Gravity Separation of Biokem

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Gravity Separation of Biokem
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• As already mentioned, free water in the system
  will settle to the bottom of the tank (assuming
  the specific gravity of water is greater than the
  lubricant). The time it takes the water to
  separate will depend on the systems temperature,
  as well as the additive formulation, age of the
  oil and the base oil type.

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• Some oils are designed to hold water in
  suspension rather than to allow it to separate
  out, making gravity separation a
  less-than-effective strategy.

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• In basic systems, opening the drain valve and
  allowing the water to drain off may be
  sufficient.

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• The effectiveness of this action, however, will
  depend upon how long the system was allowed to
  stand prior to draining the water, whether the
  temperature was low enough to lower the
  saturation point dramatically and the oils
  demulsibility characteristics.

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• Lowering the saturation point helps ensure that
  as much of the water as possible will exist in
  the Free State. In larger volume systems, a
  separate settling tank may be employed to allow
  the oil to cool and demulsify prior to water
  removal (Figure 1).

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• The major downside to this method is that it
  removes only free water, so elements of
  emulsified and dissolved water will remain. The
  upside is the low cost of water removal.

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• For more information, visit us

http//www.biokem.com.au/