Documents disponibles écrits par cet auteur

Biomass combustion with in situ CO2 capture with CaO. I. process description and economics / Juan Carlos Abanades in Industrial & engineering chemistry research, Vol. 50 N° 11 (Juin 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 11 (Juin 2011) . - pp. 6972-6981 Titre : Biomass combustion with in situ CO2 capture with CaO. I. process description and economics Type de document : texte imprimé Auteurs : Juan Carlos Abanades, Auteur ; Monica Alonso, Auteur ; Nuria Rodriguez, Auteur Année de publication : 2011 Article en page(s) : pp. 6972-6981 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Carbon  dioxide  In  situ  Combustion  Biomass Résumé : A novel concept is proposed to capture CO2 from biomass, burned in a circulating fluidized bed at a sufficiently low temperature (below 700 °C) to allow capture "in situ" by CaO. This step is followed by the calcination of CaCO3 in an interconnected oxy-fuel combustor that delivers a concentrated stream of CO2 suitable for permanent geological storage. A conceptual design and cost estimation exercise is presented and compared with other similar power plant schemes based on biomass and fossil fuels. A sensitivity analysis of the main cost variables reveals that the concept proposed is competitive against other low-carbon systems for lower values of Green Certificates and higher values of a carbon tax. The process could have long-term applications for large-scale biomass-fired systems and medium-term applications in helping large-scale power plants with CO2 capture and storage to meet the target of zero emissions by taking advantage of the negative emissions achieved from CO2 captured from biomass. A second part of this work (see the next article in this issue) demonstrates the concept in a 30 kW circulating fluidizedbed test facility. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24199916 [article] Biomass combustion with in situ CO2 capture with CaO. I. process description and economics [texte imprimé] / Juan Carlos Abanades, Auteur ; Monica Alonso, Auteur ; Nuria Rodriguez, Auteur . - 2011 . - pp. 6972-6981. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 11 (Juin 2011) . - pp. 6972-6981 Mots-clés : Carbon  dioxide  In  situ  Combustion  Biomass Résumé : A novel concept is proposed to capture CO2 from biomass, burned in a circulating fluidized bed at a sufficiently low temperature (below 700 °C) to allow capture "in situ" by CaO. This step is followed by the calcination of CaCO3 in an interconnected oxy-fuel combustor that delivers a concentrated stream of CO2 suitable for permanent geological storage. A conceptual design and cost estimation exercise is presented and compared with other similar power plant schemes based on biomass and fossil fuels. A sensitivity analysis of the main cost variables reveals that the concept proposed is competitive against other low-carbon systems for lower values of Green Certificates and higher values of a carbon tax. The process could have long-term applications for large-scale biomass-fired systems and medium-term applications in helping large-scale power plants with CO2 capture and storage to meet the target of zero emissions by taking advantage of the negative emissions achieved from CO2 captured from biomass. A second part of this work (see the next article in this issue) demonstrates the concept in a 30 kW circulating fluidizedbed test facility. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24199916

Effect of partial carbonation on the cyclic CaO carbonation reaction / Gemma Grasa in Industrial & engineering chemistry research, Vol. 48 N° 20 (Octobre 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 20 (Octobre 2009) . - pp. Titre : Effect of partial carbonation on the cyclic CaO carbonation reaction Type de document : texte imprimé Auteurs : Gemma Grasa, Auteur ; Juan Carlos Abanades, Auteur ; Edward J. Anthony, Auteur Année de publication : 2010 Article en page(s) : pp. Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : CaO  particles  Carbonation Résumé : CaO particles from the calcination of natural limestones can be used as regenerable solid sorbents in some CO2 capture systems. Their decay curves in terms of CO2 capture capacity have been extensively studied in the literature, always in experiments allowing particles to reach their maximum carbonation conversion for a given cycle. However, at the expected operating conditions in a CO2 capture system using the carbonation reaction, a relevant fraction of the CaO particles will not have time to fully convert in the carbonator reactor. This work investigates if there is any effect on the decay curves when CaO is only partially converted in each cycle. Experiments have been conducted in a thermobalance arranged to interrupt the carbonation reaction in each cycle before the end of the fast reaction period typical in the CaO−CO2 reaction. It is shown that, after the necessary normalization of results, the effective capacity of the sorbent to absorb CO2 during particle lifetime in the capture system slightly increases and CaO particles partially converted behave “younger” than particles fully converted after every calcination. This has beneficial implications for the design of carbonation/calcination loops. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900443y [article] Effect of partial carbonation on the cyclic CaO carbonation reaction [texte imprimé] / Gemma Grasa, Auteur ; Juan Carlos Abanades, Auteur ; Edward J. Anthony, Auteur . - 2010 . - pp. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 20 (Octobre 2009) . - pp. Mots-clés : CaO  particles  Carbonation Résumé : CaO particles from the calcination of natural limestones can be used as regenerable solid sorbents in some CO2 capture systems. Their decay curves in terms of CO2 capture capacity have been extensively studied in the literature, always in experiments allowing particles to reach their maximum carbonation conversion for a given cycle. However, at the expected operating conditions in a CO2 capture system using the carbonation reaction, a relevant fraction of the CaO particles will not have time to fully convert in the carbonator reactor. This work investigates if there is any effect on the decay curves when CaO is only partially converted in each cycle. Experiments have been conducted in a thermobalance arranged to interrupt the carbonation reaction in each cycle before the end of the fast reaction period typical in the CaO−CO2 reaction. It is shown that, after the necessary normalization of results, the effective capacity of the sorbent to absorb CO2 during particle lifetime in the capture system slightly increases and CaO particles partially converted behave “younger” than particles fully converted after every calcination. This has beneficial implications for the design of carbonation/calcination loops. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900443y