A new concept in the design of pressure-swing adsorption processes for multicomponent gas mixtures

Journal Article · Fri Jan 01 04:00:00 EST 1999 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie980323s· OSTI ID:316369

Dong, F; Lou, H; Kodama, Akio; Goto, Motonobu; Hirose, Tsutomu ^[1]

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1. Kumamoto Univ., Kurokami, Kumamoto (Japan)

This paper discusses a new concept in pressure-swing adsorption (PSA) process design for the separation of multicomponent gas mixtures. A more compact process design is achievable by incorporating two or more different adsorbents into a single PSA column. An example, used to illustrate the new concept, involved the separation of a ternary gas mixture containing carbon dioxide, methane, and nitrogen. With the new design, only two pairs of adsorption columns were required in place of the usual three. Feed was introduced at midcolumn of unit 1 and a midcolumn side stream from unit 2 supplied intermediate product. Three different adsorbents were required for the example separation. The process was simulated using a simple mathematical model which demonstrated that the new design gave a performance comparable to that of the original integrated process.

• OSTI ID: 316369
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 1 Vol. 38; ISSN 0888-5885; ISSN IECRED
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ADSORBENTS
ADSORPTION
CARBON DIOXIDE
DESIGN
GASES
MATHEMATICAL MODELS
METHANE
NITROGEN
PRESSURE CONTROL
SEPARATION EQUIPMENT