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Gas Purification

Team Alpha Mentor: Patrick Shannon. Gas Purification . Recap. Roxana Kolatek (Team Leader) Corey Lee Shakeeta Brown Ivan Silakov (Scribe). 2050TPD to Front End Ammonia 850 MMBTU/Hr To CHP 1050 BTU/SCF to 10,000 Homes. Block Flow Diagram. Natural Gas. Gas to CHP.

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Gas Purification

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  1. Team Alpha Mentor: Patrick Shannon Gas Purification

  2. Recap • Roxana Kolatek (Team Leader) • Corey Lee • Shakeeta Brown • Ivan Silakov (Scribe) • 2050TPD to Front End Ammonia • 850 MMBTU/Hr To CHP • 1050 BTU/SCF to 10,000 Homes

  3. Block Flow Diagram Natural Gas Gas to CHP Acid Gas Dry Sweet Gas Sweet Gas Sweet Gas Wellhead Gas NGL Removal Gas Sweetening Dehydration Compression Water NGL

  4. Gas Sweetening ASPEN Simulation • Not Able To Simulate In ASPEN • Stuck On First Absorber • Believe Reaction In The Absorber Is Not Inputting Properly • Using Electrolyte-NRTL Package • Mass Balance Converging • Components In The Wrong Streams

  5. Gas Sweetening Flow Sheet

  6. Sweetening Material Balance

  7. Approx Energy Sinks & Loads • Need 1,397 lbs Steam/Hr At 300 PSI For Reboiler

  8. Glycol Dehydration Flow Sheet

  9. Dehydration Aspen Results

  10. Dehydration Aspen Results Cont.

  11. Glycol Dehydration ASPEN Simulation • Using SR-Polar Thermodynamic package • Results are very similar to hand calculations • 795.80 lb/hr water removed – Hand Calc. • 750.01 lb/hr water removed – Aspen Plus • Recovered 93.8% of TEG solvent

  12. Dehydration Energy Sinks & Loads

  13. NGL Extraction Flow Sheet

  14. NGL Extraction Aspen Results

  15. NGL Extraction ASPEN Simulation • Peng-Robinson Thermodynamic Package • Hand Calculations Correlate With Aspen Simulation • 79% Ethane Results In Distillate Stream – Hand Calc. • 77% Ethane Results In Distillate Stream – Aspen Plus

  16. NGL Energy Sinks & Loads

  17. Economics Sweetening Process • Sweetening Process Could Not Be Modeled On Aspen • Generally Sweetening Process Is Very Similar To Dehydration • Modeled One Heat Exchanger • 180 sq ft

  18. Economics Compression System

  19. Economics Glycol Dehydration

  20. Economics NGL Extraction

  21. Project Capital Summary

  22. Project Results Summary

  23. Economics of Streams

  24. Life of the Project • Operating for 20 years • Net Profit: 209 MM$ / year • Total Net Profit for the Life of the Plant: 4180 MM$

  25. Future Focuses • Updated And Integrated Aspen Simulations • Successful Simulation Of Gas Sweetening • Determine Placement Of Compressor • Finalize Aspen-Icarus Economics • Determine New Composition And Value For Front-end Ammonia

  26. QUESTIONS?

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