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A novel method for studying multicomponent gas uptake on solid adsorbent with near-infrared process analytical technique / Chen-Bo Cai in Industrial & engineering chemistry research, Vol. 47 N°18 (Septembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6835–6840 Titre : A novel method for studying multicomponent gas uptake on solid adsorbent with near-infrared process analytical technique Type de document : texte imprimé Auteurs : Chen-Bo Cai, Auteur ; Qing-Juan Han, Auteur ; Li-Juan Tang, Auteur Année de publication : 2008 Article en page(s) : p. 6835–6840 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Orthoxylene/isoamyl  alcohol  Silica  gel  Multicomponent  gas  adsorption Résumé : In this paper, we have studied the uptake of orthoxylene/isoamyl alcohol on silica gel as an example to demonstrate a novel methodology for studying multicomponent gas adsorption on solid adsorbent. In the method, the solid adsorbent was filled into a differential adsorption bed, and the bed was inline monitored with near-infrared diffuse reflectance spectroscopy continuously when the adsorption process was taking place. The spectral data recorded during the process were treated with algorithm of locally weighted regression, which constructed a series of partial least-squares models to more accurately predict concentrations of each adsorbate on the adsorbent. These efforts made the method feasible to obtain more thermodynamic and kinetic information about the adsorption process in a more convenient, rapid, economical, as well as straightforward way. With the method, we obtained the isothermal lines of the multicomponent system at 293.15 K, and the instantaneous adsorption rate of each component during the whole adsorption process. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800003z [article] A novel method for studying multicomponent gas uptake on solid adsorbent with near-infrared process analytical technique [texte imprimé] / Chen-Bo Cai, Auteur ; Qing-Juan Han, Auteur ; Li-Juan Tang, Auteur . - 2008 . - p. 6835–6840. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6835–6840 Mots-clés : Orthoxylene/isoamyl  alcohol  Silica  gel  Multicomponent  gas  adsorption Résumé : In this paper, we have studied the uptake of orthoxylene/isoamyl alcohol on silica gel as an example to demonstrate a novel methodology for studying multicomponent gas adsorption on solid adsorbent. In the method, the solid adsorbent was filled into a differential adsorption bed, and the bed was inline monitored with near-infrared diffuse reflectance spectroscopy continuously when the adsorption process was taking place. The spectral data recorded during the process were treated with algorithm of locally weighted regression, which constructed a series of partial least-squares models to more accurately predict concentrations of each adsorbate on the adsorbent. These efforts made the method feasible to obtain more thermodynamic and kinetic information about the adsorption process in a more convenient, rapid, economical, as well as straightforward way. With the method, we obtained the isothermal lines of the multicomponent system at 293.15 K, and the instantaneous adsorption rate of each component during the whole adsorption process. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800003z