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Gasification

Increasing the operational reliability of isolation valves during the gasification process

The slurry-fed system initially developed for the coal industry has been successfully extended to refining’s gasification process for the production of hydrogen, synthesis gas (low BTU fuel gas), steam, hydrogen, and power.

Over the past 20 years, MOGAS has worked continuously with the leading licensor of the gasification process to design trim and coating technology that significantly increases critical isolation valves’ operational reliability. In fact, in a recent achievement MOGAS extended the life of the Lockhopper valve system for de-slagging operations from 6 months to 5 years (and more than 150,000 cycles of operation), without any related valve or actuator failures.

Operating Conditions:
  • High Temperatures: 200–1200° F
  • Fine & Coarse Slag Service
  • High Cycles
  • Erosive Conditions
  • Temperature Cycling
  • Flashing Water Service
  • Chloride Corrosion
  • High Pressure Oxygen Service

Gasification Process Flow Diagram
  1. PetCoke / Coal Slurry
  2. Oxygen
  3. Gasifier Inlet
  4. Lock Hopper Inlet
  5. Lock Hopper Outlet
  6. Lock Hopper Purge Gas Inlet
  7. Lock Hopper Purge Gas Outlet
  8. Gasifier Outlet
  9. Syngas Cooler
  10. Char Recycle
  11. Filtration
  12. Syngas Scrubber
  13. COS Hydrolyzer
  14. Sour Water
  15. Cooled Acid Syngas
  16. Hydrogen Sulfide Absorber
  17. Hydrogen Sulfide Stripper
  18. Sulfur Heat Recovery 
  19. Claus Process
  20. Tailgas Compressor
  21. Sweet Syngas
  22. Moisturizer
  23. Heater
 
  • Heat Exchanger (not shown)
  • General Ball Valves (not shown)
 
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