Patent ID: 9149761
Filing Date: 2015-10-06
Classification: B01D,C01B,E21B,Y02C,Y02P

Abstract:
1. A gas processing facility for processing a hydrocarbon gas stream comprising sulfurous components and carbon dioxide, the gas processing facility comprising: an acid gas removal facility for separating the hydrocarbon gas stream into (i) a sweetened gas stream, and (ii) a first acid gas stream comprised primarily of hydrogen sulfide and carbon dioxide; a sulfur recovery unit for receiving the first acid gas stream, and separating the first acid gas stream into (i) a liquid stream of elemental sulfur, and (ii) a tail gas comprising acid gas impurities; a tail gas treating unit having a reducing gas generator and a catalytic bed to hydrogenate the tail gas, an absorber vessel, and a solvent regenerator vessel, where the tail gas treating unit receives the tail gas and separates the tail gas into (i) an overhead by-products stream from the absorber vessel, and (ii) a second acid gas stream from the regenerator vessel, where the second acid gas stream is a carbon dioxide-rich gas stream; and a compressor station for receiving the second acid gas stream from the regenerator vessel, and providing pressure to the second acid gas stream for injection into a subsurface reservoir.