The oil extracted from palm kernels is called palm kernel oil. The oil content of palm kernel is around 50%~55%. Fresh palm kernel oil is edible. Its high stability, free of cholesterol, free of trans fatty acids make it particularly popular in frying use and are good for human health.
In industrial production, palm kernel is used to make oil fatty acids, fatty alcohols, and glycerol. For cosmetic applications, the kernel oil is extracted and made into handmade soap, shampoo, laundry detergent, toothpaste and other personal care products and home care products. All in all, palm kernel oil is widely used in food, chemical, pharmaceutical, cosmetics, plastics and other industries.
Palm kernel oil refinery Main Process:
1. Degumming and deacidification: The gumming is moved by phosphoric acid and hot water.There are two ways to move the acid in the oil. One is chemical way, the other one is physical way. The chemical way is using NaOH to react with acid. This way is suitable for the capacity of 5-30T per day. The physical way is using steam and centrifugal to move the acid. This way is used for capacity from 30-2000T per day.
2. Deacidification ( neutralization): In this step free fatty acids are neutralized by using sodium hydroxide and convert them into soap. Additional impurities are also removed by adsorption on soap.
3. Decolorization : During decolorization, unwanted pigments are adsorbed physically and oil will become much clearer.
4. Deodorization: Deodorization is used to remove unacceptable odors by steam distillation, the odoriferous compound are stripped off with the help of live injected steam into heated oil under high vacuum pressure.