Recent Developments of the Reversing Exchanger

  • M. C. Sze
  • E. Cimler
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 5)


The application of the reversing exchanger to air separation for. air purification and chilling was described in 1947 by Lobo and Skaperdas [1], The exchanger which they had successfully tested was a ribbon-packed, multiple-annulus-type exchanger introduced by Collins in 1946. The packing and tubes were of copper and soldered together. Air, at a pressure of about 7 atm, flowed through one concentric passage in countercurrent heat exchange with low-pressure waste nitrogen in a second concentric passage, oxygen in a nonreversing third passage, and a so-called unbalance stream in a nonreversing fourth passage (see Fig. 1). A more complete description of the construction and design details of the Collins tubes was given by Trumpler and Dodge [2], While the Collins-type exchanger gave satisfactory performance, it had certain shortcomings. It was fairly expensive as a result of its construction. In addition, the capacity of each tube was small, and thus, for a large -tonnage plant, an unattractively high number of tubes must be placed together in parallel.


Waste Nitrogen Cold Stream Tubular Element Oxygen Plant Hexagonal Configuration 
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  1. 1.
    W. E. Lobo and G. T. Skaperdas, Trans. AIChE, Vol 43, No. 2, pp. 69–74 (1947).Google Scholar
  2. 2.
    P. R. Trumpler and B. F. Dodge, Trans. AIChE, Vol. 43, No. 2, pp. 75–84 (1947).Google Scholar
  3. 3.
    B. Benedict, Hydrocarbon Research, Inc., Process Development Department Memorandum Report No. M-161 (January 16, 1951).Google Scholar

Copyright information

© Springer Science+Business Media New York 1960

Authors and Affiliations

  • M. C. Sze
    • 1
  • E. Cimler
    • 1
  1. 1.Hydrocarbon Research, Inc.New YorkUSA

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