Separation and Purification Systems

  • Klaus D. Timmerhaus
  • Thomas M. Flynn
Part of the The International Cryogenics Monograph Series book series (ICMS)


The major industrial application of low-temperature processing involves the separation and purification of gases. Distillation of liquid air provides the major source of commercial oxygen, nitrogen, neon, argon, krytpon, anxenon. The bulk of the commercial helium is currently obtained from helium-bearing natural gas where the separation is effected by a low-temperature process. The low-boiling components of natural gas, such as methane, ethane, and ethylene, are separated and purified by low-temperature distillations. Low temperatures have also been used commercially to separate hydrogen from coke-oven gas and other sources of impure hydrogen. Even the commercial production of deuterium by cryogenic separation from hydrogen has become a reality.


Heat Exchanger Operating Line Theoretical Plate Reflux Ratio Lower Column 


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Copyright information

© Springer Science+Business Media New York 1989

Authors and Affiliations

  • Klaus D. Timmerhaus
    • 1
  • Thomas M. Flynn
    • 2
  1. 1.University of ColoradoBoulderUSA
  2. 2.Ball Aerospace Systems GroupBoulderUSA

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