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Hydrotreating

Providing the highest-quality catalyst withdraw and addition valves for the hydrotreating process

Hydrotreating, the most widely used process to remove sulfur and nitrogen from refinery streams, often requires that a guard-reactor system be put in place to prevent poisoning the hydrotreating catalyst. In turn, the collection of heavy metals on the catalyst can frequently cause the guard reactor to be offline for maintenance.

Now, licensors are developing new methods for loading guard reactors with fresh catalyst without requiring a unit to be offline. And MOGAS is there to make sure these innovations are equipped with the highest-quality catalyst withdraw and addition valves.

Operating Conditions:
  • High Temperatures: 300 – 1000° F
  • High Pressure: 1000 – 3500 psi
  • High Pressure, High Temperature Hydrogen
  • High Pressure, High Temperature Catalyst Handling
  • Coking Service
  • Asphaltene Formation
  • Viscous Sludge
  • Ammonium Bisulfide Corrosion
  • Hydrogen Sulfide Corrosion
  • Polythionic Acid Corrosion

Residual Hydrotreating Process Flow Diagram
  1. Chopper
  2. Guard Reactor Isolation / Catalyst Addition
  3. Guard Reactor Isolation / Catalyst Withdrawal
  4. Recycle Gas Compressor Surge
  5. Rich Amine Isolation
  6. Sour Water Isolation
  7. Cold High Pressure Separator Automated LCV Isolation
  8. Cold High Pressure Separator Manual LCV Isolation
  9. Hot High Pressure Separator Automated LCV Isolation
  10. Hot High Pressure Separator Manual LCV Isolation
  11. Stripper Bottoms Emergency Block
  12. Stripper Bottoms Pump Isolation
  13. Unit Depressurization