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Author(s): Daniel Ferreira
Roberto Magalhães
João Bessa
Pedro Taveira
José Sousa
Adélio Mendes
Roger D. Whitley
Title: Study of AgLiLSX for Single-Stage High-Purity Oxygen Production
Issue Date: 2014
Abstract: 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 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.
Subject: Engenharia química, Engenharia química
Chemical engineering, Chemical engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia química
Engineering and technology::Chemical engineering
Related Information: info:eu-repo/grantAgreement/Agência de Inovação, S.A./Projectos de I&DT em Co-Promoção/SI IDT - 13438/2010/High-Performance Oxygen Vacuum Pressure Swing Adsorption/HPOVPSA
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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