Trace impurity removal from air

R. Kumar, M. Huggahalli, Shuguang Deng, M. Andrecovich

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

In addition to Nitrogen, Oxygen and Argon, ambient air contains many trace impurities. These impurities include moisture, Carbon Dioxide, Oxides of Nitrogen and light Hydrocarbons. Prior to cryogenic distillation of air to produce Nitrogen, Oxygen and Argon these trace impurities have to be removed since, some of these constitute a safety hazard in the cryogenic plant. A significant amount of information is available in the literature for the removal of Water and Carbon Dioxide from air. However, only limited information is available for the removal of other trace impurities. We discuss the results of an experimental study on the removal of these trace impurities from air. These days, air pre purification is carried out primarily by adsorption based technologies. There are two main choices: Thermal Swing Adsorption (TSA) processes, and Pressure Swing Adsorption (PSA) processes. Main differences between these two approaches and the trace impurity removal results are discussed.

Original languageEnglish (US)
Pages (from-to)243-250
Number of pages8
JournalAdsorption
Volume9
Issue number3
DOIs
StatePublished - Sep 2003
Externally publishedYes

Fingerprint

Impurities
impurities
air
Air
Argon
Nitrogen
Adsorption
nitrogen
Carbon Dioxide
Cryogenics
adsorption
cryogenics
carbon dioxide
Carbon dioxide
argon
Nitrogen Oxides
Oxygen
distillation
oxygen
Hydrocarbons

Keywords

  • Adsorption
  • Air separation
  • ASUs
  • Nitrous oxide
  • PPU
  • Pre-purification units
  • Trace removal

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Process Chemistry and Technology
  • Chemical Engineering(all)

Cite this

Kumar, R., Huggahalli, M., Deng, S., & Andrecovich, M. (2003). Trace impurity removal from air. Adsorption, 9(3), 243-250. https://doi.org/10.1023/A:1024701917647

Trace impurity removal from air. / Kumar, R.; Huggahalli, M.; Deng, Shuguang; Andrecovich, M.

In: Adsorption, Vol. 9, No. 3, 09.2003, p. 243-250.

Research output: Contribution to journalArticle

Kumar, R, Huggahalli, M, Deng, S & Andrecovich, M 2003, 'Trace impurity removal from air', Adsorption, vol. 9, no. 3, pp. 243-250. https://doi.org/10.1023/A:1024701917647
Kumar R, Huggahalli M, Deng S, Andrecovich M. Trace impurity removal from air. Adsorption. 2003 Sep;9(3):243-250. https://doi.org/10.1023/A:1024701917647
Kumar, R. ; Huggahalli, M. ; Deng, Shuguang ; Andrecovich, M. / Trace impurity removal from air. In: Adsorption. 2003 ; Vol. 9, No. 3. pp. 243-250.
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