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Modeling study of the sorption-enhanced reaction process for CO2 capture. I. model development and validation / Hendricus Th. J. Reijers in Industrial & engineering chemistry research, Vol. 48 N° 15 (Août 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 6966–69740 Titre : Modeling study of the sorption-enhanced reaction process for CO2 capture. I. model development and validation Type de document : texte imprimé Auteurs : Hendricus Th. J. Reijers, Auteur ; Jurriaan Boon, Auteur ; Gerard D. Elzinga, Auteur Année de publication : 2009 Article en page(s) : pp. 6966–69740 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : One-dimensional  reactor  model  Sorption-enhanced  steam-methane  reforming  Water−gas  shift  reactor Résumé : A one-dimensional reactor model has been developed to describe the performance of a sorption-enhanced steam-methane reforming and water−gas shift reactor. In part I of this paper, the model is verified using the analytical solution for the breakthrough curve and validated using the results of laboratory-scale CO2 sorption-only experiments. Langmuir and Freundlich isotherms are fitted to an experimentally derived adsorption isotherm, while a linear driving force model is used to describe the sorption kinetics. The breakthrough profile is accurately described using the Freundlich isotherm. This holds also when the purge flow or duration of the desorption step are decreased, provided the mass transfer coefficient is changed accordingly during the desorption step. A sensitivity analysis shows that the breakthrough profile is sensitive to the adopted isotherm model and its parameters. The molecular diffusion coefficient affects the slope of the breakthrough curve, while particle size and heat of adsorption show hardly any effect. In part II, the model will be applied to laboratory-scale sorption-enhanced steam-methane reforming experiments. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801319q [article] Modeling study of the sorption-enhanced reaction process for CO2 capture. I. model development and validation [texte imprimé] / Hendricus Th. J. Reijers, Auteur ; Jurriaan Boon, Auteur ; Gerard D. Elzinga, Auteur . - 2009 . - pp. 6966–69740. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 6966–69740 Mots-clés : One-dimensional  reactor  model  Sorption-enhanced  steam-methane  reforming  Water−gas  shift  reactor Résumé : A one-dimensional reactor model has been developed to describe the performance of a sorption-enhanced steam-methane reforming and water−gas shift reactor. In part I of this paper, the model is verified using the analytical solution for the breakthrough curve and validated using the results of laboratory-scale CO2 sorption-only experiments. Langmuir and Freundlich isotherms are fitted to an experimentally derived adsorption isotherm, while a linear driving force model is used to describe the sorption kinetics. The breakthrough profile is accurately described using the Freundlich isotherm. This holds also when the purge flow or duration of the desorption step are decreased, provided the mass transfer coefficient is changed accordingly during the desorption step. A sensitivity analysis shows that the breakthrough profile is sensitive to the adopted isotherm model and its parameters. The molecular diffusion coefficient affects the slope of the breakthrough curve, while particle size and heat of adsorption show hardly any effect. In part II, the model will be applied to laboratory-scale sorption-enhanced steam-methane reforming experiments. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801319q

Modeling study of the sorption-enhanced reaction process for CO2 capture. II. application to steam-methane reforming / Hendricus Th. J. Reijers in Industrial & engineering chemistry research, Vol. 48 N° 15 (Août 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 6975–6982 Titre : Modeling study of the sorption-enhanced reaction process for CO2 capture. II. application to steam-methane reforming Type de document : texte imprimé Auteurs : Hendricus Th. J. Reijers, Auteur ; Jurriaan Boon, Auteur ; Gerard D. Elzinga, Auteur Année de publication : 2009 Article en page(s) : pp. 6975–6982 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Reactor  model  Sorption-enhanced  reaction  process  Steam-methane  reforming Résumé : In this paper, the reactor model introduced in part I will be verified using the results of an analytical solution for the increase of CH4 conversion over the bed and validated using the results of sorption-enhanced steam-methane reforming laboratory-scale experiments. An experimentally derived rate equation for the steam-methane reforming reaction is used, a literature rate equation for the water−gas shift reaction. An overview of modeling work on the sorption-enhanced reaction process for steam-methane reforming performed by other groups is presented. The CH4 and CO2 profiles obtained from laboratory-scale experiments are quite satisfactorily described using a Freundlich isotherm. A sensitivity analysis shows that both the CH4 and CO2 profiles are sensitive to the adopted isotherm model and its parameters. In addition to that, the CH4 and CO2 profiles are sensitive to the diffusion coefficient. Neither profile is sensitive to the particle size or the heat of adsorption. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8013204 [article] Modeling study of the sorption-enhanced reaction process for CO2 capture. II. application to steam-methane reforming [texte imprimé] / Hendricus Th. J. Reijers, Auteur ; Jurriaan Boon, Auteur ; Gerard D. Elzinga, Auteur . - 2009 . - pp. 6975–6982. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 6975–6982 Mots-clés : Reactor  model  Sorption-enhanced  reaction  process  Steam-methane  reforming Résumé : In this paper, the reactor model introduced in part I will be verified using the results of an analytical solution for the increase of CH4 conversion over the bed and validated using the results of sorption-enhanced steam-methane reforming laboratory-scale experiments. An experimentally derived rate equation for the steam-methane reforming reaction is used, a literature rate equation for the water−gas shift reaction. An overview of modeling work on the sorption-enhanced reaction process for steam-methane reforming performed by other groups is presented. The CH4 and CO2 profiles obtained from laboratory-scale experiments are quite satisfactorily described using a Freundlich isotherm. A sensitivity analysis shows that both the CH4 and CO2 profiles are sensitive to the adopted isotherm model and its parameters. In addition to that, the CH4 and CO2 profiles are sensitive to the diffusion coefficient. Neither profile is sensitive to the particle size or the heat of adsorption. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8013204