In:
Solid State Phenomena, Trans Tech Publications, Ltd., Vol. 119 ( 2007-1), p. 143-146
Abstract:
Adsorption characteristics of nitrogen and oxygen onto the ion-exchanged X-type zeolites
through pressure swing adsorption (PSA) process were investigated. On the basis of Na-X zeolite, a series of ion-exchanged X-type zeolites containing Ag, Li, Ca, Sr, Br, and K were prepared and
investigated in this work. It was revealed that the ion-exchanged X-type zeolites showed a remarkably improved and selective adsorption capability for nitrogen. At equilibrium pressure under 0.5 atm,
adsorption capability for nitrogen was decreased in the order of Ag-X 〉 Li-X 〉 Sr-X 〉 Ca-X 〉 Na-X 〉 Ba-X 〉 K-X. At equilibrium pressure over 1 atm, however, the capability was decreased in the order
of Li-X 〉 Ag-X 〉 Sr-X 〉 Ca-X 〉 Na-X 〉 Ba-X 〉 K-X. The Li-X zeolite exhibited the selective
adsorption capability for nitrogen in the air separation process at high pressure. The separation factor for nitrogen/oxygen (= N2/O2) in the Li-X zeolite was ca. 13.
Type of Medium:
Online Resource
ISSN:
1662-9779
DOI:
10.4028/www.scientific.net/SSP.119
DOI:
10.4028/www.scientific.net/SSP.119.143
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2007
detail.hit.zdb_id:
2051138-3
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