Commercial processes for separation of air.

Author(s) : CASTLE W. F.

Type of article: Periodical article, Review


Air separation plants producing large quantities of gaseous products, liquid and/or high purity atmospheric gases use cryogenic techniques. For smaller capacities, non-cryogenic processes, pressure swing adsorption and membrane are used to separate oxygen and nitrogen from air. Capital charges for production plant and distribution, and power consumption, are the two main components of operating costs for supply of atmospheric gases. Operating labour provides another, but minor component. This paper covers the production of oxygen, nitrogen and argon from air, albeit briefly. Other constituents, such as the rare gases, can be by-products from cryogenic separation but are not dealt in this article.

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Format PDF

Pages: 4-20 (11 p.)




  • Original title: Commercial processes for separation of air.
  • Record ID : 2000-0011
  • Languages: English
  • Source: Bull. IIF-IIR - vol. 79 - n. 5
  • Publication date: 1999


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