On the effect of gap size between baffle outer diameter and tube inner diameter on the mixing characteristics in an oscillatory-baffled column

Journal of Chemical Technology and Biotechnology

Volumn 74, Issue 6, 1999, Pages 587-593

  Ni, Xiongwei ^a   Stevenson, Colin C ^a  

^a HERIOT WATT UNIVERSITY   (United Kingdom)

Author keywords

Axial dispersion coefficient; Gap size; Mixing time; Oscillatory baffled column

Indexed keywords

CHEMICAL EQUIPMENT; DISPERSIONS; MATHEMATICAL MODELS; MIXING;

AXIAL DISPERSION COEFFICIENT; OSCILLATORY-BAFFLED COLUMNS (OBC);

BIOCHEMISTRY;

BAFFLE; COLUMN; MIXING;

ARTICLE; CHEMICAL ENGINEERING; DISPERSION; OSCILLATION; TIME; TUBE;

EID: 0032999064     PISSN: 02682575     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1097-4660(199906)74:6<587::AID-JCTB87>3.0.CO;2-C     Document Type: Article

References (29)

1. Levenspiel O, Chemical Reaction Engineering, John Wiley & Sons, New York (1972).
2. Smith JM, Chemical Engineering Kinetics, McGraw-Hill, London (1981).
3. Cooper AR and Jeffreys GV, Chemical Kinetics and Reactor Design, Olive & Boyd, Edinburgh (1971).
4. Hafez MM, Baird MHI and Nirdosh I, Flooding in axial dispersion in reciprocating plate extraction columns. Can J Chem Eng 57:150-158 (1979).
5. Godfrey JC, Houlton DA, Marley ST, Marrocchelli A and Slater MJ, Axial dispersion study in sieve plate columns. Chem Eng Res Des 66:445-451 (1985).
6. Ingham J, Slater MJ and Retamales J, Single phase axial mixing studies in pulsed sieve plate liquid-liquid extraction columns. Trans IChemE 73:492-496 (1995).
7. Taylor G, Dispersion of soluble matter in a solvent flowing slowly through a tube. Proc R Soc A219:186-203 (1953).
8. Aris R, On the dispersion of a solute in a fluid flowing through a tube. Proc R Soc A235:67-77 (1956).
9. Levenspiel O and Smith KW, Notes on the diffusion-type model for the longitudinal mixing of fluids in flow. Chem Eng Sci 6:227-233 (1957).
10. Sobey IJ, On flow through furrowed channels. Pt. 1. J Fluid Mech 96:1-26 (1980).
11. Ralph ME, Oscillatory flows in wavy-walled tubes. J Fluid Mech 168:515-540 (1986).
12. Goebel JC, Booij K and Fortuin JMH, Axial dispersion in single-phase flow in pulsed packed columns. Chem Eng Sci, 41:3197-3203 (1986).
13. Vrentas JS and Vrentas CW, Dispersion in laminar tube flow at low Peclet number or short times. AIChE J 34:1423-1430 (1988).
14. Howes T, On the dispersion of unsteady flow in baffled tubes, PhD Thesis, University of Cambridge (1988).
15. Mackley MR and Ni X, Mixing and dispersion in a baffled tube for steady laminar and pulsatile flow. Chem Eng Sci 46:3139-3151 (1991).
16. Mackley MR and Ni X, Experimental fluid dispersion measurements in periodic baffled tube arrays. Chem Eng Sci 48:3293-3305 (1993).
17. Brunold CR, Hunns JCB, Mackley MR and Thompson JW, Experimental observations on flow patterns and energy losses for oscillatory flows in ducts with sharp edges. Chem Eng Sci 44:1227-1244 (1989).
18. Dickens AW, Mackley MR and Williams HR, Experimental residence time distribution measurements for unsteady flow in baffled tubes. Chem Eng Sci 44:1471-1479 (1989).
19. Hewgill MR, Mackley MR, Pandit AB and Pannu SS, Enhancement of gas-liquid mass transfer using oscillatory flow in a baffled tube. Chem Eng Sci 48:799-809 (1993).
20. Mackley MR, Smith KB and Wise NP, The mixing and separation of particle suspensions using oscillatory flow in baffled tubes. Trans IChemE, 71(A):649-656 (1993).
21. Ni X and Mackley MR, Chemical reaction in batch pulsatile flow and stirred tank reactors. The Chem Eng J, 52:107-114 (1993).
22. Ni X, Gao S, Cumming RH and Pritchard DW, A comparative study of mass transfer in yeast for a batch pulsed baffled bioreactor and a stirred tank fermenter. Chem Eng Sci 50:2127-2136 (1995).
23. Ni X and Gao S, Scale up correlation for mass transfer coefficients in pulsed baffled reactors. The Chem Eng J, 63:157-166 (1996).
24. Ni X, Brogan G, Struthers A, Bennett DC and Wilson SF, A systematic study of the effect of geometrical parameters on mixing time in oscillatory baffled columns. Trans IChemE, 76:635-642 (1998).
25. Emin Erdogan M and Chatwin PC, The effects of curvature and buoyancy on the laminar dispersion of solute in a horizontal tube. J Fluid Mech, 29:465-484 (1967).
26. Holmes TL, Kar AE and Baird MHI, Effect of unfavorable continuous phase density gradient on axial mixing. AIChE J, 37:360-366 (1991).
27. Aravamudan K and Baird MHI, Effect of unstable density gradients on back-mixing in a reciprocating plate column. AIChEJ 42:2128-2140 (1996).
28. Cussler EL, Diffusion, Mass Transfer in Fluid Systems, Cambridge University Press (1984).
29. Harnby N, Edwards MF and Nienow AW, Mixing in the Process Industries, 2nd Ed., Butterworth-Heinemann Ltd (1992).