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Activated carbons for the removal of low-concentration gaseous toluene at the semipilot scale / Juan Carratalà-Abril in Industrial & engineering chemistry research, Vol. 48 N°4 (Février 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N°4 (Février 2009) . - p. 2066–2075 Titre : Activated carbons for the removal of low-concentration gaseous toluene at the semipilot scale Type de document : texte imprimé Auteurs : Juan Carratalà-Abril, Auteur ; Maria Angeles Lillo-Ródenas, Auteur ; Angel Linares-Solano, Auteur Année de publication : 2009 Article en page(s) : p. 2066–2075 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Low-concentration  gaseous  toluene  Activated  carbons  Semipilot  plant  scale Résumé : The present paper focuses on the removal of low-concentration gaseous toluene by adsorption on activated carbons (AC) at the semipilot plant scale. The performance of AC prepared by chemical and physical activation is analyzed and compared with a commercial AC. Our results have shown similar shapes for the breakthrough curves in the physically AC and the commercial AC, close to ideality, and similar lengths of the mass transfer zone, despite their different pore size distributions. This behavior is mostly related to a strong adsorbate−adsorbent interaction for the three AC, whereas this interaction has proved to be weaker in the chemically activated ones. The narrow micropore volume influences the breakthrough and saturation times, and a simple kinetic model has been used to fit the experimental data leading to good prediction of the adsorption capacities. A mathematical model, suitable for diluted concentrations, has been used to simulate the breakthrough curves. This model has proved to be useful to fit curves at laboratory scale and predict the adsorption behavior at larger scales. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800521s [article] Activated carbons for the removal of low-concentration gaseous toluene at the semipilot scale [texte imprimé] / Juan Carratalà-Abril, Auteur ; Maria Angeles Lillo-Ródenas, Auteur ; Angel Linares-Solano, Auteur . - 2009 . - p. 2066–2075. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N°4 (Février 2009) . - p. 2066–2075 Mots-clés : Low-concentration  gaseous  toluene  Activated  carbons  Semipilot  plant  scale Résumé : The present paper focuses on the removal of low-concentration gaseous toluene by adsorption on activated carbons (AC) at the semipilot plant scale. The performance of AC prepared by chemical and physical activation is analyzed and compared with a commercial AC. Our results have shown similar shapes for the breakthrough curves in the physically AC and the commercial AC, close to ideality, and similar lengths of the mass transfer zone, despite their different pore size distributions. This behavior is mostly related to a strong adsorbate−adsorbent interaction for the three AC, whereas this interaction has proved to be weaker in the chemically activated ones. The narrow micropore volume influences the breakthrough and saturation times, and a simple kinetic model has been used to fit the experimental data leading to good prediction of the adsorption capacities. A mathematical model, suitable for diluted concentrations, has been used to simulate the breakthrough curves. This model has proved to be useful to fit curves at laboratory scale and predict the adsorption behavior at larger scales. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800521s