RHO adsorbent compositions, methods of making and using them
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United States of America Patent
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May 12, 2020
Grant Date -
Mar 28, 2019
app pub date -
Sep 28, 2017
filing date -
Sep 28, 2017
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Abstract
Disclosed herein are novel RHO zeolites useful as kinetically selective adsorbents for oxygen and/or nitrogen. The adsorbents can be used in pressure swing adsorption processes for selectively adsorbing oxygen and/or nitrogen from feed streams such as an air stream or crude argon stream. Also disclosed are novel methods of preparing RHO zeolites, including in particular mixed-cation RHO zeolites.
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