Skip to main content
Log in

Slugging bed height of polyethylene particles in a fluidized bed with an expanded section

  • Published:
Korean Journal of Chemical Engineering Aims and scope Submit manuscript

Abstract

Slugging experiments were performed in a fluidized bed of 7 cm ID and 50 cm in height to examine the maximum bed height with an expanded section. High-density polyethylene (HDPE) particles of 0.5 mm were employed as the bed materials. The slugging bed height was linearly increased with the gas velocity in the beds of uniform cross section as well as expanded section with different slope. From the results of this study, it was found that the existing correlation to predict the slugging bed height based on the heavier particles for the uniform cross section area was satisfactorily applied for the lighter particles of HDPE and for the expanded section, a slight modification was made for the particle of HDPE in the slugging bed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Baker, C. G. J. and Geldart, D., “An Investigation into the Slugging Characteristics of Large Particles,”Powder Technology,19,177 (1978).

    Article  Google Scholar 

  • Canada, G. S., McLaughlin, M. H. and Staub, F. W., “How Regimes and Void Fraction in Gas Fluidization of Large Particles in Beds without Tube Banks”,AIChE Symp. Ser.,74,14 (1978).

    Google Scholar 

  • Cho, H. I., Chung, C. H., Han, G. Y, Ahn, G. R. and Kong, J. S., “Axial Gas Dispersion in a Fluidized Bed of Polyethylene Particles,”Korean J. Chem. Eng.,17, 292 (2000)

    CAS  Google Scholar 

  • Davidson, J. F. and Harrison, D., “Fluidization,” Chap. 5, Academic Press, NewYork (1971).

    Google Scholar 

  • Geldart, D., Hurt, J. M. and Wadia, P. H., “Slugging in Beds of Large Particles”,AIChE Symp. Ser,74, 60 (1978).

    Google Scholar 

  • Lee, D. H., Epstein, N. and Grace, J. R., “Hydrodynamic Transition from Fixed to Fully Fluidized Beds for Three-Phase Inverse Fluidization”,Korean J. Chem. Eng.,17, 684 (2000).

    CAS  Google Scholar 

  • Lee, G. S. and Kim, S. D., “Rise Velocities of Slugs and Voids in Slugging and Turbulent Fluidized Beds”,Korean J. Chem. Eng.,6, 15 (1989).

    Article  CAS  Google Scholar 

  • Matsen, J. M., Hovmand, S. and Davidson, J. F., “Expansion of Fluidized Beds in Slug Flow”,Chem. Eng. Sci.,24(1), 743 (1969).

    Google Scholar 

  • Ryu, H. J., Choi, J. H., Yi, C. K., Shun, D. W., Son, J. E. and Kim, S. D., “Minimum Slugging Velocity in a Gas Fluidized Beds”,HWAHAK KONGHAK,37, 472 (1999).

    CAS  Google Scholar 

  • Satija, S. and Fan, L. S., “Characteristics of Slugging Regime and Transition to Turbulent Regime for Fluidized Beds of Large Coarse Particles”,AIChE J.,31(9), 1554 (1985).

    Article  CAS  Google Scholar 

  • Tsutsumi, A., Chen, W. and Kim, Y. H., “Classification and Characterization of Hydrodynamic and Transport Behaviors of Three-Phase Reactors”,Korean J. Chem. Eng.,16, 709 (1999).

    CAS  Google Scholar 

  • Yang, W. C. and Keairns, D. L., “The Effect of and Expanded Section on Slugging”,AIChE J.,26(1), 144 (1980).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Guiyoung Han.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Cho, H., Chung, C. & Han, G. Slugging bed height of polyethylene particles in a fluidized bed with an expanded section. Korean J. Chem. Eng. 18, 567–570 (2001). https://doi.org/10.1007/BF02698307

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02698307

Key words

Navigation