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Comparing selective H/sub 2/S removal methods in CO/sub 2/ floods

Journal Article · · Pet. Eng. Int.; (United States)
OSTI ID:6031286
Presents case studies of processes chosen for H/sub 2/S removal, focusing on decision-driving criteria. Emphasizes that the criteria (ethane recovery incentive, fuel gas cost, capital available, and use of existing NGL plant) are not the only important variables to be considered in determining process selections and overall facility designs. H/sub 2/S content of the associated gas stream is typically about 3% at the beginning of the project, and is projected to decrease to about 0.5% at some point in time during the flood. Processes chosen for study are Benfield or Sulfinol gas treating with MDEA selective H/sub 2/S removal from CO/sub 2/ product stream; sour NGL recovery pretreatment plus Selexol selective H/sub 2/S removal from processed gas stream; Ryan/Holmes cryogenic fractionation processes plus DEA NGL product treating; and Benfield gas treating followed by Selexol selective H/sub 2/S removal from CO/sub 2/ product stream. Concludes that the variables discussed here seem to be the decision-driving forces that change most frequently between projects in this area.
Research Organization:
The Ortloff Corp., Midland, TX
OSTI ID:
6031286
Journal Information:
Pet. Eng. Int.; (United States), Journal Name: Pet. Eng. Int.; (United States) Vol. 54:10; ISSN PEEID
Country of Publication:
United States
Language:
English