1. bookVolume 17 (2015): Issue 1 (March 2015)
Journal Details
License
Format
Journal
eISSN
1899-4741
First Published
03 Jul 2007
Publication timeframe
4 times per year
Languages
English
access type Open Access

A novel approach for calculating packed column height based on new correlation of mass transfer coefficient

Published Online: 25 Mar 2015
Volume & Issue: Volume 17 (2015) - Issue 1 (March 2015)
Page range: 48 - 54
Journal Details
License
Format
Journal
eISSN
1899-4741
First Published
03 Jul 2007
Publication timeframe
4 times per year
Languages
English
Abstract

The calculation of column’s height plays an important role in packed columns precise design. This research is based on experimentally measurement of mass transfer coefficients in different heights of packed column to predict its height. The objective of presented work is to introduce a novel conceptual method to predict column height via new correlation for mass transfer coefficient. As the mass transfer coefficient is decreased with increase of column height, the HTU’s are not constant figures along the column so this new approach is called increasing HTU’s. The results of the proposed idea were compared with other correlations and the conventional method i.e. constant HTU’s. Since the results are in very good agreement with experimental data comparing to conventional method, it seems this approach can be a turning point in design of all differential columns like packed columns. Making use of this method is suggested for design of differential columns.

Keywords

1. Rahbar Kelishami, A., Bahmanyar, H. & Moosavian, M.A. (2011). Prediction of mass transfer coefficients in regular packed columns, Chem. Eng. Communications 198:8, 1041-1062. DOI: 10.1080/00986445.2011.545305.10.1080/00986445.2011.545305Search in Google Scholar

2. Ku mar, A. & Hartland, S. (1999). Co rrelations for prediction of mass transfer coefficients in single drop systems and liquid-liquid extraction columns, Institution of Chemical Engineers, Trans. IChemE. 77, Part A, 372-384. DOI: 10.1205/026387699526359.10.1205/026387699526359Search in Google Scholar

3. Ne wman, A.B. (1931). Th e dr ying of porous solids: Diffusions and surface emission equations, Tr ans. Am. Inst. Chem. Eng. 27, 203-220.Search in Google Scholar

4. Kronig, R. & Brink, J.C. (1950). On the theory of extraction from falling drops, Ap pl. Sci. Res. A2, 142-154. DOI: 10.1007/BF00411978.10.1007/BF00411978Search in Google Scholar

5. Handlos, A.E. & Baron, T. (1957). Mass and heat transfer from drops in liquid-liquid extraction, AIChE J. 3, 127-136. DOI: 10.1002/aic.690030121.10.1002/aic.690030121Search in Google Scholar

6. Calderbank, P.H. & Korchinski, I.J.O. (1956) Circulation in liquid drops: a heat transfer study, Chem. Eng. Sci. 6, 65-78. DOI: 10.1016/0009-2509(56)80012-2.10.1016/0009-2509(56)80012-2Search in Google Scholar

7. Rose, P.M. & Kintner, R.C. (1966). Mass transfer from large oscillating drops, AIChE J. 12, 530-534. DOI: 10.1002/ aic.690120325.Search in Google Scholar

8. Johnson, A.I. & Hamielec, A.E. (1960). Mass transfer inside drops, AIChE J. 6 145-149. DOI: 10.1002/aic.690060128.10.1002/aic.690060128Search in Google Scholar

9. Boyadzhiev, L., Elenkov, D. & Kyuchukov, G. (1969) On Liquid-Liquid Mass Transfer inside Drops in a Turbulent Flow Field, Can. J. Chem. Eng. 47 42-44. DOI: 10.1002/ cjce.5450470107.Search in Google Scholar

10. Steiner, L. (1986). Mass-Transfer Rates from Single Drops and Drop Swarms, Chem. Eng. Sci. 41(8), 1979-1986. DOI: 10.1016/0009-2509.Search in Google Scholar

11. Temos, J., Pratt, H.R.C. & Stevens, G.W. (1993). Comparison of tracer and bulk mass transfer coefficients for droplets, Proc. ISEC, Elsevier, Amsterdam, 93, 1770-1777. DOI: 10.1016/0009-2509(95)00224-3.10.1016/0009-2509(95)00224-3Search in Google Scholar

12. Soltanali, S., Ziaie-Shirkolaee, Y., Amoabediny, Gh., Rashedi, H., Sheikhi, A. & Chamanrokh, P. (2009). Hydrodynamics and mass transfer performance of rotating sieved disc contactors used for reversed micellar extraction of protein, Chem. Eng. Sci. 64, 2301-2306. DOI: 10.1016/j.ces.2009.02.005.10.1016/j.ces.2009.02.005Search in Google Scholar

13. Lévêque, J., Rouzineau, D., Prévost, M. & Meyer, M. (2009). Hydrodynamic and mass transfer efficiency of ceramic foam packing applied to distillation, Chem. Eng. Sci. 64, 2607-2616. DOI: 10.1016/j.ces.2009.02.010.10.1016/j.ces.2009.02.010Search in Google Scholar

14. Perry, R.H., Green, D.W. & Maloney, J.O. (1997) Perrys chemical engineers handbook (7th ed.), NY: McGraw-Hill.Search in Google Scholar

15. Coulson, J.M. & Richardson, J.F. (1991). Chemical Engineering Vol. 2, 5th ed., p. 639. (Pergamon Press, Oxford.). Search in Google Scholar

Recommended articles from Trend MD

Plan your remote conference with Sciendo