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Separations
A dimensionless model for predicting the mass-transfer area of structured packing
Article first published online: 29 JUN 2010
DOI: 10.1002/aic.12345
Copyright © 2010 American Institute of Chemical Engineers (AIChE)
1547-5905/asset/cover.gif?v=1&s=3d1276953963f4e484c1215cd7884fd5fbdaf6ee "AIChE Journal")
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How to Cite
Tsai, R. E., Seibert, A. F., Eldridge, R. B. and Rochelle, G. T. (2011), A dimensionless model for predicting the mass-transfer area of structured packing. AIChE J., 57: 1173–1184. doi: 10.1002/aic.12345
Publication History
- Issue published online: 12 APR 2011
- Article first published online: 29 JUN 2010
- Accepted manuscript online: 29 JUN 2010 12:00AM EST
- Manuscript Revised: 11 JUN 2010
- Manuscript Received: 7 APR 2010
Funded by
- Luminant Carbon Management Program
- Process Science and Technology Center
- Industrial Associates Program for CO2 Capture by Aqueous Absorption
- Abstract
- Article
- References
- Cited By
Keywords:
- absorption;
- mass transfer;
- structured packing;
- effective area
Abstract
The mass-transfer area of nine structured packings was measured in a 0.427 m ID column via absorption of CO2 from air into 0.1 kmol/m3 NaOH. The mass-transfer area was most strongly related to the specific area (125–500 m2/m3), and liquid load (2.5–75 m3/m2·h). Surface tension (30–72 mN/m) had a weaker but significant effect. Gas velocity (0.6–2.3 m/s), liquid viscosity (1–15 mPa·s), and flow channel configuration had essentially no impact on the mass-transfer area. Surface texture (embossing) increased the effective area by 10% at most. The ratio of mass-transfer area to specific area (ae/ap) was correlated within the limits of ±13% for the entire experimental database 
. © 2010 American Institute of Chemical Engineers AIChE J, 2010