The solids flow in the riser of a CFB viewed by Positron Emission Particle Tracking (PEPT)

CFB 2008 - Proceedings of the 9th Int. Conference on Circulating Fluidized Beds, in Conjunction with the 4th International VGB Workshop "Operating Experience with Fluidized Bed Firing Systems"

Volumn , Issue , 2008, Pages

  Van De Velden, M ^a   Chan, C W ^a   Seville, J P K ^c   Fan, X ^a,b   Parker, D ^a,b   Baeyens, J ^a  

^a UNIVERSITY OF BIRMINGHAM   (United Kingdom)

^b UNIVERSITY OF WARWICK   (United Kingdom)

^c University of Warwick School of Engineering ^*

Author keywords

[No Author keywords available]

Indexed keywords

CATALYSIS; POPULATION STATISTICS; POSITRONS;

CIRCULATING FLUIDIZED BED; CROSS SECTIONAL AREA; PARTICLE MOVEMENT; POPULATION DENSITIES; POSITRON EMISSION PARTICLE TRACKING; SINGLE PARTICLE; SOLIDS CIRCULATION FLUX; SUPERFICIAL GAS VELOCITIES;

FLUIDIZED BEDS;

EID: 84904786828     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (18)

1. Bai, R.D., Jin, Y., Yu, Z.Q., Zhu, J.X., The axial distribution of the cross-sectionally averaged voidage in fast fluidized beds, Powder. Technol., 71 (1992), pp. 51-58
2. Bai, R.D., Jin, Y., Yu, Z., Flow regimes in circulating fluidized beds, Chem. Eng. Technol., 16 (1995), pp. 307-313
3. F. Berutti, J. Chaouki, L. Godfroy, T.S. Pugsley, G.S. Patience, Hydrodynamics of circulating fluidized-bed risers - A review, Can. J. Chem. Eng. 73 (1995), pp. 579-602.
4. Bi, H.T., Grace, J.R., Flow regime diagrams for gas-solid fluidization and upward transport, International Journal Multiphase Flow 21 (1995), pp. 1229-1236.
5. Harris, A.T., Davidson, J.F., Thorpe, R.B., Particle residence time distributions in circulating fluidised beds, Chem. Eng. Sci. 58 (2003), pp. 2181-2202.
6. Fan, X., Parker, D.J., Smith, M.D., Enhancing F-18 uptake in a single particle for positron emission particle tracking through modification of solid surface chemistry, Nucl. Instr. and Meth. A 558 (2006), pp. 542-546.
7. Fan, X., Parker, D.J., Smith, M.D., Labelling a single particle for positron emission particle tracking using direct activation and ion-exchange techniques, Nucl. Instr. and Meth. A 562 (2006), pp. 345-350.
8. Hartge, E.U., Rensner, D., Werther, J., Solids concentration and velocity patters in circulating fluidized beds, In: CFB Technology II, Basu, P., Large, J.F. (Eds), Pergamon Press (1988), pp. 165-180
9. Kato, K.H., Shibasaki, H., Tamura, K., Arita, S., Wang, C., Takarada, T., Particle hold-up in a fast fluidized bed, J. Chem. Eng. Japan, 22 (1989), pp. 130-136
10. Kwauk, M., Wang, N., Li, Y., Chan, B., Shen, Z., Fast fluidization at ICM, In: CFB Technology I, Basu, P., (Ed), Pergamon Press (1986), pp. 33-62
11. Li, J., Tung, Y., Kwauk, M., Axial voidage profiles in fast fluidized beds in different operating regimes, In: CFB Technology II, Basu, P., Large, J.F. (Eds), Pergamon Press (1988), pp. 193-203
12. Mori, S., Kato, K., Kobayashi, E., Liu, D., Hasatani, M, Matsuda, H., Hattori, M., Hirama, T., Takeuchi, H., Effect of apparatus design on hydrodynamics of CFB, AIChE Symp. Series, 289 (1992), pp. 17-25
13. Rhodes, M., Geldart, D., The upward flow of gas/solid suspensions, part I: A model for the CFB incorporating dual level entry into the riser, Chem. Eng. Res. Des., 67 (1989), pp. 20-29
14. Smolders, K., Baeyens, J., Overall solids movement and solids residence time distribution in a CFB-riser, Chem. Eng. Sci. 55 (2000), pp. 4101-4116.
15. Smolders, K., Baeyens, J., Hydrodynamic modeling of CFBs, Adv. Powder Technol., 9 (1998), pp. 17-38
16. Van de Velden, M., Baeyens J., Seville J.P.K. and Fan X.: The solids flow in the riser of a CFB viewed by Positron Emission Particle Tracking (PEPT), Powder Technology, (2007-a); doi:10.1016/j.powtec.2007.07.027
17. Van de Velden, M., Baeyens J., Dougan B. and McMurdo A.: Investigation of operational parameters for an industrial CFB combustor of coal, biomass and sludge, China Particuology, 5(4), (2007-b), pp. 247-254.
18. Yerushalmi, J. and Cankurt, N.T., Further studies of the regimes of fluidization, Powder Technol., 24 (1979), pp. 187-205