Analysis of the Gas Behavior in Sparged Reactors Stirred with Multiple Rushton Turbines: Tentative Model Validation and Scale-up

Industrial and Engineering Chemistry Research

Volumn 37, Issue 4, 1998, Pages 1528-1535

  Nocentini, Massimo ^a   Pinelli, Davide ^a   Magelli, Franco ^a  

^a UNIVERSITY OF BOLOGNA   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

ASPECT RATIO; COALESCENCE; CORRELATION METHODS; ELECTROLYTES; FLUID DYNAMICS; MATHEMATICAL MODELS; TURBINES; WATER;

AXIAL DISPERSION MODEL; GAS LIQUID REACTORS; RUSHTON TURBINE;

CHEMICAL REACTORS;

EID: 0032046842     PISSN: 08885885     EISSN: None     Source Type: Journal    
DOI: 10.1021/ie970555b     Document Type: Article

References (30)

1. Abrardi, V.; Rovero, G.; Sicardi, S.; Baldi, G.; Conti, R. Sparged vessels agitated by multiple turbines. Proceedings of the 6th European Conference Mixing, Pavia, May 24-26, 1988; BHRA: Cranfield, 1988; pp 329-336.
2. Abrardi, V.; Rovero, G.; Baldi, G.; Sicardi, S.; Conti, R. Hydrodynamics of a gas-liquid reactor stirred with a multi-impeller system. Trans. Inst. Chem. Eng. 1990, 68 Part A, 516-522.
3. Breman, B. B.; Beenackers, A. A. C. M.; Bourma, M. J. Flow regimes, gas hold-up and axial gas mixing in the gas-liquid multi-stage agitated contactor. Chem. Eng. Sci. 1995, 50, 2963-2982.
4. Brenner, H. The diffusion model of longitudinal mixing in beds of finite length. Numerical values. Chem. Eng. Sci. 1962, 17, 229-243.
5. Bröring, S.; Fischer, J.; Korte, T.; Sollinger, S.; Lübbert, A. Flow structure of the dispersed gas phase in real multiphase chemical reactors investigated by a new ultrasound-Doppler technique. Can. J. Chem. Eng. 1991, 69, 1247-1256.
6. Gal-Or, B.; Resnick, W. Gas residence time in agitated gas-liquid contactors. Ind. Eng. Chem. Process Des. Dev. 1966, 5, 15-19.
7. Hanhart, J.; Kramers, H.; Westerterp, K. R. The residence time distribution of the gas in an agitated gas-liquid contactor. Chem. Eng. Sci. 1963, 18, 503-509.
8. Hartland, S.; Mecklenburgh, J. C. The concept of backmixing. Chem. Eng. Sci. 1968, 23, 186-187.
9. La measurement in viscous gas-liquid systems. Biotechnol. Bioeng. 1980, 22, 1945-1956.
10. Hudcova, V.; Machon, V.; Nienow, A. W. Gas-liquid dispersion with dual Rushton turbine impellers. Biotechnol. Bioeng. 1989, 34, 617-628.
11. Joseph, S.; Shah, Y. T. Errors caused by tracer solubility in the measurement of gas-phase axial dispersion. Can. J. Chem. Eng. 1986, 64, 380-386.
12. Klinkenberg, A. The concept of backmixing. Chem. Eng. Sci. 1968, 23, 92.
13. Linek, V.; Moucha, T.; Sinkule, J. Gas-liquid mass transfer in vessels stirred with multiple impellers-I. Gas-liquid mass transfer characteristics in individual stages. Chem. Eng. Sci. 1996, 51, 3203-3212.
14. Machon, V.; Vlcek, V.; Nienow, A. W.; Solomon, J. Some effects of pseudoplasticity on hold-up in aerated, agitated vessels. Chem. Eng. J. 1980, 19, 67-74.
15. Magelli, F.; Fajner, D.; Nocentini, M.; Pasquali, G.; Ditl, P.; Marisko, V. Solids concentration distribution in slurry reactors stirred with multiple axial impellers. Chem. Eng. Process. 1991, 29, 27-32.
