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Exergy-based methods for air separation.

Number: pap. n. 08

Author(s) : TESCH S., MOROZUK T., TSATSARONIS G.

Summary

Air separation by cryogenic distillation has been used for over 100 years as an industrial process for producing pure nitrogen, oxygen as well as argon, helium and other noble gases. Different configurations and sizes of air separation plants lead to different ranges of gaseous and liquid products and different purity, which depend on the potential consumer and the application. Air separation processes are energy and cost intensive.
In this paper, the exergetic, economic, and exergoeconomic analyses are discussed briefly, while attention is given to the LCA and the exergoenvironmental analysis as well as to exergy-risk-hazard analysis. The exergy-based methods are demonstrated using two configurations of an air separation plant. The results obtained from the exergetic analysis show that the overall exergetic efficiencies are approximately 35 % and 59 % for air separation plants with and without a nitrogen liquefaction block, respectively.

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Details

  • Original title: Exergy-based methods for air separation.
  • Record ID : 30021684
  • Languages: English
  • Subject: Environment
  • Source: Cryogenics 2017. Proceedings of the 14th IIR International Conference: Dresden, Germany, Mai 15-19, 2017.
  • Publication date: 2017/05/15
  • DOI: http://dx.doi.org/10.18462/iir.cryo.2017.0008

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