The Kinetics of Adsorption of Methane and Nitrogen from Hydrogen Gas

  • A. J. Kidnay
  • M. J. Hiza
  • P. F. Dickson
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 14)


Adsorptive purifiers are fixed-bed units in which the carrier gas containing the impurity to be adsorbed is passed through a packed bed of adsorbent. In this type of operation there are two distinct mass transfer processes: the diffusion of the impurity through the gas phase to the surface of the adsorbent, and diffusion into the particle. If both of these processes were extremely rapid, equilibrium would exist at all points in the adsorbent bed, and a plot of the adsorber outlet concentration as a function of time would be a step function. Usually, however, one or both of the mass transfer processes are relatively slow, with the result that the concentration-time (breakthrough) curve assumes an S shape. The prediction of breakthrough curves is of considerable practical importance, since the determination of the amount of adsorbent that is unsaturated when the first trace of impurity appears at the outlet of the adsorbent bed requires a knowledge of the breakthrough curve for the system under consideration.


Mass Transfer Coefficient Breakthrough Curve Inlet Concentration Cryogenic Engineer Experimental Breakthrough Curve 
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  1. 1.
    A. J. Kidnay, D.Sc. Dissertation, Colorado School of Mines, Golden, Colorado (1968).Google Scholar
  2. 2.
    A. J. Kidnay, M. J. Hiza, and P. F. Dickson, in: Advances in Cryogenic Engineering, Vol, 13, Plenum Press, New York (1968), p. 397.Google Scholar
  3. 3.
    I. Klotz, Chem. Rev., 39(2):241 (1946).CrossRefGoogle Scholar
  4. 4.
    T. Vermeulen, in: Advances in Chemical Engineering, Vol. 2, Academic Press, New York (1958), p. 147.Google Scholar
  5. 5.
    K. R. Hall, L. C. Bagleton, A. Acrivos, and T. Vermeulen, Ind. and Eng. Chem. Fund., 5(2):212 (1966).CrossRefGoogle Scholar
  6. 6.
    L. C. Eagleton, Ph.D. Dissertation, Yale University, New Haven, Conn. (1951).Google Scholar
  7. 7.
    L. C. Eagleton and H. Bliss, Chem. Eng. Progr., 49(10):543 (1953).Google Scholar
  8. 8.
    E. Glueckauf, Trans, Far. Soc., 51:1540 (1955).CrossRefGoogle Scholar
  9. 9.
    J. DeAcetis and George Thodos, Ind. and Eng. Chem,, 52(12):1003 (1960).CrossRefGoogle Scholar
  10. 10.
    O. A. Hougen and K. M. Watson, Chemical Process Principles, Pari Three, Kinetics and Catalysis, John Wiley and Sons, New York (1955), p. 1085.Google Scholar
  11. 11.
    B. W. Gamson, Chem. Eng. Progr., 47(1):19 (1951).Google Scholar
  12. 12.
    A. S. Gupta and George Thodos, Chem. Eng. Progr., 58(7):58 (1962).Google Scholar
  13. 13.
    J. I. Nutter and G. Burnet, Ind. and Eng. Chem. Process Design and Dev., 5(1):1 (1966).CrossRefGoogle Scholar
  14. 14.
    H. C. Engel and J. Coull, Trans. AIChE, 38(5):947 (1942).Google Scholar

Copyright information

© Springer Science+Business Media New York 1969

Authors and Affiliations

  • A. J. Kidnay
    • 1
  • M. J. Hiza
    • 1
  • P. F. Dickson
    • 1
  1. 1.NBS Institute for Basic StandardsBoulderUSA

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