A Neat Way to Calculate the Gas Velocity from the Ergun Equation in a Packed Bed

https://doi.org/10.22146/ajche.50843

Thomass Y. Choong(1*), William R. Paterson(2), David M. Scott(3)

(1) Departmentof ChemicalandEnvironmentalEngineering UniversitiPutraMalaysia,43400 Serdang,MALAYSIA Telefax: (603)86-56-7099
(2) Departmentof Chemical Engineering, University of Cambridge Pembroke Street, Cambridge CB23RA, THEUNITED KINGDOM
(3) Departmentof Chemical Engineering, University of Cambridge Pembroke Street, Cambridge CB23RA, THEUNITED KINGDOM
(*) Corresponding Author

Abstract


The Ergun equation is often used to describe the pressure drop in a packed bed. This paper presents a method to calculate neatly the gas velocity from the Ergun equation. This method is illustrated using rapid pressure swing adsorption, where flow resistance in the bed is crucial for the successful operation of the process.

Keywords


Darcy's law, Ergun equation, modeling, pressure drop, and rapid pressure swing adsorption (RPSA).

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References

  1. Burden, R. L., and Faires,J. D. (2001). Numerical Analysis, Prindle, Brooks/Cloe, U.S.A., 24-5.
  2. Ergun, S. (1952). "Fluid flow through packed columns," Chem. Engng. Prog., 48,89-94.
  3. Kikkinides,E. S., and Yang, R. 1. (1993). "Effects of bed pressure drop on isothermal and adiabatic adsorber dynamics," Chem. Engng. Sci., 48, 1545-55.
  4. Macdonald, I. E., El-Sayed, M. S., Mow, K., and Dullien, F. A. L. (1979). "Flow throughporous media: The Ergun equation revisited," Ind. Engng. Chem. Fundam.18, 199-207.
  5. Rousar, I., Ditl, P., Kotsis, L., and Kutics, K. (1992). "Transient flow of a compressiblefluid through beds of solid particles or porous materials," Chem. Engng.Comm., 112, 67-83.



DOI: https://doi.org/10.22146/ajche.50843

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