Study of AgLiLSX for Single-Stage High-Purity Oxygen Production

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Daniel Ferreira (Author) FEUP; Roberto Magalhães (Author) FEUP; João Bessa (Author) FEUP; Pedro Taveira (Author) FEUP; José Sousa (Author) FEUP; Adélio Mendes (Author) FEUP; Roger D. Whitley (Author) Other

Journal

Title: Industrial & Engineering Chemistry Research

Vol. 53 No. 40

Pages: 15508-15516

ISSN: 0888-5885

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 10 Citations

ISI Web of Science

Scopus - 13 Citations

Scientific classification

CORDIS: Technological sciences > Engineering > Chemical engineering

FOS: Engineering and technology > Chemical engineering

Associated Projects

HPOVPSA - High-Performance Oxygen Vacuum Pressure Swing Adsorption

Other information

Authenticus ID: P-009-VQ5

DOI: 10.1021/ie500442r

Abstract (EN): Commercial adsorbents do not exhibit argon/oxygen equilibrium selectivity above 1. However, in the past decade, Air Products and Chemicals developed an argon/oxygen selective silver-based zeolite, AgLiLSX. In this contribution, the authors studied and characterized the AgLiLSX adsorbent to provide fundamental data to evaluate its potential for high-purity oxygen production in a single-stage PSA unit. Oxygen, nitrogen, and argon adsorption isotherms and breakthroughs curves were obtained, and moderate equilibrium selectivity (alpha(N2/O2) = 4.98 and alpha(Ar/O2) = 1.14 at 1 bar and 25 degrees C), high working capacity (0.45 mol.kg(1) for nitrogen, between 1.4 and 0.2 bar at 25 degrees C), and superior performance were observed. The authors concluded that this adsorbent can allow the production of a 95+% oxygen stream in a single-stage PSA operation.

Language: English

Type (Professor's evaluation): Scientific

Notes: Publicação abrangida pelo Journal Citation Reports 2015

No. of pages: 9