HTSC Computer Controlled Horizontal Three-phase Separator



General Description

The Computer Controlled Horizontal Three-phase Separator, "HTSC", designed by EDIBON, is a unit that allows the study of the main characteristics of gravity separation and the effect of viscosity, flow and density difference in this separation.

Two computer-controlled pumps drive water and oil to a point of mixing that also reaches a current of air produced by a computer-controlled blower.

There are two level switches, one in each feed tank, to ensure the correct level for proper functioning of the fluid circulation pumps.

The mixture of water, oil and air enters the horizontal separator going towards its spherical part to force the first separation.

Next, the first coalescent element is encountered and the secondary separation section is started.

In this section you can place two interchangeable configurations of separators, one type dump and another type dump-deposit, whose heights in the tank can be easily adjusted manually. Here the speed of the fluids slows and they separate by gravity. The water begins to be the heaviest phase and remains in the bottom while the oil floats on it and the air occupies the available space in the tank.

For the separation of the air there is a fog extractor in its upper part.

By means of two overflow type outlets both water and oil separate phases are extracted, to return each one to its deposit. Both the flow rates and the levels in the tank can be controlled.

By means of three temperature sensors, it is possible to know both the water and oil inlet temperatures and the temperature in the separator.

This Computer Controlled Unit is supplied with the EDIBON Computer Control System (SCADA), and includes: The unit itself + a Control Interface Box + a Data Acquisition Board + Computer Control, Data Acquisition and Data Management Software Packages, for controlling the process and all parameters involved in the process.

Exercises and guided practices


  1. Analysis of the design principles and control parameters of a three-phase separator.
  2. Study of the separation of 2 immiscible liquids.
  3. Study of the influence of the viscosity of the oil in the separation.
  4. Study of the influence of the flow rates in the separation.
  5. Study of the influence of the density difference in the separation.
  6. Study of the Influence in the separation of a variation in the water cut.
  7. Study of different separating landfills.
  8. Study of the influence on the residence time of a variation in the water cut.
  9. Study of the influence of the water / oil ratio on residence time for separation.
  10. Study of the influence of gravity separation in small increments of specific gravity.
  11. Study of the influence of the medium in continuous phase in the distribution and size of the drops.
  12. Study of the influence of the flow in the formation of emulsions.
  13. Study of different stable and unstable emulsions.
  14. Sensors calibration.


  1. Many students view results simultaneously. To view all results in real time in the classroom by means of a projector or an electronic whiteboard.
  2. Open Control, Multicontrol and Real Time Control. This unit allows intrinsically and/or extrinsically to change the span, gains, proportional, integral, derivative parameters, etc, in real time.
  3. The Computer Control System with SCADA allows a real industrial simulation.
  4. This unit is totally safe as uses mechanical, electrical/electronic, and software safety devices.
  5. This unit can be used for doing applied research.
  6. This unit can be used for giving training courses to Industries even to other Technical Education Institutions.
  7. Control of the HTSC unit process through the control interface box without the computer.
  8. Visualization of all the sensors values used in the HTSC unit process.
  9. By using PLC-PI additional 19 more exercises can be done.
  10. Several other exercises can be done and designed by the user.




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