Studies on transfer processes in mixing vessels: Hydrodynamic of the modified Rushton turbine agitators in gas-liquid dispersions

Chemical Engineering Journal and the Biochemical Engineering Journal

Volumn 61, Issue 2, 1996, Pages 83-93

  Roman, R V ^a   Tudose, R Z ^b  

^a NATIONAL INSTITUTE FOR CHEMICAL PHARMACEUTICAL RESEARCH AND DEVELOPMENT   (Romania)

^b GHEORGHE ASACHI TECHNICAL UNIVERSITY OF IASI   (Romania)

Author keywords

Gas liquid dispersions; Mixing vessels; Rushton turbine; Transfer processes

Indexed keywords

AGITATORS; DISPERSIONS; GAS/LIQUID; MASS TRANSFER; MIXING(GAS/LIQUID; RUSHTON TURBINES;

DISPERSIONS; ELECTRIC DRIVES; ELECTRIC MOTORS; ENERGY CONSERVATION; ENERGY DISSIPATION; HYDRODYNAMICS; MIXING; TURBINES; TURBOMACHINE BLADES;

GAS HANDLING CAPACITY; GAS LIQUID DISPERSIONS; MIXING VESSELS; RUSHTON TURBINE; TRANSFER PROCESSES; TURBINE AGITATORS;

CHEMICAL EQUIPMENT;

EID: 0029673896     PISSN: 09230467     EISSN: None     Source Type: Journal    
DOI: 10.1016/0923-0467(95)03033-6     Document Type: Article

References (30)

