Skip to content

Problem

Gas/Liquid Turbulent Mixing: A Japanese contractor, working on a heavy oil upgrading project in Korea, required a cost effective method of intimately contacting a two phase gas / liquid system. Expensive large diameter towers with complex internal packing were considered to be unsuitable because of the very corrosive nature of the fluids and the high operating pressures. Contacting would have to be equally effective under two operating conditions; normal operation and regeneration operation.

Solution

Gas/Liquid Turbulent Mixing: Statiflo was approached to design an inline Motionless Mixer with diameter identical to the connecting 26” pipe, suitable for operation at 175 kg/cm²G & full vacuum at 165°C. High pressure flanges were required with internal mixing elements specified in Incoloy 800. Mixer housing was to have Incoloy 800 overlay on carbon steel.

Due to the high operating pressure and very corrosive service, rigorous quality control and testing were essential.

Result

The close to ideal plug flow characteristic and intense radial mixing in the Statiflo Motionless Mixer resulted in a predictable and narrow droplet size distribution of liquid in gas. Contacting was optimised in a relatively low cost inline design in corrosion resistant construction. Energy consumption, in terms of pressure drop, was extremely low and well within the capabilities of the existing pumping systems.

STATIFLO MOTIONLESS MIXER FEATURES OF PRIMARY IMPORTANCE IN THIS CASE STUDY

  • Low installed cost
  • No moving parts for maintenance free operation
  • Consistent and predictable performance
  • Approaches ideal plug flow
  • High area of contact between phases
  • High QA /QC manufacturing standards
  • Corrosion resistant, high pressure design
  • Low pressure drop

Other Statiflo Features

  • Completely sealed system
  • Available in all sizes
  • Eliminates radial gradients
  • Available in any material
  • Low shear mixing
  • Allows representative sampling immediately downstream
  • No direct energy supply
  • Available worldwide
  • Low installed weight
  • Space saving custom designs in pipe bends
  • Does not require downstream straight pipe for best performance
Icon

Case Studies - Hydrocarbon Pack 298.28 KB 876 downloads

...
Back To Top