A Study of the Phase Equilibria of the Hydrogen—Carbon Monoxide—Propane System at Low Temperatures

  • F. P. Stein
  • L. C. Claitor
  • J. M. Geist
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 7)


One of the most common industrial processes involving low-temperature scrubbing for the purification of gases is the use of liquid nitrogen for the purification of hydrogen for ammonia synthesis. The scrub towers operate at 250 to 400 psi, with overhead temperatures in the vicinity of -320°F [1,2,3]. The hydrogen product contains about 10 to 13 mole % nitrogen as dictated by the equilibrium conditions at the top of the scrub towers. This nitrogen impurity can be tolerated because the final synthesis gas contains 25 mole % nitrogen.


Solubility Parameter Virial Coefficient Virial Equation Ammonia Synthesis Propane System 
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  1. 1.
    Air Products and Chemicals, Inc. (unpublished data).Google Scholar
  2. 2.
    JVLR. Jester, “Ammonia Synthesis Gas from a Petroleum Refinery Vent Gas,” Trans. of the Inst. of Chem. Eng., Vol. 36, 133 (1958).Google Scholar
  3. 3.
    M. Ruhemann, The Separation of Gases, 2nd ed., Oxford University Press, London (1949), p. 247.Google Scholar
  4. 4.
    D. F. Palazzo, W. C Schreiner, and G.T. Skaperdas, “Low Temperature Recovery of Hydrogen from Refinery Gas,” Ind. and Chem., Vol. 49, 685 (1957).CrossRefGoogle Scholar
  5. 5.
    J. H. Hildebrand and R. L. Scott, Solubility of Non-Electrolytes, 3rd ed., Reinhold, New York (1950).Google Scholar
  6. 6.
    J.M. Prausmtz, “Fugacities in High Pressure Equilibria and in Rate Processes,” A.I.Ch.E. Journal, Vol. 5, 1 (1959).CrossRefGoogle Scholar
  7. 7.
    J.O. Hirschfelder, C. F. Curtiss, and R. EL Bird, Molecular Theory of Gases and Liquids, John Wiley, New York (1954).Google Scholar
  8. 8.
    C.J. Sterner, “Electromagnetic Pump for Circulating Gases at Low Flow Rates,” Rev. Sci. Inst., Vol. 31, 1159 (1960).CrossRefGoogle Scholar
  9. 9.
    C. McKinley and E.S. J. Wang, “Hydrocarbon—Oxygen Systems Solubility,” in Advances in Cryogenic Engineering, Vol. 4, K.D. Timmerhaus (ed.), Plenom Press, Inc., New York (1960) p. 11.Google Scholar

Copyright information

© Springer Science+Business Media New York 1962

Authors and Affiliations

  • F. P. Stein
    • 1
  • L. C. Claitor
    • 1
  • J. M. Geist
    • 1
  1. 1.Air Products and Chemicals, Inc.AllentownUSA

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