1. M.M.C.G. Warmoeskerken, Gas-liquid dispersing characteristics of turbine agitators, Ph.D. Thesis, University of Delft, 1986.
2. J.M. Smith, Dispersion of gases in liquids. The hydrodynamics of gas dispersion in low viscosity liquids, in J.J. Ulbrecht and O.K. Patterson (eds.), Mixing of Liquids by Mechanical Agitation, Gordon and Breach, New York, 1985, p. 139.
3. C.M. Chapman,A.W. Nienow,M. Cookeand J.C. Middleton,Particle-gas-liquid mixing in stirred vessels. Part II: Gas-liquid mixing, Chem. Eng. Res. Des., 61 (1983) 82.
4. R. Mann, Gas-liquid stirred vessel mixers: towards a unified theory based on networks-of-zones, Chem. Eng. Res. Des., 64 (1983) 23.
5. A.W. Nienow and J.J. Ulbrecht, Gas-liquid mixing and mass transfer in high viscosity liquids, in J.J. Ulbrecht and O.K. Patterson (eds,), Mixing of Liquids by Mechanical Agitation, Gordon and Breach, New York, 1985, p. 203.
6. L.R. Bowen, Unravelling the mysteries of shear-sensitive mixing systems, Chem. Eng., 9 (1986) 55.
7. J.H. Rushton, E.W. Costich and J. Everett, Power characteristics of mixing impellers, Chem. Eng. Prog., 46 (1950) 467.
8. M.M.C.G. Warmoeskerken and J.M. Smith, The hollow blade agitator for dispersion and mass transfer, Chem. Eng. Res. Des., 67 (1989) 193.
9. K. van't Riet, Turbine agitator hydrodynamics and dispersion performance, Ph.D. Thesis, University of Delft, 1975.
10. M. Greaves and M. Barigou, Estimation of gas hold-up and impeller power in a stirred vessel reactor, Inst. Chem. Eng. Symp. Sei:, 108 (1987)235.
11. A.W. Nienow, L. Huoxing, W. Haozhung, K.V. Allsford, D. Cronin and V. Hudkova, The use of large ring spargers to improve the performance of fermenters agitated by single and multiple standard Rushton turbines, Proc. 2nd Int. Conf. on Bioreactor Fluid Dynamics, Cambridge, 1988, 1988, p. 159.
12. R.V. Roman and M. Gavrilescu, Hydrodynamic of a gas-liquid vessel stirred with Rushton turbines in Newtonian and non-Newtonian systems, Hung. J. Ind. Chem., 22 (1994) 87.
13. N.M.G. Oosterhuis, Scale-up of bioreactors; a scale-down approach, Ph.D. Thesis, University of Delft, 1984.
14. M. Nocentini, F. Magelli, G. Pasquali and D. Fajner, A fluid-dynamic study of a gas-liquid, non-standard vessel stirred by multiple impellers, Chem.Eng.J., 57(1988)53.
15. M. Nocentini, F. Magelli and G. Pasquali, On the modelling of the gas behaviour of gas-liquid vessels stirred with multiple impellers, Proc. 6th Eur. Conf. on Mixing, British Hydrodynamics Research Association, Cranfield, 1988, p. 337.
16. M.M.C.G. Warmoeskerken and J.M. Smith, Flooding of disc turbines in gas-liquid dispersions: anew description ofthephenomenon, Chem. Eng. Sei., 40(1985)2063.
17. M. Nocentini, F. Magelli and G. Pasquali, Some comments on the flooding-loading transition for gas-liquid vessels stirred with Rushton turbines, Chem. Eng. Res. Des., 66 (1988) 378.
18. V. Abrardi, G. Rovero, G. Baldi, S. Sicardi and R. Conti, Hydrodynamics of a gas-liquid reactor stirred with a multi-impeller system, Trans. Inst. Chem. Eng. A, 68 (1990) 516.
19. J.Y. Oldshue and N.R. Herbst, A Guide to Fluid Mixing, Mixing Equipment Company, Rochester, NY, 1990.
20. A. Sauciuc, R.V. Roman, M. Gavrilescu, A. Pintilie and A. Pascal, Agitator tip turbinǎ deschisǎ pentru sisteme heterogene, Brevet RO 99730, 1989.
21. [21 ] M. Gavrilescu, R.V. Roman, A. Sauciuc, A. Pintilie, A. Pascal and M. Macoveanu, Optimizarea condijiilor de transfer de masǎ al oxigenului intr-un bioreactor, Rev. Chim., 40 ( 1989) 921.
22. R.V. Roman and M. Gavrilescu, Oxygen transfer efficiency in the biosynthesis of antibiotics in bioreactors with a modified Rushton turbine agitator, Acta Biotechnol, 14 (1994) 181.
23. R.V. Roman and R.Z. Tudose, Studies on transfer processes in mixing vessels. Power consumption of the modified Rushton turbine agitators in single phase system, unpublished results, 1995.
24. R.V. Roman and R.Z. Tudose, Studies on transfer processes in mixing vessels. Power consumption of the modified Rushton turbine agitators in gas-liquid system, unpublished results, 1995.
25. A.W. Nienow, D.J. Wisdom and J.C. Middleton, Effects of scale and geometry on flooding, recirculation and power consumption in gassed stirred vessels, Proc. 2nd Eur. Conf. on Mixing, British Hydromechanics Research Association, Cranfield, 1977, p. F1.
26. D.J. Gray, R.E. Treybal and S.M. Barnett, Mixing of single and two phase systems: power consumption of impellers, AIChEJ., 28 ( 1982) 195.
27. T.A. Post, Geometrical influences on local and total mass and heat transfer in an agitated tank, Ph.D. Thesis, Institute of Technology, Zurich, 1983.
28. W. Bujalski, A.W. Nienow, S. Chatwin and M. Cooke, The dependency on scale of power numbers of Rushton disk turbines, Chem. Eng. Sci., 42(1987)317.
29. E.A. Bratu, Operatii Unitare în Industria Chimicǎ, Vol. 2, Editura Technicǎ, Bucharest, 1985, p. 20.
30. R.V. Roman, M. Gavrilescu and V. Efimov, Evaluation of power consumption for Newtonian system mixing with a various number of Rushton turbines, Hung. J. Ind. Chem., 20 (1992) 155.