Edible oil refining is a process to remove impurities that are contained in crude oil obtained either from expellers or solvent extraction plant, and improve the functionality of the oils. These impurities include Moisture, Solids, Gums, Free-Fatty Acids (FFA), Waxes, and Compounds of Sodium, Potassium, Magnesium, Calcium, and other metals.
However, modern consumers think color, odor and taste are impurities, too. All these impurities are removed in a series of steps: degumming (to remove gums), deacidification (to remove FFA), decolorization (to remove color), deodorization (to remove odor and taste), and dewaxing or winterization (to remove waxes).
Our product range includes a wide range of edible oil refineries and vegetable oil refinery plant, which can be divided 1-20tpd batch type edible oil refining machine, 10-50tpd semi-continuous edible oil refinery plant and 30-1000tpd full-continuous edible oil refinery plant by type.
We can customize it for our customers according to actual calls to refine different kinds of crude edible oil, such as soybean oil, peanut/groundnut oil, sunflower oil, rice bran oil, corn oil, rapeseed oil, cottonseed oil, olive oil, palm oil, palm kernel oil, etc.
Oil refining is divided into physical methods, chemical methods and physical chemistry methods. For a certain crude oil, which methods should be used in the refining process, generally depends on the quality of crude oil, the application of refined oil, refining process budget and advanced nature of equipment, and both the refinery machine and entire oil refining line are available from us to do physical & chemical refining. The complete edible oil refining process mainly includes filtration, degumming, deacidification, vacuum dehydration, decolorization, deodorization, dewaxing and polishing filtration.