16. Manikowski, M.; Bodemeier, S.; Lübbert, A.; Bujalski, W.; Nienow, A. W. Measurement of gas and liquid flows in stirred tank reactors with multiple agitators. Can. J. Chem. Eng. 1994, 72, 769-781.
17. La measurement and models comparison. Trans. Inst. Chem. Eng. 1990, 68 Part A, 287-294.
18. Nocentini, M.; Pasquali, G.; Magelli, F. The influence of tracer solubility on gas-phase RTD in gas-liquid stirred equipment. Proceedings Colloque Agitation Mécanique, Toulouse, June 11-12, 1986; PROGEC: Toulouse, 1986; pp 5.7-5.14.
19. Nocentini, M.; Magelli, F.; Pasquali, G. On the modelling of the gas behaviour of gas-liquid vessels stirred with multiple impellers. Proceedings of the 6th European Conference on Mixing; Pavia, May 24-26, 1988; BHRA: Cranfield, 1988a; pp 337-344.
20. Nocentini, M.; Magelli, F.; Pasquali, G.; Fajner, D. A fluid dynamic study of a gas-liquid, non-standard vessel stirred with multiple impeller. Chem. Eng. J. 1988b, 37, 53-59.
21. Pinelli, D.; Nocentini, M.; Magelli, F. Hold-up in low viscosity gas-liquid systems stirred with multiple impellers. Proceedings of the 8th European Conference on Mixing; Cambridge, Sept 21- 23, 1994; Inst. Chem. Eng. Symp. Ser. 136; Institution of Chemical Engineers: Rugby, 1994; pp 81-88.
22. Pinelli, D.; Nocentini, M.; Magelli, F. Hold-up in low viscosity gas-liquid systems stirred with multiple impellers. Proceedings of the 8th European Conference on Mixing; Cambridge, Sept 21- 23, 1994; Inst. Chem. Eng. Symp. Ser. 136; Institution of Chemical Engineers: Rugby, 1994; pp 81-88.
23. Popovic, M.; Palexiou, A.; Reuss, M. Gas residence time distribution in stirred tank bioreactors. Chem. Eng. Sci. 1983, 38, 2015-2025.
24. Rovero, G.; Sicardi, S.; Baldi, G.; Osella, M.; Conti, R. Hydrodynamics of the gas phase in stirred gas-liquid contactors. Chem. Eng. J. 1987, 36, 161-167.
25. Smith, J. M.; Warmoeskerken, M. M. C. G.; Zeef, E. Flow conditions in vessels dispersing gases in liquids with multiple impellers. In Biotechnology Processes: Scale-up and Mixing, Ho, C. S., Oldshue, J. Y., Eds.; AIChE: New York, 1987; pp 107-115.
26. Svihla, C. K.; Berson, R. E.; Hanley, T. R. Modeling mass transfer and gas phase mixing in the reactive absorption of ozone. Proceedings of the 8th European Conference on Mixing; Cambridge, September 21-23, 1994; Inst. Chem. Eng. Symp. Ser. 136; Institution of Chemical Engineers: Rugby, 1994; pp 227-234.
27. Svihla, C. K.; Berson, R. E.; Hanley, T. R. Modeling mass transfer and gas phase mixing in the reactive absorption of ozone. Proceedings of the 8th European Conference on Mixing; Cambridge, September 21-23, 1994; Inst. Chem. Eng. Symp. Ser. 136; Institution of Chemical Engineers: Rugby, 1994; pp 227-234.
28. Svihla, C. K.; Berson, R. E.; Hanley, T. R. Gas-liquid mass transfer in tall tanks. AIChE Symp. Ser. 1995, 305, 91, 161-165.
29. Theijert, M. P. G.; Oyevaar, M. H.; Kuper, W. J.; Westerterp, K. R. Residence time distribution of the gas phase in a mechanically agitated gas-liquid reactor. Chem. Eng. Sci. 1992, 47, 3339-3346.
30. Van't Riet, K.; Boom, J. M.; Smith, J. M. Power consumption, impeller coalescence and recirculation in aerated vessels. Trans. Inst. Chem. Eng. 1976, 54, 124-131.