Palm oil refining methods
The purpose of palm oil refining :
Palm oil refining process refers to a series of refining processes that can remove phospholipids, FFA, pigment, off-flavor and other impurities in the palm oil. Palm oil refining process or vegetable oil refinery is essential to ensure removal of gums, waxes, phosphatides and free fatty acid (F. F.A.) from the edible oil. To impart uniform color by removal of coloring pigments and to get rid of unpleasant smell from the palm oil by removal of odiferous matter.
Palm oil refining process:
Palm oil refining usually includes the following sections: degumming and deacidification, decolorization, deodorization and fractionation. Palm oil refining method is according to different usages and requirements , utilizing the physical methods and chemical processes to get rid of the harmful impurities and needless substance in the crude palm oil , getting some standard oil .
Palm oil refining process
Refining methods for palm oil refining:
There are two refining methods for the palm oil refining in the palm oil refinery plant. They are physical refining and chemical refining. Physical refining means removing gum in palm oil during process of degumming in special method and removing FFA in process of deodorizing by steam. Chemical refining, however, means removing FFA in a chemical way ( Acid-base neutralization). Gum and soap foot produced is separated by centrifuges.
Palm oil refining - Chemical Refining
1.The finished oil is consistent and stable.
2.Excellent adaptability and less requirement to oil quality.
3.Less bleaching earth is added into compared with physical refining.
Palm oil refining - Physical Refining
1.High oil refining rate, less oil loss.
2.No waste water discharged.
3.Especially suitable for oils of high acid value, and low gum content.
4.More FFA distilled out.
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