Enhancement of gas-to-water mass-transfer rates by the second liquid phase / Zhigang Zhang in Industrial & engineering chemistry research, Vol. 49 N° 7 (Avril 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 7 (Avril 2010) . - pp. 3223–3227 Titre : Enhancement of gas-to-water mass-transfer rates by the second liquid phase Type de document : texte imprimé Auteurs : Zhigang Zhang, Auteur ; Wei Chen, Auteur ; Sansan Yu, Auteur Année de publication : 2010 Article en page(s) : pp. 3223–3227 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Gas Water Mass Rates Liquid Résumé : Gas−liquid mass-transfer enhancement due to the presence of a second dispersed liquid phase has been discussed in this paper. Both the overall volumetric mass-transfer coefficient from the gas to bulk liquid and the partition coefficient were calculated under non-steady-state conditions. The results showed that the enhancement factor increased with an increase of the partition coefficient and the volumetric mass-transfer coefficient KLa clearly increased when a second dispersed liquid phase was added, with a clear maximum at 3% of the dispersed-phase volume fraction. The influence of the dispersed phase on KLa markedly depended on the agitation rate, and a maximum KLa was attained between 650 and 700 rpm. ISSN : 0888-5885 En ligne : pp. 3223–3227 [article] Enhancement of gas-to-water mass-transfer rates by the second liquid phase [texte imprimé] / Zhigang Zhang, Auteur ; Wei Chen, Auteur ; Sansan Yu, Auteur . - 2010 . - pp. 3223–3227. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 7 (Avril 2010) . - pp. 3223–3227 Mots-clés : Gas Water Mass Rates Liquid Résumé : Gas−liquid mass-transfer enhancement due to the presence of a second dispersed liquid phase has been discussed in this paper. Both the overall volumetric mass-transfer coefficient from the gas to bulk liquid and the partition coefficient were calculated under non-steady-state conditions. The results showed that the enhancement factor increased with an increase of the partition coefficient and the volumetric mass-transfer coefficient KLa clearly increased when a second dispersed liquid phase was added, with a clear maximum at 3% of the dispersed-phase volume fraction. The influence of the dispersed phase on KLa markedly depended on the agitation rate, and a maximum KLa was attained between 650 and 700 rpm. ISSN : 0888-5885 En ligne : pp. 3223–3227

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