US 12,283,724 B2
Ejector and fuel cell-based flare gas recovery system
Samusideen Adewale Salu, Ras Tanura (SA); Mohamed A. Soliman, Ras Tanura (SA); Nisar Ahmad Ansari, Ras Tanura (SA); and Najamulhasan S. Tirmezi, Ras Tanura (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Aug. 5, 2022, as Appl. No. 17/817,821.
Prior Publication US 2024/0047713 A1, Feb. 8, 2024
Int. Cl. H01M 8/04089 (2016.01); B01D 53/04 (2006.01); H01M 8/0444 (2016.01); H01M 8/04746 (2016.01); H01M 8/12 (2016.01); H01M 8/1231 (2016.01)
CPC H01M 8/04089 (2013.01) [B01D 53/04 (2013.01); H01M 8/04447 (2013.01); H01M 8/04753 (2013.01); H01M 8/1231 (2016.02); B01D 2257/30 (2013.01); H01M 2008/1293 (2013.01); H01M 2250/10 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A flare gas recovery system, comprising:
an ejector configured to receive flare gas from a suction line extending from a flare gas header, and to receive a motive fluid that draws the flare gas into the ejector to be mixed with the motive fluid and discharge a recovered gas into a discharge gas line; and
a solid oxide fuel cell (SOFC) system configured to receive the recovered gas and includes:
a fuel cell power module configured to use the recovered gas to generate electrical power, an anode exhaust, and a cathode exhaust;
a combustor configured to receive and combust at least a portion of the anode and cathode exhausts and thereby generate waste heat; and
a process gas heat exchanger configured to receive and convert the waste heat into electrical power.