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dc.contributor.authorÁlvarez Gutiérrez, Noelia-
dc.contributor.authorGarcía López, Susana-
dc.contributor.authorGil Matellanes, María Victoria-
dc.contributor.authorRubiera González, Fernando-
dc.contributor.authorPevida García, Covadonga-
dc.date.accessioned2015-03-02T10:42:01Z-
dc.date.available2015-03-02T10:42:01Z-
dc.date.issued2014-12-
dc.identifier.citationEnergy Procedia 63: 6527-6533 (2014)es_ES
dc.identifier.issn1876-6102-
dc.identifier.urihttp://hdl.handle.net/10261/111587-
dc.description12th International Conference on Greenhouse Gas Control Technologies, GHGT-12es_ES
dc.description.abstractThe choice of an appropriate adsorbent for CO2 separation by pressure swing adsorption remains a field of intense research and it would be of great help to rely on a parameter that could be used to quickly evaluate the performance of those materials. In this work, two activated carbons prepared in our laboratory from biomass wastes (olive and cherry stones) are studied for the separation of CO2 from mixtures of CO2 and CH4. CO2 and CH4 adsorption isotherms at room temperature and up to 10 bar were determined in a high pressure magnetic suspension balance. Breakthrough adsorption experiments with simulated biogas binary mixtures were conducted in a fixed-bed lab-pilot adsorption unit. The performance of the tested carbons was assessed in terms of a dimensionless sorbent selection parameter (S), which is based on the selectivity but incorporates the nature of the adsorption isotherm under PSA operating conditions. A commercial activated carbon Calgon BPL was also tested and used as reference material for the separation process. Experimental results show that the performance of the different adsorbents, based on the calculated S parameter, may be very different depending on whether data is derived from pure component adsorption isotherms or from breakthrough adsorption experiments. Under dynamic flow conditions, activated carbons produced in this study show a great potential to be applied to a CO2/CH4 separation for biogas upgrading purposes. Further research is envisioned in order to define a PSA process that maximizes the purity and recovery of CH4.es_ES
dc.description.sponsorshipWork carried out with financial support from the Spanish MINECO (Project ENE2011-23467), co-financed by the European Regional Development Fund (ERDF). N.A-G. acknowledges a fellowship from the Spanish MINECO (FPI program), co-financed by the European Social Fund.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relation.isversionofPublisher's versiones_ES
dc.rightsopenAccesses_ES
dc.subjectBiogas upgradinges_ES
dc.subjectBiomasses_ES
dc.subjectCO2 adsorptiones_ES
dc.titleTowards Bio-upgrading of Biogas: Biomass Waste-based Adsorbentses_ES
dc.typeArtículoes_ES
dc.identifier.doi10.1016/j.egypro.2014.11.688-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.egypro.2014.11.688es_ES
dc.relation.csices_ES
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