US 11,949,135 B2
Molten carbonate fuel cell anode exhaust post-processing for carbon dioxide capture
Hossein Ghezel-Ayagh, New Milford, CT (US)
Assigned to FuelCell Energy, Inc., Danbury, CT (US)
Filed by FuelCell Energy, Inc., Danbury, CT (US)
Filed on Nov. 4, 2020, as Appl. No. 17/089,301.
Application 17/089,301 is a division of application No. 16/095,261, granted, now 11,211,625, previously published as PCT/US2017/028594, filed on Apr. 20, 2017.
Claims priority of provisional application 62/325,711, filed on Apr. 21, 2016.
Prior Publication US 2021/0050610 A1, Feb. 18, 2021
Int. Cl. H01M 8/0668 (2016.01); B01D 53/047 (2006.01); B01D 53/26 (2006.01); B01D 53/32 (2006.01); H01M 8/04014 (2016.01); H01M 8/04089 (2016.01); H01M 8/04119 (2016.01); H01M 8/04828 (2016.01); H01M 8/0612 (2016.01); H01M 8/0662 (2016.01); H01M 8/14 (2006.01)
CPC H01M 8/0668 (2013.01) [B01D 53/047 (2013.01); B01D 53/263 (2013.01); B01D 53/326 (2013.01); H01M 8/04014 (2013.01); H01M 8/04022 (2013.01); H01M 8/04097 (2013.01); H01M 8/04164 (2013.01); H01M 8/04828 (2013.01); H01M 8/0612 (2013.01); H01M 8/0662 (2013.01); H01M 8/0681 (2013.01); B01D 2256/22 (2013.01); B01D 2257/108 (2013.01); B01D 2257/80 (2013.01); H01M 2008/147 (2013.01); Y02C 20/40 (2020.08)] 11 Claims
OG exemplary drawing
 
1. A fuel cell system comprising:
a first fuel cell comprising a first anode and a first cathode, wherein the first anode is configured to output a first anode exhaust gas;
a first oxidizer configured to receive the first anode exhaust gas and air from a first air supply, to react the first anode exhaust gas and the air in a preferential oxidation reaction, and to output an oxidized gas;
a second fuel cell configured to act as an electrochemical hydrogen separator, the second fuel cell comprising:
a second anode configured to receive the oxidized gas from the first oxidizer and to output a second anode exhaust gas, and
a second cathode configured to output a hydrogen stream; and
a condenser configured to receive the second anode exhaust gas and to separate water and CO2.