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Adsorption
Erschienen in: Adsorption 8/2019

14.08.2019 | Invited Review Article

Medical oxygen concentrators: a review of progress in air separation technology

verfasst von: Mark W. Ackley

Erschienen in: Adsorption | Ausgabe 8/2019

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Abstract

Air separation by adsorption to produce oxygen for industrial and medical applications represents one of several important commercialized adsorption processes. Fueled by the introduction of synthetic zeolites, adsorbent and process development for air separation have progressed steadily over the last five decades. Early progress was driven primarily by large-scale industrial applications, however, small-scale medical oxygen concentrators (MOC) soon followed. This review presents an overview of the various types of commercially available MOCs, as well as the underlying adsorption technology. Key developments and essential concepts are summarized for air separation technology as it applies to both large and small-scale systems. Specific research targeting oxygen concentrators is also reviewed. The introduction of pulse flow oxygen conserving methodology has given rise to portable concentrators. Pulse flow represents not only a disruptive technology for the small-scale medical products, but also introduces operational challenges not present in large-scale industrial air separation. Process intensification utilizing small adsorbent particles and fast cycles is reviewed along with other key developments in air separation that apply to both large and small-scale systems. Challenges to further improvements in the medical concentrators are explored and opportunities for future research are identified.
Nächster Artikel Inverse ideal adsorbed solution theory for calculation of single-component adsorption equilibria from mixture isotherms supported by adsorption equilibrium distribution

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Fußnoten
1
Information taken from an abbreviated summary of the full report. Full report available at a significant cost.
 
2
The information in this table was extracted from the manufacturer’s specification sheets, brochures and manuals provided on their respective websites. Device weights and durations generally reflect the basic unit with a single battery installed.
 
3
Gardner Denver Thomas compressors are included here as a matter of convenience to represent compressor characteristics in later discussion of the important design factors in the PSA process.
 
4
Information in Tables 6 and 7 was extracted from material specification sheets provided by each manufacturer.
 
5
The correlation for the Peclet No. (Pe∞) is incorrect and should be taken from the original source (Langer et al. 1978).
 
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Metadaten
Titel
Medical oxygen concentrators: a review of progress in air separation technology
verfasst von
Mark W. Ackley
Publikationsdatum
14.08.2019
Verlag
Springer US
Erschienen in
Adsorption / Ausgabe 8/2019
Print ISSN: 0929-5607
Elektronische ISSN: 1572-8757
DOI
https://doi.org/10.1007/s10450-019-00155-w

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