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Gas–liquid effective interfacial area in a rotating packed bed / Yong Luo in Industrial & engineering chemistry research, Vol. 51 N° 50 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16320–16325 Titre : Gas–liquid effective interfacial area in a rotating packed bed Type de document : texte imprimé Auteurs : Yong Luo, Auteur ; Guang-Wen Chu, Auteur ; Hai-Kui Zou, Auteur Année de publication : 2013 Article en page(s) : pp. 16320–16325 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Gas  Liquid Résumé : Stainless steel wire mesh packing is widely used for experimental and industrial applications in rotating packed beds (RPBs) for gas–liquid contacting because it has a higher mass-transfer performance than other conventional packings. In this work, the gas–liquid effective interfacial area of a conventional RPB was studied with eight types of stainless steel wire mesh packings, consisting of four different stainless steel fibers. Gas–liquid chemisorption with CO2 in NaOH solution was employed to measure the effective interfacial area for all types of packings with different rotational speeds and gas–liquid ratios. An empirical correlation that takes the effects of the fiber diameter and opening size of the wire mesh into consideration was proposed for the calculation of the gas–liquid effective interfacial area of stainless steel wire mesh packings in a conventional RPB. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie302531j [article] Gas–liquid effective interfacial area in a rotating packed bed [texte imprimé] / Yong Luo, Auteur ; Guang-Wen Chu, Auteur ; Hai-Kui Zou, Auteur . - 2013 . - pp. 16320–16325. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16320–16325 Mots-clés : Gas  Liquid Résumé : Stainless steel wire mesh packing is widely used for experimental and industrial applications in rotating packed beds (RPBs) for gas–liquid contacting because it has a higher mass-transfer performance than other conventional packings. In this work, the gas–liquid effective interfacial area of a conventional RPB was studied with eight types of stainless steel wire mesh packings, consisting of four different stainless steel fibers. Gas–liquid chemisorption with CO2 in NaOH solution was employed to measure the effective interfacial area for all types of packings with different rotational speeds and gas–liquid ratios. An empirical correlation that takes the effects of the fiber diameter and opening size of the wire mesh into consideration was proposed for the calculation of the gas–liquid effective interfacial area of stainless steel wire mesh packings in a conventional RPB. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie302531j

Mass transfer studies in a rotating packed bed with novel rotors / Yong Luo in Industrial & engineering chemistry research, Vol. 51 N° 26 (Juillet 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 9164-9172 Titre : Mass transfer studies in a rotating packed bed with novel rotors : Chemisorption of CO2 Type de document : texte imprimé Auteurs : Yong Luo, Auteur ; Guang-Wen Chu, Auteur ; Hai-Kui Zou, Auteur Année de publication : 2012 Article en page(s) : pp. 9164-9172 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Carbon  dioxide  Chemisorption  Rotor  Packed  bed  Mass  transfer Résumé : In this work, gas―liquid mass transfer characteristics, such as effective interfacial area (ae) and liquid side mass transfer coefficient (kL), were investigated in a rotating packed bed (RPB) contactor with 5 novel rotors equipped with blades in the packing section and 1 conventional rotor without blades and fully filled with the same packing. The chemisorption of CO2 into a NaOH solution was used to evaluate ae and kL within each rotor of the RPB. The experimental results indicate that the rotors with blades can significantly intensify the mass transfer process at all rotational speeds, over a range of gas―liquid ratios. The mass transfer rate achieved within these novel rotors was between 8% and 68% higher in comparison with the conventional rotor. A model based on the Danckwerts surface renewal theory was developed to calculate the liquid side volumetric mass transfer coefficient (kLae) in the rotor. The experimentally obtained values of kLae are in agreement with model predictions within ±15%. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26107474 [article] Mass transfer studies in a rotating packed bed with novel rotors : Chemisorption of CO2 [texte imprimé] / Yong Luo, Auteur ; Guang-Wen Chu, Auteur ; Hai-Kui Zou, Auteur . - 2012 . - pp. 9164-9172. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 9164-9172 Mots-clés : Carbon  dioxide  Chemisorption  Rotor  Packed  bed  Mass  transfer Résumé : In this work, gas―liquid mass transfer characteristics, such as effective interfacial area (ae) and liquid side mass transfer coefficient (kL), were investigated in a rotating packed bed (RPB) contactor with 5 novel rotors equipped with blades in the packing section and 1 conventional rotor without blades and fully filled with the same packing. The chemisorption of CO2 into a NaOH solution was used to evaluate ae and kL within each rotor of the RPB. The experimental results indicate that the rotors with blades can significantly intensify the mass transfer process at all rotational speeds, over a range of gas―liquid ratios. The mass transfer rate achieved within these novel rotors was between 8% and 68% higher in comparison with the conventional rotor. A model based on the Danckwerts surface renewal theory was developed to calculate the liquid side volumetric mass transfer coefficient (kLae) in the rotor. The experimentally obtained values of kLae are in agreement with model predictions within ±15%. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26107474