Absorption Mass-Transfer Characteristics of Mellapak Packings Series

Autor:	F. J. Rejl, L. Valenz, J. Šíma, V. Linek
Rok vydání:	2011
Předmět:	Work (thermodynamics) Series (mathematics) Chemistry General Chemical Engineering Mass transfer Desorption Flow (psychology) Mixing (process engineering) Thermodynamics General Chemistry Structured packing Absorption (chemistry) Industrial and Manufacturing Engineering
Zdroj:	Industrial & Engineering Chemistry Research. 50:12134-12142
ISSN:	1520-5045 0888-5885
DOI:	10.1021/ie200577k
Popis:	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; Olujic, Ž.; Kamerbeek, A. B.; Graauw, J. Chem. Eng. Process.1999, 38, 683) demonstrate the bad physical relevance of the parameters predicted.
Databáze:	OpenAIRE
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