| Customization: | Available |
|---|---|
| After-sales Service: | 1 Year |
| Warranty: | 12 Months |
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A refining process for removing free fatty acids from oil by chemical method (acid-base neutralization).
The unit has the following characteristics:
1. Strong adaptability, the requirement for raw material crude oil is not high;
2. The product oil quality stability is good;
3. The investment is small, the effect is fast.
Main equipment:alkali refining pot, decolorization pan, deodorization pan, decolorization filter, vacuum system, heat transfer oil furnace, cold water system, and electric control system.
Flow chart(for example:palm oil)
1.crude palm oil hydrated
In crude oil most of impurity are phosphorus.
The existence of phospholipid and other colloidal substances can not only reduce the quality of oil, but also promote the transitional emulsification between oil and lye, increase the difficulty of separation of soap and aggravate the loss of neutral oil, so it should be removed first.
2.The deacification
Mainly to remove free fatty acids from crude oil, as well as a small amount of colloid, pigment and trace metal substances in oil.
De-acid operation is one of the important factors that directly affects the oil yield and quality of oil refined.
The most widely technology method is alkali refinery and deacification.
3.decolorizering process
The pigment and other impurities in sunflower oil, must be removed out,to meet the product quality standard.
While providing more favorable conditions for deodorization .
The decolorizering method comprises the following steps of: decoloring to obtain the final color index of the product; removing the related pigment and the amount of metal; and further removing the trace amount of soap, the phospholipid and other colloidal impurities and certain off-flavor substances remaining in the oil, removing the polycyclic aromatic hydrocarbon and the residual pesticide, and reducing the oil quality peroxide value.
4.Deodorizer process
The purpose of deodorizing of sunflower oil is to remove the odorous substances and other volatile substances from the oil, to improve the smell and color of the oil, and to improve the stability of the oil.
The peculiar smell of oil, the peculiar smell produced in decolorization, the odor of produced by oil oxidation, etc.
In the deodorization stage, these unpopular odors are required to be removed by steam distillation at vacuum high temperature.
5.Franctionation process
deodorized oil is heat exchanged with refrigeration liquid through plate heat exchanger. After the oil temperature drops to 8-25ºC (depend on the degrees inquired), it is pumped into the stainless steel crystallization tank. Under the action of stirring, the refrigerant is slowly cooled to 18ºC to form crystals.
The crystallization time is about 3 hours more.
The oil deodorized is fed into a crystal tank, and the crystal is maintained at a constant temperature ,then be filtered to obtain the starin,oleic.
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