Absorption Mass-Transfer Characteristics of Mellapak Packings Series / L. Valenz in Industrial & engineering chemistry research, Vol. 50 N° 21 (Novembre 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 21 (Novembre 2011) . - pp. 12134-12142 Titre : Absorption Mass-Transfer Characteristics of Mellapak Packings Series Type de document : texte imprimé Auteurs : L. Valenz, Auteur ; F. J. Rejl, Auteur ; J. Síma, Auteur Année de publication : 2011 Article en page(s) : pp. 12134-12142 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Mass transfer Résumé : Mass-transfer characteristics were measured for the Mellapak structured packing series 250Y, 350Y, 452Y, and 500Y. kLa was measured by oxygen desorption from water and the effective mass-transfer area a by absorption of CO2 into NaOH solution and also by oxygen absorption into a sulfite solution. Using Bodenstein numbers determined by means of the "cold" air-water dynamic experiments, effects of gas- and liquid-phase axial mixing on the characteristics were evaluated for Mellapak 250Y. Strikingly large differences found between the mass-transfer parameters and their flow dependencies measured in this work and those predicted by models especially designed for the prediction of the parameters in corrugated sheet structured packings (Billet, R.; Schultes, M. Chem. Eng. Res. Des. 1999, 77, 498; Rocha, J. A.; Bravo, J. L.; Fair, J. R. Ind. Eng. Chem. Res. 1996, 35, 1660; Olujić, Z.; Kamerbeek, A. B.; Graauw, J. Chem. Eng. Process. 1999,38,683) demonstrate the bad physical relevance of the parameters predicted. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24697530 [article] Absorption Mass-Transfer Characteristics of Mellapak Packings Series [texte imprimé] / L. Valenz, Auteur ; F. J. Rejl, Auteur ; J. Síma, Auteur . - 2011 . - pp. 12134-12142. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 21 (Novembre 2011) . - pp. 12134-12142 Mots-clés : Mass transfer Résumé : Mass-transfer characteristics were measured for the Mellapak structured packing series 250Y, 350Y, 452Y, and 500Y. kLa was measured by oxygen desorption from water and the effective mass-transfer area a by absorption of CO2 into NaOH solution and also by oxygen absorption into a sulfite solution. Using Bodenstein numbers determined by means of the "cold" air-water dynamic experiments, effects of gas- and liquid-phase axial mixing on the characteristics were evaluated for Mellapak 250Y. Strikingly large differences found between the mass-transfer parameters and their flow dependencies measured in this work and those predicted by models especially designed for the prediction of the parameters in corrugated sheet structured packings (Billet, R.; Schultes, M. Chem. Eng. Res. Des. 1999, 77, 498; Rocha, J. A.; Bravo, J. L.; Fair, J. R. Ind. Eng. Chem. Res. 1996, 35, 1660; Olujić, Z.; Kamerbeek, A. B.; Graauw, J. Chem. Eng. Process. 1999,38,683) demonstrate the bad physical relevance of the parameters predicted. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24697530

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