Case Study

Flare Minimization Blowdown

Do you have capacity and temperature issues when flaring?

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Flareless Chemical Cleaning:

  • Predictable alternative to flare during vapor phase unit decontamination
  • Evacuation with steam, nitrogen, or liquid pump down to external storage (frac) tanks of liquid and vapor phases
  • Vapor phase may be the only purged material

Vapor Point Advantages:

  • Allows for complete discharge (vapors) of operating equipment while recovering emissions
  • Higher deinventory flow rates and pressures versus limits by conventional storage equipment (frac tanks at 1 PSI max.)


  • Improved unit deinventory performance/ cleaning
  • Decreased downtime

Flare Gas Recovery Limited Capacity or Availability During Turnarounds:

  • Flare gas loading during turnarounds can reach the capacity of the flare unit and affect continuing process operations
  • Fugitive emissions of VOCs, H₂S, Benzene, HAPs, etc.
  • Compressor typically temperature limited
  • Maintenance ability to isolate “high loading” vapor emission units which can cause upsets to entire facility
  • Shutdown schedule optimization

FGR Alternative Turnaround Advantages & Results:

  • Allows for point source controls of high emission loading unit blowdowns
  • Non-combustion source can be placed close to operating units
  • Ability to design larger flow units to accommodate high flowrates / high-loading turnarounds
  • Pressure vessel allows for increased purge pressures and flows
  • Liquid levels managed by Vapor Point Technicians
  • Treating of vapor flows, and reduction in flaring / FGR loading

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