A hydrodynamic model of a circulating fluidised bed with low-density particles

Canadian Journal of Chemical Engineering

Volumn 90, Issue 4, 2012, Pages 1027-1032

  Miao, Qi ^a   Zhu, Jesse ^a   Barghi, Shahzad ^a   Wu, Chuangzhi ^b   Yin, Xiuli ^b   Zhou, Zhaoqiu ^b  

^a UNIVERSITY OF WESTERN ONTARIO   (Canada)

^b GUANGZHOU INSTITUTE OF ENERGY CONVERSION   (China)

Author keywords

Circulating fluidised bed; Hydrodynamics; Low density particles; Modelling

Indexed keywords

AXIAL PRESSURES; BED VOIDAGE; BIOMASS GASIFIER; CIRCULATING FLUIDISED BED; COLD MODELS; DENSE REGION; EXPERIMENTAL DATA; HYDRODYNAMIC MODEL; LOW-DENSITY PARTICLES; MODEL PREDICTION; MODEL VALIDATION; RADIAL DISTRIBUTIONS; SOLIDS DISTRIBUTION; SOLIDS HOLDUPS; TWO-DIMENSIONAL MATHEMATICAL MODELS;

HYDRODYNAMICS; MATHEMATICAL MODELS; MODELS; OPTICAL FIBERS;

FLUIDIZED BEDS;

EID: 84863543321     PISSN: 00084034     EISSN: 1939019X     Source Type: Journal    
DOI: 10.1002/cjce.20618     Document Type: Article

References (33)

