Pressure Leaf Filter For Crude Oil Filtration - OIL MILL Filter
Oil recovered from expeller contains sediments and impurities such as:-
- Sediments- Solid Impurities
- Mucilaginous material, phosphates peroxides etc.
- Volatile Impurities (Water solvent ether etc.)
A common/ traditional method is used to separate these impurities, which is compartment settling. This method does not remove all the particles. It is therefore important to remove these impurities before refining.
Below table describes the difference,
BEFORE FILTRATION
Sludge formation in storage tanks- Hence Regular cleaning is needed.
Higher Oil losses during neutralization stage
Centrifugal separators bowl clogging frequently because of solid particles
Higher volume of bleaching earth is needed for sediment removal.
AFTER FILTRATION
Storage tank remains clean and less frequent maintenance is needed.
Low soap content is generated, more oil recovery
Reduces load on Centrifugal separators
Reduces bleaching earth consumption.
A Vertical Leaf Filter or Horizontal Leaf filter with special filtration mesh is used for Crude Oil Filtration. Filtrex Industries has implemented VPLF in a cotton seed oil, below is the results
CASE STUDY
A Cotton seed oil manufacturer based in Adoni, Andhra Pradesh- India was expelling 200 Metric Ton cotton seeds per day, through 10 Expellers. Oil was then transferred to multiple compartments for settling, Filtrex special VPLF was introduced before neutralization.
- • 1% oil recovery was recorded from per day oil production. i.e. 2 TON OIL per day.
- • Oil recovery reduces the amount of soap generated during neutralisation process, hence handling cost is also reduced.
This technology should be implemented in every oil mill in Andhra Pradesh