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Deasphalting

Full-ported valve design and purging provides 100 percent reliability in asphaltene applications

When producing deasphalted oil (DAO) for hydroprocessing and catalytic cracking, the deasphalting process naturally creates heavy asphaltene buildup.

MOGAS' C-Series full-ported valve design offers 100 percent reliability in all asphaltene and DAO applications. That’s because MOGAS valves are equipped with a continuous, intermittent purge system that removes troublesome asphaltene build-up from seats and body cavities.

Operating Conditions:
  • High Temperatures: 500– 900° F
  • Coking Service
  • Temperature Cycling
  • Erosive Conditions
  • Asphaltene Formation

 
Deasphalting Process Flow Diagram
  1. Feed
  2. Steam
  3. Make-up Solvent
  4. Deasphalt Oil / Asphaltine Separator
  5. Asphalt / Asphaltine Separator
  6. Solvent / Deasphalt Oil Separator
  7. ROSE® Exchanger
  8. Deasphalt Oil / Deasphalt Oil Separator
  9. Deasphalt Oil Flash Drum
  10. Asphaltine Flash Drum
  11. Solvent Recycle
  12. Deasphalt Oil Stripper
  13. Asphaltine Stripper
  14. Stripper Solvent Condesor
  15. Low Pressure Solvent Drum
  16. Asphaltine Product
  17. Deasphalt Oil Product
 
  • Heat Exchanger (not shown)
  • General Ball Valves (not shown)