As we all know, crude oil comes from oil crops or animals.
Commonly available on the market are soybean oil, peanut oil, sunflower oil, palm oil, olive oil, sesame oil, rapeseed oil, walnut oil, corn germ oil, linseed oil, castor oil, safflower oil, rice bran oil , lard and so on. These kinds of crude oils on the market all can be refined by the Oil Refining Equipment by our Glory Oil & Fats Engineering Co., Ltd, the effiect of refined are very good.
The refining process generally includes four steps: degumming, deacidification, decolorization, and deodorization．
Degumming is the removal of phospholipids in crude oil. These impurities will not only damage the stability of oil storage, but also affect subsequent refining steps, so they are removed first.
Unrefined crude oil contains free fatty acids, which will make the oil easily rancid, so it needs to be deacidified to remove free fatty acids. Add alkali (sodium hydroxide NaOH) to produce soapstock through the saponification reaction to remove acidic substances in the oil. The soapstock will also absorb other suspended impurities and remove them.
Add activated clay or activated carbon for decolorization to absorb and remove the pigments in the oil. One can make the oil sell in line with consumers’ preferences, and the other can extend the shelf life of oil products.
Deodorization uses low-pressure vacuum heating and hot steam to remove odor molecules in oil to achieve deodorization effect.
If you are interested in oil equipment or want to press oil or refine refined oil, you can contact us at any time. We will try our best to give you the best solution.
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Email: market@doingoilmachine.com
http://www.edibleoilrefinerymachine.com
