Necessary parameters for specifying the hydrodynamics of circulating fluidized bed risers - A review and reiteration

Powder Technology

Volumn 137, Issue 1-2, 2003, Pages 63-76

  Xu, Guangwen ^a   Gao, Shiqiu ^a  

^a INSTITUTE OF PROCESS ENGINEERING   (China)

Author keywords

Axial voidage profiles; Circulating fluidized bed; Downcomer bed height; Imposing pressure; Modeling; Solids inventory

Indexed keywords

FLOW CONTROL; FLOW PATTERNS; HYDRODYNAMICS; VALVES (MECHANICAL);

CIRCULATING FLUIDIZED BED (CFB) RISERS;

FLUIDIZED BEDS;

CIRCULATION; FLOW CONTROL; FLOW PATTERN; FLUIDIZED BED; HYDRODYNAMICS; MATHEMATICAL MODELING; NON-UNIFORM FLOW;

ACCELERATION; AERATION; CONTROL SYSTEM; DENSITY; DILUTION; EXPERIMENT; FLOW; FLOW MEASUREMENT; FLUIDIZED BED; GAS FLOW; HEIGHT; HYDRODYNAMICS; MODEL; PARAMETER; PARTICULATE MATTER; PRESSURE; REVIEW; SOLID; SUSPENSION; VALVE; VELOCITY;

EID: 0242709874     PISSN: 00325910     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.powtec.2003.08.031     Document Type: Article

References (32)