1. Adánez, J., P. Gayán, F. García-Labiano and L. F. de Diego, " Axial Voidage Profiles in Fast Fluidised Beds, " Powder Technol. 81, 259-268 (1994).
2. Bai, D. and K. Kato, " Quantitative Estimation of Solids Holdups at Dense and Dilute Regions of Circulating Fluidised Beds, " Powder Technol. 101, 183-190 (1999).
3. Bi, H. T., Y. Jin, Z. Q. Yu and D. R. Bai, "The Radial Distribution of Heat Transfer Coefficient in Fast Fluidised Bed, " in "Fluidisation VI, " J. R. Grace, L. W. Shemilt and M. A. Bergougnou, Eds., Engineering Foundation, New York (1989), pp. 701-708.
4. Cabezas-Gómez, L. and F. E. Milioli, " Numerical Study on the Influence of Various Physical Parameters Over the Gas-Solid Two-Phase Flow in the 2D Riser of a Circulating Fluidised Bed, " Powder Technol. 132, 216-225 (2003).
5. de Diego, L. F., P. Gayán and J. Adánez, " Modelling of the Flow Structure in Circulating Fluidised Beds, " Powder Technol. 85, 19-27 (1995).
6. Gao, S., G. Zhao, S. Qiu and W. Ma, "Solid Circulating Rate in Fast Fluidised Bed, " in "Fluidisation-91, " M. Kwauk and D. Kunii, Eds., Science Press, Beijing (1991), pp. 76.
7. Godfroy, L., G. S. Patience and J. Chaouki, " Radial Hydrodynamics in Risers, " Ind. Eng. Chem. Res. 38, 81-89 (1999).
8. Grace J. R., A. A. Avidan and T. M. Knowlton, Eds., "Circulating Fluidised Beds, " Chapman & Hall Press, London, New York (1997).
9. Gungor, A. and N. Eskin, " Hydrodynamic Modelling of a Circulating Fluidised Bed, " Powder Technol. 172, 1-13 (2007).
10. Harris, B. J. and J. F. Davidson, "Modelling Options for Circulating Fluidised Beds: A Core/Annulus Deposition Model, " in "Circulating Fluidised Bed Technology IV, " A. A. Avidan, Ed., AIChE, New York (1994), pp. 32-39.
11. Kunii, D. and O. Levenspiel, " Entrainment of Solids From Fluidised Beds, " Powder Technol. 61, 193-206 (1990).
12. Kunii, D. and O. Levenspiel, "Fluidisation Engineering, " 2nd ed., Boston, Butterworth-Heinemann (1991).
13. Li, Y. and M. Kwauk, "The Dynamics of Fast Fluidisation, " in "Fluidisation, " J. R. Grace and J. M. Masten, Eds., New York, Plenum Press (1980), pp. 537-544.
14. Lu, H. and D. Gidaspow, " Hydrodynamic Simulations of Gas-Solid Flow in a Riser, " Ind. Eng. Chem. Res. 42, 2390-2398 (2003).
15. Mathiesen, V., T. Solberg and B. H. Hjertager, " Predictions of Gas/Particle Flow With an Eulerian Model Including a Realistic Particle Size Distribution, " Powder Technol. 112, 34-45 (2000).
16. Mei, J. S., E. R. Monazam and L. J. Shadle, " Flow Regime Study of a Light Material in an Industrial Scale Cold Flow Circulating Fluidised Bed, " J. Energy Resour. Technol. 128, 129-134 (2006).
17. Miao, Q., C. Wang, C. Wu, X. Yin and J. Zhu, " Fluidisation of Sawdust in a Cold Model Circulating Fluidised Bed: Experimental Study, " Chem. Eng. J. 167, 335-341 (2011).
18. Nieuwland, J. J., M. van Sint Annaland, J. A. M. Kuipers and W. P. M. van Swaaij, " Hydrodynamic Modelling of Gas/Particle Flows in Riser Reactors, " AIChE J. 42, 1569-1582 (1996).
19. Patience, G. S. and J. Chaouki, "Solids Hydrodynamics in the Fully Developed Region of CFB Risers, " in "Fluidisation VIII (Preprints), " J.-F. Large and C. Laguérie, Eds., Tours, France, Engineering Foundation (1995), pp. 33-40.
20. Pugsley, T. S. and F. Berruti, " A Predictive Hydrodynamic Model for Circulating Fluidised Bed Risers, " Powder Technol. 89, 57-69 (1996).
21. Rhodes, M. J., " Modelling the Flow Structure of Upward-Flowing Gas-Solids Suspensions, " Powder Technol. 60, 27-38 (1990).
22. Rhodes, M. J. and D. Geldart, " A Model for the Circulating Fluidised Bed, " Powder Technol. 53, 155-162 (1987).
23. Rhodes, M. J., X. S. Wang, H. Cheng, T. Hirama and B. M. Gibbs, " Similar Profiles of Solids Flux in Circulating Fluidised-Bed Risers, " Chem. Eng. Sci. 47(7), 1635-1643 (1992).
24. Schlichthaerle, P. and J. Werther, " Axial Pressure Profiles and Solids Concentration Distributions in the CFB Bottom Zone, " Chem. Eng. Sci. 54, 5485-5493 (1999).
25. Smolders, K. and J. Baeyens, " Hydrodynamic Modelling of the Axial Density Profile in the Riser of a Low-Density Circulating Fluidised Bed, " Can. J. Chem. Eng. 79(3), 422-429 (2001).
26. Sun, B. and D. Gidaspow, " Computation of Circulating Fluidised-Bed Riser Flow for the Fluidisation VIII Benchmark Test, " Ind. Eng. Chem. Res. 38, 787-792 (1999).
27. Svensson, A., F. Johnsson and B. Leckner, " Bottom Bed Regimes in A Circulating Fluidised Bed Boiler, " Int. J. Multiphase Flow 22(6), 1187-1204 (1996).
28. Wang, J., W. Ge and J. Li, " Eulerian Simulation of Heterogeneous Gas-Solid Flows in CFB Risers: EMMS-Based Sub-Grid Scale Model With a Revised Cluster Description, " Chem. Eng. Sci. 63, 1553-1571 (2008).
29. Wen, C. Y. and L. H. Chen, " Fluidised Bed Freeboard Phenomena: Entrainment and Elutriation, " AIChE J. 28(1), 117-128 (1982).
30. Werther, J., "Fluid mechanics of large-scale CFB units, " in "Circulating Fluidised Bed Technology IV, " Proceedings of the Fourth International Conference on Circulating Fluidised Beds, A. A. Avidan, Eds., Pennsylvania, U.S.A. (1994), pp. 1-14.
31. Xu, G., G. Sun and S. Gao, " Estimating Radial Voidage Profiles for All Fluidisation Regimes in Circulating Fluidised Bed Risers, " Powder Technol. 139, 186-192 (2004).
32. Yang, G. L., Z. Huang and L. Z. Zhao, "Radial Gas Dispersion in a Fast Fluidised Bed, " in "Fluidisation IV, " D. Kunii and R. Toei, Eds., New York, Engineering Foundation (1984), pp. 145-152.
33. Zhang, W., Y. Tung and F. Johnsson, " Radial Voidage Profiles in Fast Fluidised Beds of Different Diameters, " Chem. Eng. Sci. 46 (12), 3045-3052 (1991).