High-purity oxygen production by pressure swing adsorption

• Type: Article in International Scientific Journal
• Date: 2007

Authors

Santos, JC (Author) Other; Cruz, P (Author) Other; Regala, T (Author) Other; Magalhães, F. D. (Author) FEUP; Adélio Mendes (Author) FEUP

Journal

Title: Industrial & Engineering Chemistry Research

Vol. 46

Pages: 591-599

ISSN: 0888-5885

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 36 Citations

ISI Web of Science

Scopus - 57 Citations

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences > Technology > Chemical technology

Other information

Authenticus ID: P-004-C7S

DOI: 10.1021/ie060400g

Abstract (EN): The oxygen purity produced by pressure swing adsorption (PSA) processes is limited to 95%, with the rest being essentially argon. This oxygen grade is suitable for many industrial applications. However, medical applications, cylinder filling, oxyfuel cutting in metal fabrications, and fuel cells technology with recirculation loop, among others, require oxygen with a higher purity (99% or above). In this paper, a study of high-purity oxygen production by a PSA unit using a silver exchanged zeolite from Air Products and Chemicals, Inc., with oxygen/argon adsorption selectivity is presented. This study comprehends the determination of adsorption equilibrium isotherms of oxygen, nitrogen, and argon as well as the simulation and optimization of a PSA experimental unit and the corresponding experimental validation.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9