US 9,810,146 B2
Calcium sulfate looping cycles for sour gas combustion and electricity production
Ali Hoteit, Abqaiq (SA); and Mourad Younes, Abqaiq (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jul. 17, 2014, as Appl. No. 14/334,077.
Prior Publication US 2016/0017799 A1, Jan. 21, 2016
Int. Cl. C01B 3/36 (2006.01); F02C 3/22 (2006.01); F23C 10/01 (2006.01); F23J 7/00 (2006.01); F23C 10/08 (2006.01); F23C 13/08 (2006.01)
CPC F02C 3/22 (2013.01) [C01B 3/36 (2013.01); F23C 10/01 (2013.01); F23C 10/08 (2013.01); F23C 13/08 (2013.01); F23J 7/00 (2013.01); C01B 2203/0255 (2013.01); C01B 2203/1241 (2013.01); F23C 2900/99008 (2013.01); Y02E 20/16 (2013.01); Y02E 20/346 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A process for in-situ removal of sulfur, oxygen transfer media production, and sour gas combustion using calcium looping combustion while producing a product stream, comprising the steps of:
calcining CaCO3 in an air reactor to produce a calcium-based transfer media;
transferring the calcium-based transfer media from the air reactor to a fuel reactor;
delivering sour gas into the fuel reactor;
reducing the calcium-based transfer media disposed within the fuel reactor to provide gas-phase oxygen;
oxidizing the reduced calcium-based transfer media with air in the air reactor to produce a calcium-based oxygen transfer media;
delivering the calcium-based oxygen transfer media from the air reactor to a riser;
transferring sour gas without H2S from the fuel reactor to the riser;
combusting the sour gas without H2S within the riser to produce the product stream which includes the reduced calcium-based transfer media;
removing the reduced calcium-based transfer media from the product stream;
re-oxidizing the reduced calcium-based transfer media with air in the air reactor to produce the calcium-based oxygen transfer media; and
delivering the calcium-based oxygen transfer media back to the riser.