Sour Condensate Sweetening Unit
Sour Condensate Sweetening Unit
(OP)
I'm involved with an Oil Compnay and their oil/gas fields are producing sour gas and condensate with high concentration of H2S and CO2 the Company are planning to install sour condensate treatment facilities near these Oil/Gas Fields and we hope to find the best available technologies to treat the condensate and the best compnay to handle such project with an estimate of the cost if its possible. I hope that you have any suggestion for this project.
The treatment facilities should process 10,000 Barrels per day (BPD) of sour condensate with the following specifications:
Feed Specs:
Pressure: 750-1050Psig
Temperature: 40-50oC
H2S: 4-5% (mole)
CO2: 5-6.5% (mole)
Sweet Condensate Specs:
H2S (Max): 100ppm (mole%)
CO2: 0.5 mole%
The treatment facilities should process 10,000 Barrels per day (BPD) of sour condensate with the following specifications:
Feed Specs:
Pressure: 750-1050Psig
Temperature: 40-50oC
H2S: 4-5% (mole)
CO2: 5-6.5% (mole)
Sweet Condensate Specs:
H2S (Max): 100ppm (mole%)
CO2: 0.5 mole%





RE: Sour Condensate Sweetening Unit
RE: Sour Condensate Sweetening Unit
1) Caustic units (MEROX)
2) Amine units (DEA)
3) Solid Adsorbents (e.g. mole sieves)
Caustic units are non-regenerable. You can calculate theoretical consumption of NaOH based on your feed flowrate and sour component composition, and then you can easily estimate if this is feasible option or not. In addition, handling of waste qaustic is a serious environmental issue and it might open the requirement for caustic treatment unit. The advantage of caustic processes is high efficiency; NaOH is a strong base.
Amine units are applicabe for much more narrowed range of feed (types). Handling heavy condensates is not likely to be preferred option - especially if density of condensate approaches amine solution density. Avoid liquid-liquid systems if you are dealling with the condensate with high distillation end-point.
Mol-sieves are specific, and they are not recommended for bulk acid components removal. Furthermore, side-reactions (coking COS formation etc.) are possible.
Try to approach various vendors (UOP, BASF, Shell) and seek for the most suitable technology for your application. If there is any.
Best regards,
RE: Sour Condensate Sweetening Unit
BUT, if the specs allow for those sulphur critters, then stick with amine.
RE: Sour Condensate Sweetening Unit
Interesting comment from your side. I have good experience with MEROX units, as far as H2S removal from refinery streams (LPG, Naphtha, Kerosene) is concerned. Can you put some more lights on what exactly you were thinking about?
Regards,
RE: Sour Condensate Sweetening Unit