US 11,898,103 B2
Systems and process for controlling a sulfur extraction from a hydrocarbon stream
Jessy E. Trucko, Lake Forest, IL (US); Yili Shi, Buffalo Grove, IL (US); and Keith Lehuta, Chicago, IL (US)
Assigned to UOP LLC, Des Plaines, IL (US)
Filed by UOP LLC, Des Plaines, IL (US)
Filed on Aug. 17, 2022, as Appl. No. 17/820,275.
Claims priority of provisional application 63/263,256, filed on Oct. 29, 2021.
Prior Publication US 2023/0138459 A1, May 4, 2023
Int. Cl. C10G 21/30 (2006.01); C10G 27/04 (2006.01); G05B 15/02 (2006.01); C10G 53/14 (2006.01)
CPC C10G 21/30 (2013.01) [C10G 27/04 (2013.01); C10G 53/14 (2013.01); G05B 15/02 (2013.01); C10G 2300/202 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A process for removing sulfur compounds from a hydrocarbon stream, the process comprising:
extracting sulfur compounds with a caustic stream from a hydrocarbon feed stream to provide a treated hydrocarbon stream and a rich caustic stream;
obtaining a data, regarding the rich caustic stream, comprising a concentration of sulfurs species and degree of caustic saturation with the sulfur species in the rich caustic stream;
oxidizing the sulfur compounds in the rich caustic stream in a presence of a catalyst to provide a lean caustic stream;
comparing the data regarding the rich caustic stream to a second data; and,
based on the comparing, recommending at least one change to an operating condition associated with the process for removing sulfur compounds from the hydrocarbon stream.