Ho-Ming Yeh This email address is being protected from spambots. You need JavaScript enabled to view it.1

1Energy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Tamsui, Taiwan 251, R.O.C.


 

Received: September 7, 2010
Accepted: March 11, 2011
Publication Date: December 1, 2011

Download Citation: ||https://doi.org/10.6180/jase.2011.14.4.08  


ABSTRACT


The effect of mass transfer in parallel-flow rectangular dialyzers with internal recycle has been investigated. In contrast to the same size device without recycle, considerable improvement in performance is achievable if one of the flow channels, either retentate phase or dialysate phase, is divided into two subchannels of same width (w/2) with one performed as the operating subchannel and the other as the reflux cochannel, which provides the increase in the fluid velocity, resulting in reduction of mass-transfer resistance. The improvement by recycle operation increases both the flow rate of liquid and reflux ratio with negligible amount of hydraulic-dissipated energy.


Keywords: Mass Transfer, Rectangular Dialyzer, Internal Reflux, Parallel Flow


REFERENCES


  1. [1] Kessler, S. B. and Klein, E., In Ho, W. S. W. and Sirkar, K. K. (Eds.), “Membrane Handbook,” Part IV: Dialysis, Chapter 11: Definition (pp. 163166), New York: Chapman and Hall (1992).
  2. [2] Mulder, M., “Basic Principle of Membrane Technology,” London: Kluwer (1991).
  3. [3] On, S. J., Moon, S. H. and Davis, T., “Effects of Metal Ions on Diffusion Dialysis of Inorganic Acids,” J. Membr. Sci., Vol. 169, pp. 95105 (2000).
  4. [4] Palaty, Z. and Zakova, A., “Transport of Sulfuric Acid through Anion-Exchange Membrane NEOSEPTAAFN,” J. Membr. Sci., Vol. 119, pp. 183190 (1996).
  5. [5] Palaty, Z., Zakova, A. and Dolecek, P., “Modeling the Transport of Cl Ions through the Anion Exchanger Membrane NEOSEPTA-AFN; Systems HCl/Membrane/H2O and HCl-FeCl3/Membrane/H2O,” J. Membr. Sci., Vol. 165, pp. 237249 (2000).
  6. [6] Kolev, S. D., W. E. and van der Linden, “Influence of the Main Parameters of a Parallel-Plate Dialyzer under Laminar Flow Conditions,” Analytic Chimica Acta, Vol. 257, pp. 317329 (1992).
  7. [7] Kolev, S. D., W. E. and van der Linden, “Analysis of Transient Laminar Mass Transfer in a Parallel-Plate Dialyzer,” Analytic Chimica Acta, Vol. 257, pp. 331 342 (1992).
  8. [8] Jacob, M., Heat Transfer, New York: Wiley, pp. 230 260 (1957).
  9. [9] Yeh, H. M., Cheng, T. W. and Chen, Y. J., “Analysis of Dialysis Coupled with Ultrafiltration in Cross-Flow Membrane Modules,” J. Membr. Sci., Vol. 134, pp. 151162 (1997).
  10. [10] Yeh, H. M., Cheng, T. W. and Chen Y. J., “Mass Transfer for Dialysis with Ultrafiltration Flux Declined in Cross-Flow Membrane Modules,” J. Chem. Eng. Japan, Vol. 33, pp. 440448 (2000).
  11. [11] Yeh, H. M. and Chang Y. H., “Mass Transfer for Dialysis through Parallel-Flow Double-Pass Rectangular Membrane Modules,” J. Membr. Sci., Vol. 260, pp. 19 (2005).
  12. [12] Goto, S., P. D. and Gas Pillo, “Effect of Static Mixer on Mass Transfer in Draft Tube Bubble Column and in External Loop Column,” Chem. Eng. Sci., Vol. 47, pp. 35333539 (1992).
  13. [13] Ho, C. D., Yeh, H. M. and Sheu, W. S., “The Analytical Studies of Heat and Mass Transfer through a ParallelPlate Channel with Recycle,” Int. J. Heat Mass Transfer, Vol. 41, pp. 25892599 (1998).
  14. [14] Yeh, H. M., Tsai, S. W. and Chiang, C. L., “Recycle Effects on Heat and Mass Transfer through a ParallelPlate Channel,” AIChE J., Vol. 33, pp. 17431746 (1987).
  15. [15] Yeh, H. M., “Numerical Analysis of Mass Transfer in Double-Pass Parallel-Plate Dialyzers with External Recycle,” Computers Chem. Eng., Vol. 33, pp. 815 821 (2009).
  16. [16] Poter, M. C., “Handbook of Industrial Membrane Technology,” New Jersey: Noyes Publications, pp. 1 3, 175 (1990).
  17. [17] Geankoplis, C. J., “Transport Processes and Unit Operations,” Massachusetts: Allyn and Baco, Inc., p. 394 (1983).