Alternate operating methods for improving the performance of continuous stirred tank reactors

Chemical Engineering Research and Design

Volumn 84, Issue 7 A, 2006, Pages 569-582

  Aubin, Joelle ^a   Kresta, S M ^b   Bertrand, J ^a   Xuereb, C ^a   Fletcher, D F ^c  

^a LABORATOIRE DE GÉNIE CHIMIQUE   (France)

^b UNIVERSITY OF ALBERTA   (Canada)

^c UNIVERSITY OF SYDNEY   (Australia)

Author keywords

CFD; CSTR; Mixel TT; Mixing; Stirred tank

Indexed keywords

AXIAL FLOW; CHEMICAL REACTORS; FLOW PATTERNS; IMPELLERS; INTAKE SYSTEMS; JETS; TANKS (CONTAINERS);

CONTINUOUS STIRRED TANK REACTOR; INLET FEED JETS; MULTIPLE FEED INLETS;

COMPUTATIONAL FLUID DYNAMICS;

AXIAL FLOW; CHEMICAL REACTORS; COMPUTATIONAL FLUID DYNAMICS; FLOW PATTERNS; IMPELLERS; INTAKE SYSTEMS; JETS; TANKS (CONTAINERS);

EID: 33746146403     PISSN: 02638762     EISSN: None     Source Type: Journal    
DOI: 10.1205/cherd.05216     Document Type: Article

References (26)

1. ANSYS, 2004, ANSYS CFX5.6, ANSYS Europe, Gemini Building, Harwell, Didcot, Oxfordshire, UK. See also www.ansys.com/cfx.
2. Aubin, J., 2001, Mixing capabilities of down- and up-pumping axial flow impellers in single phase and gas-liquid systems: experimental and CFD studies, PhD thesis, INPT France and The University of Sydney, Australia.
3. Aubin, J., Mavros, P., Fletcher, D.F., Bertrand, J. and Xuereb, C., 2001, Effect of axial agitator configuration (up-pumping, down-pumping, reverse rotation) on flow patterns generated in stirred vessels, Chem Eng Res Des, 79(A): 845-856.
4. Aubin, J., Le Sauze, N., Bertrand, J., Fletcher, D.F. and Xuereb, C., 2004, PIV measurements of flow in an aerated tank stirred by a down- and an up-pumping axial flow impeller, Exp Therm Fluid Sci, 28(5), 447-456.
5. Baudou, C., 1997, Agitation par des systèmes axiaux simples ou multietagés. Obtention de l'hydrodynamique par vélocimétrie laser à effet doppler, PhD thesis, INP Toulouse, France.
6. Bittorf, K.J. and Kresta, S.M., 2000, Active volume of mean circulation for stirred tanks agitated with axial impellers, Chem Eng Sci, 55(7), 1325-1335.
7. Bhattacharya, S. and Kresta, S.M., 2004, Surface feed with minimum by-product formation for competitive reactions, Chem Eng Res Des, 82(A): 1153-1160.
8. Bourne, J.R. and Hilber, C.P., 1990, The productivity of micromixing-controlled reactions: effect of feed distribution in stirred tanks, Chem Eng Res Des, 68(A): 51-56.
9. Chapple, D., Kresta, S.M., Wall, A. and Afacan, A., 2002, The effect of impeller and tank geometry on power number for a pitched blade turbine, Chem Eng Res Des, 80(A): 364-372.
10. Hari-Prajitno, D., Mishra V.P., Takenaka, K., Bujalski, W., Nienow, A.W. and McKemmie, J., 1998, Gas-liquid mixing studies with multiple up-and down-pumping hydrofoil impellers: power characteristics and mixing time, Can J Chem Eng, 76(10): 1056-1068.
11. Jaworski, Z., Nienow, A.W., Koustsakos, E., Dyster, K. and Bujalski, W., 1991, An LDA study of turbulent flow in a baffled vessel agitated by a pitched blade turbine, Chem Eng Res Des, 69(A): 313-320.
12. Jaworski, Z., Dyster, K.N. and Nienow, A.W., 2001, The effect of size, location and pumping direction of pitched blade tubine impellers on flow patterns: LDA measurements and CFD predictions. Chem Eng Res Des, 79(A): 887-894.
13. Khopkar, A.R., Mavros., P., Ranade, V.V. and Bertrand, J., 2004, Simulation of flow generated by an axial-flow impeller: batch and continuous operation, Chem Eng Res Des, 82(A): 737-751.
14. Kresta, S.M. and Wood, P.E., 1993, The mean flow field produced by a 45° pitched blade turbine: changes in circulation pattern due to off bottom clearance, Can J Chem Eng, 71: 45-53.
15. Luo, J.Y., Gosman, A.D., Issa, R.I., Middleton, J.C. and Fitzgerald, M.K., 1993, Full flow field computation of mixing in baffled stirred vessels, Chem Eng Res Des, 71(A): 342-344.
16. Luo, J.Y., Issa, R.I. and Gosman, A.D., 1994, Prediction of impeller-induced flows in mixing vessels using multiple frames of reference, 8th European Conf on Mixing, Cambridge, 138; IChemE Symposium, 549.
17. Mavros, P., Xuereb, C. and Bertrand, J., 1996, Determination of 3-D flow fields in agitated vessels by laser Doppler velocimetry: Effect of impeller type and liquid viscosity on liquid flow patterns, Chem Eng Res Des, 74(A): 658-668.
18. Mavros, P., Naude, I., Xuereb, C. and Bertrand, J., 1997, Laser Doppler velocimetry in agitated vessels: effect of continuous liquid stream on flow patterns, Chem Eng Res Des, 75(A): 763-776.
19. Mavros, P., Xuereb, C., Fort, I. and Bertrand, J., 2002, Investigation by laser Doppler velocimetry of the effects of liquid flow rates and feed positions on the flow patterns induced in a stirred tank by an axial-flow impeller, Chem Eng Sci, 57: 3939-3952.
20. Mishra, V.P., Dyster, K.N., Jaworski, Z., Nienow, A.W. and McKemmie, J., 1998, A study of an up- and a down-pumping wide blade hydrofoil impeller; Part I. LDA measurements, Can J Chem Eng, 76: 577-588.
21. Nienow, A.W., 1996, Gas-liquid mixing studies: A comparison of Rushton turbines with some modern impellers, Chem Eng Res Des, 74(A): 417-423.
22. Nienow, A.W., 1999, The versatility of up-pumping wide-blade hydrofoil agitators, Proc 3rd Inter Symp on Mixing In Industrial Processes, Osaka, Japan, 173-180.
23. Oldshue, J.Y., 1983, Fluid Mixing Technology (McGraw-Hill Pub. Co., New York, NY, USA).
24. Pope, S.B., 2000, Turbulent Flows (Cambridge University Press, Cambridge, UK).
25. Rajaratnam, N., 1976, Developments in Water Science: Turbulent Jets (Elsevier Scientific Publishing Co., New York, NY, USA).
26. Zannoud, N., Giraud, P., Costes, J. and Bertrand, J., 1991, Local laser measurements of velocities and concentration in two continuous systems: A tubular jet-stirred reactor and a stirred vessel, Proceedings of 7th European Conf on Mixing, Brugge, 18-20 Sept, 173-180, Antwerpen: EFCE-KVIV.