US2014117283A1PendingUtilityA1

Reversible Sorbent for Warm CO2 Capture by Pressure Swing Adsorption

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Assignee: MASSACHUSETTS INST TECHNOLOGYPriority: Oct 26, 2012Filed: Oct 22, 2013Published: May 1, 2014
Est. expiryOct 26, 2032(~6.3 yrs left)· nominal 20-yr term from priority
Inventors:Zan LiuWilliam H. Green
B01J 20/3416B01J 20/28057B01J 20/3236B01D 2253/1124Y02A50/20B01D 2251/402B01D 53/02B01J 20/20B01D 2257/504B01J 20/3491Y02C20/40B01D 53/047B01J 20/3204B01J 20/041B01D 53/62
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Claims

Abstract

Sorbent for reversible warm CO 2 capture. The sorbent includes activated carbon impregnated with magnesium oxide, wherein the magnesium oxide constitutes at least 5% by weight of the sorbent.

Claims

exact text as granted — not AI-modified
1 . Sorbent for reversible warm CO 2  capture comprising a high surface area support material impregnated with MgO, wherein the MgO constitutes at least 5% by weight of the sorbent. 
     
     
         2 . The sorbent of  claim 1 , wherein a soluble magnesium salt is used as a precursor of the MgO. 
     
     
         3 . The sorbent of  claim 1  made using an impregnation method. 
     
     
         4 . The sorbent of  claim 1  wherein the high surface area support material is activated carbon. 
     
     
         5 . The sorbent of  claim 2  wherein the soluble magnesium salt is magnesium nitrate. 
     
     
         6 . The sorbent of  claim 3  wherein the impregnation method is an incipient wetness technique. 
     
     
         7 . The sorbent of  claim 1  wherein MgO constitutes approximately 15% by weight of the sorbent.

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