the operational limit determined for the fresh materials. The total operation pressure (from 1 to 9 bar) did not have an important influence on H 2 yield, and/or materials performance. Sorbent carbonation reaction rates up to 4.42 * 10 2 kmol h 1 kg sorb 1 were determined in the experiments, being this parameter responsible of the limit in CH 4 space velocity that can be successfully converted through this sorbent/catalyst system. The experimental results have been successfully described by a pseudo-homogeneous reactor model that incorporates the main kinetic expressions of the reactions involved in the SER stage. | Versión del editor: | http://dx.doi.org/10.1016/j.cej.2017.04.134 | URI: | http://hdl.handle.net/10261/167521 | DOI: | 10.1016/j.cej.2017.04.134 | ISSN: | 1385-8947 |
Aparece en las colecciones: | (ICB) Artículos (INCAR) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
66_ChemicalEngineeringJournal324(2017)266-278-pp.pdf | 1,22 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
27
checked on 08-mar-2024
WEB OF SCIENCETM
Citations
24
checked on 29-feb-2024
Page view(s)
349
checked on 18-mar-2024
Download(s)
284
checked on 18-mar-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.