محطة معالجة زيت النخيل

As we know the refining of edible oil is basically divided into two parts: – Physical refining and Chemical refining. In both processes, deodorization steps are required but the working principle of deodorizer for both processes is a little bit different. In the physical refining, the FFA is removed in the Deo Section. Since palm oil is a hard oil, it requires physical refining due to the high FFA content in the crude palm oil.

Deodorization / De-acidification is done to remove the volatile components, mainly aldehydes and ketones, which cause for smell in refined oil. In the Deodorization process, free fatty acid is removed in the form of Palm fatty acid distillate as a refining waste.

Apart from the removal of free fatty acid, there are some impurities like carotenoid pigments, and primary and secondary oxidation products present in palm oil are also removed from refined Palm oil in this step. Deodorization is essentially a steam distillation process carried out at low pressures and elevated temperatures (180-220°C).

In the Physical palm oil refining process, the role of deodorizer is to strip free fatty acid, odor removal, and heat bleaching to cut the remaining color in bleached oil.

In chemical refining of palm oil, the role of deodorizer is odor removal, heat bleaching to remove the remaining color, and recovery of fatty acid distillate. The steam is injected in each compartment of our deodorizer so that an intimate mixing of oil and steam takes place. This arrangement of steam pipes makes the deodorization process more efficient.

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After the Deodorization section, the oil is first cooled by cold Fractionated oil for maximum regeneration of heat Palm Oil Fractionation machine. Then the same oil is cold by cooling tower water up to 40˚C to 45˚C. Then this oil is cooled by outgoing chilled fractionated oil from the filters. This oil is then chilled to fractionation temperature in the Crystallizers.

In the crystallizer proper residence time is given with maintaining the temperature of the oil, which results in the formation of wax/stearin crystals, and residence time, will give proper growth to the crystals. The step cooling is followed in the crystallizer for the complete maturation of the crystal which increases the efficiency of the Palm Oil Fractionation Plant. The oil is cooled with the tempered water and then it is further cooled to the final fractionation temperature by the Chiller water. The water is chilled in the chiller. There are mainly two kinds of chillers available in the market, one is the power chiller and another one is the vapor absorption machine. The VAM is widely used in order to avoid the use of refrigerant gases.

After obtaining the desired temperature inside the crystallizer the mixture is then fed to the Filter Press for the separation of Stearin from Palm Olein. The recovery of the Palm Olein does also depend upon the kind of filters used.

The complete operation is controlled by an Automatic Electronic Panel (PLC /SCADA). Mectech is one of the leading Palm Oil Processing Plant manufacturers/Palm Oil Fractionation Machine suppliers in India and abroad.

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