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New Technology: Saudi Aramco High Pressure Air Assist System (HPAAS) for Upgrading Existing Flares to Smokeless Combustion 2009 ZEECO, INC. World Flaring 2009 ZEECO, INC. Source:: US Government Accountability Office World Flaring


  1. New Technology: Saudi Aramco High Pressure Air Assist System (HPAAS) for Upgrading Existing Flares to Smokeless Combustion  2009 ZEECO, INC.

  2. World Flaring  2009 ZEECO, INC. Source:: US Government Accountability Office

  3. World Flaring Source: A Twelve Year Record of National and Global Gas Flaring Volumes Estimated Using Satellite Data Final Report to the World Bank - May 30, 2007  2009 ZEECO, INC. Source:: US Government Accountability Office

  4. Utility Flares  2009 ZEECO, INC.

  5. Utility Flares - Drawbacks  Low Exit Velocity leads to:  Smoke  Flame Pulldown  Shorter Tip Life  Higher Radiation Levels  Flame Lean  Higher Flame Emissive Value  2009 ZEECO, INC.

  6. Utility Flares – Smoke  2009 ZEECO, INC.

  7. Utility Flares – Smoke Poor Public Perception  2009 ZEECO, INC.

  8. Utility Flares – Flame Pulldown Crack due to heat WIND WIND  2009 ZEECO, INC.

  9. Utility Flares – Higher Radiation Levels HIGH EXIT VELOCITY FLAME LOW EXIT VELOCITY FLAME WIND WIND  2009 ZEECO, INC.

  10. Solution Needed for Saudi Aramco’s Utility Flares  Hundreds of flare systems in operation.  Most Aramco systems are utility flares  2009 ZEECO, INC.

  11. Solution Needed for Saudi Aramco’s Utility Flares  Criteria for ideal solution:  Easy retrofit to existing flares with minimal installation time  Robust design  Low installation and capital cost  Low utility costs for operation  2009 ZEECO, INC.

  12. Solution Needed for Saudi Aramco’s Utility Flares  Analysis of Existing Technology  Steam-Assisted Flares  High-Pressure Sonic Flares  Low-Pressure Air Assisted Flares  2009 ZEECO, INC.

  13. Existing Technology: Steam Assist  2009 ZEECO, INC.

  14. Existing Technology: Steam Assist  Inject steam into combustion zone  Steam entrains surrounding air  Smokeless Operation  Minimal Flame Pulldown  Low Radiation  DRAWBACKS:  No Steam Available  Expensive Water  2009 ZEECO, INC.

  15. Existing Technology: HP Sonic Flare  2009 ZEECO, INC.

  16. Existing Technology: HP Sonic Flare  Use the pressure in the flare gas to achieve a high exit velocity  High velocity flare gas entrains surrounding air  Smokeless Operation  Minimal Flame Pulldown  Low Radiation  DRAWBACKS: Most Saudi Aramco facilities were designed with  low pressure relief systems  2009 ZEECO, INC.

  17. Existing Technology: Low Pressure Air Assist GAS PLENUM AIR PLENUM  2009 ZEECO, INC.

  18. Existing Technology: Low Pressure Air Assist  Use a low-pressure blower to inject additional combustion air  Assist air entrains some air from the AIR surroundings DUCT GAS  RISER Smokeless Operation  Minimal Flame Pulldown  Low Radiation  DRAWBACKS: AIR BLOWER Poor retrofit for existing flares  because the air duct is so large. Loss of cooling air exponentially  reduces service life of flare tip.  2009 ZEECO, INC.

  19. Saudi Aramco Solution: HPAAS  High Pressure Air Assist System  Developed and tested at Saudi Aramco’s facilities  Invented by Mazen Mashour of Saudi Aramco  Patented Technology  2009 ZEECO, INC.

  20. Saudi Aramco Solution: HPAAS Compressed Air Buffer Tank Air Control System  2009 ZEECO, INC.

  21. HPAAS Animation  2009 ZEECO, INC.

  22. HPAAS Flare Tip Components Windshield Air High Pressure Air Line Injection Manifold Flare Tip Barrel  2009 ZEECO, INC.

