Gas separation: processes – Solid sorption – Including reduction of pressure
Patent
1992-10-05
1993-12-07
Spitzer, Robert
Gas separation: processes
Solid sorption
Including reduction of pressure
95130, B01D 5304
Patent
active
052680231
ABSTRACT:
Low silica X (LSX) zeolites having a framework Si/Al ratio equal to 1.0 with lithium exchange levels greater than a threshold level of 70% exhibit unexpectedly higher capacity for nitrogen adsorption compared to LSX-zeolite with lower lithium exchange levels. These materials provide high performance adsorbents for PSA air separation processes at a lower cost for the adsorbent because of the lower threshold lithium exchange levels compared to highly exchanged lithium X-zeolite known in the prior art.
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Air Products and Chemicals Inc.
Chase Geoffrey L.
Marsh William F.
Simmons James C.
Spitzer Robert
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