US 12,421,115 B1
Separation of krypton gas from xenon gas using natural clinoptilolite
Guangping Xu, Albuquerque, NM (US); Matthew J. Paul, Albuquerque, NM (US); and Jeffery A. Greathouse, Albuquerque, NM (US)
Assigned to National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)
Filed by National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)
Filed on Jun. 30, 2022, as Appl. No. 17/854,307.
Int. Cl. C01B 23/00 (2006.01); B01D 53/04 (2006.01); B01D 53/047 (2006.01); B01J 20/16 (2006.01); B01J 20/34 (2006.01)
CPC C01B 23/0068 (2013.01) [B01D 53/0462 (2013.01); B01D 53/0476 (2013.01); B01J 20/165 (2013.01); B01J 20/3408 (2013.01); B01J 20/3483 (2013.01); B01J 20/3491 (2013.01); C01B 23/0078 (2013.01); B01D 53/047 (2013.01); B01D 2253/108 (2013.01); B01D 2256/18 (2013.01); B01D 2257/11 (2013.01); C01B 2210/0018 (2013.01); C01B 2210/0035 (2013.01); C01B 2210/0037 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for separating Kr gas from Xe gas by selectively adsorbing Kr gas, the method comprising:
providing a vessel comprising a Kr adsorbent bed comprising a natural clinoptilolite adsorbent;
exposing a feed gas comprising Kr gas and Xe gas to the adsorbent bed for a residence time to selectively adsorb sufficient Kr gas from the feed gas to form a Xe enriched gas raffinate product;
removing the Xe enriched gas raffinate product from the vessel; and
thereafter regenerating the Kr adsorbent bed to form a Kr enriched gas extract product.