  23. HPAAS Advantages  Quick and Easy Retrofit  Robust Design  Minor Impact to Existing Flare Structures  2009 ZEECO, INC.

  24. HPAAS Advantages: Quick and Easy Retrofit  Flare tip bolts in place  3” or 4” air supply line added to flare stack  Air compressor can ship as a modular unit  Average installation time 3 DAYS  2009 ZEECO, INC.

  25. HPAAS Advantages: Robust Design Low-Pressure Air HPAAS Flare Assist Flare Design Design Flare tip damage due to loss of cooling air. HPAAS tip can be operated for long periods of time with NO cooling air.  2009 ZEECO, INC.

  26. HPAAS Advantages: Minor Impact to Existing Flare Structure Low-Pressure Air HPAAS Flare Design Assist Flare Design Flare Gas Riser Air Duct Air Line New Guy Wires and Foundations To Air Supply  2009 ZEECO, INC.

  27. HPAAS Awards  Gold Medal at 2006 Saudi Inventors Convention  Excellent Achievement Award from the Malaysian Association of Research Scientists in 2006  Gold Award and 2 nd Place Overall at Geneva's 34th International Inventors' Conference in 2006  Winner of 2007 Arab Thought Foundation’s Innovation Award  2009 ZEECO, INC.

  28. Zeeco Southern Area Smokeless Upgrade Project  Upgrade Twenty-nine (29) Flare Systems in the Saudi Aramco Southern Area Development  HPAAS Smokeless Flare System Upgrades  CFD Modeling  Combustion Testing  New Flare Pilots  New FFG Ignition Systems  Retractable Thermocouples  2009 ZEECO, INC.

  29. HPAAS Design Verification  Key Design Parameters Provided by Saudi Aramco  2009 ZEECO, INC.

  30. Testing & CFD Modeling – Supersonic Nozzles Mach Number  2009 ZEECO, INC.

  31. CFD Modeling – Cold Flow Modeling for System Layout  2009 ZEECO, INC.

  32. CFD Modeling – Combustion Model Without HPAAS Air Assist With HPAAS Air Assist  2009 ZEECO, INC.

  33. Full-Scale Combustion Testing  2009 ZEECO, INC.

  34. Full-Scale Combustion Testing With HPAAS Air Assist Without HPAAS Air Assist  2009 ZEECO, INC.

  35. Full-Scale Combustion Testing With HPAAS Air Assist Without HPAAS Air Assist  2009 ZEECO, INC.

  36. Full-Scale Combustion Testing: Video  2009 ZEECO, INC.

  37. Field Success!!! Without HPAAS Air Assist With HPAAS Air Assist  2009 ZEECO, INC.

  38. Field Success!!! With HPAAS Air Assist Without HPAAS Air Assist  2009 ZEECO, INC.

  39. Future of HPAAS: Saudi Aramco Licensee Agreement  2009 ZEECO, INC.

  40. Future of HPAAS: Zeeco Al-Rushaid Middle East Ltd.  2009 ZEECO, INC.

  41. Future of HPAAS: Advantages of HPAAS  Easy retrofit to existing flares with short installation time  Robust design  Adaptable to range of conditions  Minor impact to existing flare structures  Low installation and capital costs  Low operating costs  2009 ZEECO, INC.

  42. Future of HPAAS: Applications for HPAAS  Retrofits to existing flare systems anywhere  New Installations  Middle East  Russia  Africa  South America  Canada  Offshore Platforms / FPSO  2009 ZEECO, INC.

  43. Contact Information  Zeeco USA Headquarters / Zeeco Al-Rushaid Middle East – Greg Seefeldt  Zeeco Houston – Scott Reed  Zeeco Europe – Nigel Palfreeman  2009 ZEECO, INC.

  44. Thank You IFRF!!!  Questions???  2009 ZEECO, INC.

  45.  2009 ZEECO, INC.  2009 ZEECO, INC.

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