1. Bai D., Jin J., Yu Z., Zhu J. The axial distribution of the cross-sectionally averaged voidage in fast fluidized beds. Powder Technol. 71:1992;51-58.
2. G. Xu, Hydrodynamic Modeling for Heterogeneous Flow Structure in Circulating Fluidized Beds, PhD Thesis, Institute of Chemical Metallurgy, Academy Sinica, Beijing, 1996.
3. Li Y., Kwauk M. The dynamics of fast fluidization. Grace J.R., Matsen J.M. Fluidization. vol. III:1980;537-544 Plenum Press, New York.
4. Li Y., Chen B., Wang F., Wang Y., Guo M. Rapid fluidization. Int. Chem. Eng. 21:1981;670-678.
5. Weinstein H., Graff R.A., Meller M., Shao M.J. The influence of the imposed pressure drop across a fast fluidized bed. Kunii D., Toei R. Fluidization. vol. IV:1983;299-306 Engineering Foundation, New York.
6. Li J., Tung Y., Kwauk M. Axial voidage profiles of fast fluidized beds in different operating regions. Basu P., Large J.F. Circulating Fluidized Bed Technology. vol. II:1988;193-203 Pergamon Press, Oxford.
7. Hirama T., Takeuchi H., Chiba T. Regime classification of macroscopic gas-solid flow in a circulating fluidized bed riser. Powder Technol. 70:1992;215-222.
8. Hirama T., Kuramoto K., Chiba T. Effects of riser height and downcomer solids inventory on dense-bed height in a riser of CFB. Organizing Committee Fluidization. vol. VIII:1995;113-120 Engineering Foundation, New York. Preprints.
9. Mori S., Hashimoto O., Haruta T., Mochizuki K., Matsutani W., Hiraoka S., Yamada I., Kojima T., Tuji K. Turbulent fluidization phenomena. Basu P., Large J.F. Circulating Fluidized Bed Technology. vol. II:1988;105-112 Pergamon Press, Oxford.
10. Mori S., Liu D., Kato K., Kobayashi E. Flow regimes and critical velocity in a circulating fluidized bed. Powder Technol. 70:1992;223-227.
11. Rhodes M.J., Laussmann P. A study of the pressure balance around the loop of a circulating fluidized bed. Can. J. Chem. Eng. 70:1992;625-630.
12. Rhodes M.J., Geldart D. A model for the circulating fluidized bed. Powder Technol. 53:1987;155-162.
13. Rhodes M.J., Geldart D. The upward flow of gas/solid suspensions: Part 1. A model for the circulating fluidized bed incorporating dual level gas entry into the riser. Chem. Eng. Res. Des. 67:1989;20-29.
14. Bai D., Zhu J.-X., Jin Y., Yu Z. Internal recirculation flow structure in vertical upflow gas-solids suspensions: Part I. A core-annulus model. Powder Technol. 85:1995;171-177.
15. Lei H., Horio M. A comprehensive pressure balance model of circulating fluidized beds. J. Chem. Eng. Jpn. 31:1998;83-94.
16. Li J., Xu G., Ge W. The coexistence of two different steady states in circulating fluidized beds. Werther J., Kwauk M., Li J. Abstracts for Workshop II on Modeling and Control of Fluidized Bed Systems, Organizing Committee, Beijing. 1996;14.
17. Xu G., Kousuke N., Nakagawa N., Kato K. Collapse of dilute suspension in different circulating fluidized bed risers with respect to different particles. Can. J. Chem. Eng. 77:1999;238-246.
18. Li J., Wen L., Ge W., Cui H., Ren J. Dissipative structure in cocurrent-up gas-solid flow. Chem. Eng. Sci. 53:1998;3367-3379.
19. Li J., Werther J. Final Report for China-Germany Workshop on Modeling and Control of Fluidized Bed Systems. 1999 (Aug.);3 Technical University Hamburg, Hamburg.
20. Dry R.J., La Nauze R.D. Combustion in fluidized beds. Chem. Eng. Prog. 86:1990 (July);31-47.
21. Breault R.W., Mathur V.K. High-velocity fluidized bed hydrodynamic modeling: 1. Fundamental studies of pressure drop. Ind. Eng. Chem. Res. 28:1989;684-688.
22. Reh L., Li J. Measurement of voidage in fluidized beds by optical probes. Basu P., Horio M., Hasatani M. Circulating Fluidized Bed Technology. vol. III:1990;105-113 Pergamon Press, Oxford.
23. Yerushalmi J., Cankurt N.T. Further studies of the regimes of fluidization. Powder Technol. 24:1979;187-205.
24. Xu G., Sun G., Nomura K., Li J., Kato K. Two distinctive variational regions of radial particle concentration profiles in circulating fluidized risers. Powder Technol. 101:1999;91-100.
25. Bi H.T., Grace J.R., Zhu J.-X. Types of choking in vertical pneumatic systems. Int. J. Multiphase Flow. 19:1993;1077-1092.
26. Xu G., Nomura K., Nakagawa N., Kato K. Dynamics at the transition from dilute transport to dense fluidization in two CFBs with different diameters. Jin Y., Li J., Mori S., Horio M. Fluidization '97: Sciences and Technology. 1997;139-144 Tsinghua University Press, Beijing.
27. Xu G., Nomura K., Gao S., Kato K. More fundamentals of dilute suspension collapse and choking for vertical conveying systems. AIChE J. 47:2001;2177-2198.
28. Schnitzlein M.G., Weinstein H. Design parameters determining solid hold-up in fast fluidized bed system. Basu P., Large J.F. Circulating Fluidized Bed Technology. vol. II:1988;205-211 Pergamon Press, Oxford.
29. Yang W.C. A model for the dynamics of a circulating fluidized bed loop. Basu P., Large J.F. Circulating Fluidized Bed Technology. vol. II:1988;181-189 Pergamon Press, Oxford.
30. Mori S., Yan Y., Kato K., Matubara K., Liu D. Hydrodynamics of circulating fluidized bed. Basu P., Horio M., Hasatani M. Circulating Fluidized Bed Technology. vol. III:1990;113-122 Pergamon Press, Oxford.
31. Wong R., Pugsley T., Berruti F. Modeling the axial voidage profile and flow structure in risers of circulating fluidized beds. Chem. Eng. Sci. 47:1992;2301-2310.
32. Adánez J., Gayán P., García-Labiano F., de Diego L.F. Axial voidage profiles in fast fluidized beds. Powder Technol. 81:1994;259-268.