palm oil degumming process

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Typical Proceess of Palm Oil Refining

Generally, palm oil refining process includes: degumming, deacidification, decolorizing, deodorizing. Some of palm oil processing plant may also have fractionation process to enrich the final palm oil products. The following is some knowledge on palm oil degumming, which is generally the first refining process of crude palm oil

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small palm oil refining plant
Small Palm Oil Refining Plant
large edible oil refinery plant
Large Palm Oil Refining Project
Technically, degumming of palm oil is referred as an operation of purification in palm oil refining process, since crude palm oil (CPO) normally contains impurities in the colloidal state or dissolved in them. In degumming process, phospholipids featured of strong emulsifying action are removed by a variety of treatments. The objective is achieved by treating the CPO with specified quantity of food grade acid, normally phosphoric or citric acid of certain concentration, either singly or in combination. The precipitated materials are then removed by centrifuging, filtering or adsorption. In short, degumming of palm oil is a process of removing unwanted gums, so that to ensure the stability of the palm oil in later stage of refining plant.

Palm Oil Degumming Process (Dry Degumming)

Dry degumming is widely applied in refining low phosphatide oil such as palm oil, or used for preparing oils for further physical refining. Gums are removed through precipitation by acid conditioning and via filtration in the bleaching process, rather than centrifugal separation. It is a well-proven degumming method featured of cost effective. Below shows the flow diagram of dry degumming process of palm oil refining.

palm oil degumming process

Degumming Process of Palm Oil Refining Plant

Dry degumming process of palm oil: For crude palm oil refining plant, drying degumming process is suggested. Classically, crude palm oil is first mixed with about 0.05– 0.1% concentrated phosphoric acid. Then, after a short retention time, about 1 or 2% acid-activated bleaching earth is added under vacuum at a temperature of 80–120℃. After a suitable contact time, the spent earth is removed by filtration. Phosphoric acid is mainly used by palm oil refiners especially in Malaysia, due to economical reasons. However, citric acid is also used in some cases. The critical factor affecting the quality of refined palm oil is the introduced amount of acid. Either over or under dosage can lead to darkening and offflavor problems of the RBD palm oil.

palm oil mill plant
Palm Oil Mill Plant
Except dry degumming, there are also other types of degumming methods applied in vegetable oil refining plant, such as water degumming and acid degumming. The main differences between these types lie in processing method and chemicals used. Besides, the selection degumming method is based on the content of phosphatides in the crude oil.

Water Degumming: Water degumming is suggested for refining crude oil with phosphorus content around 200ppm, such as soybean oil. The crude oil is firstly go through precipitatation by pure water hydration. Then gums are removed from the crude oil by using the principle of centrifugal separation. Water is the key agent in this degumming process. Below shows the flow diagram of water-degumming process of oil refining plant.

Acid degumming: Through acid conditioning process, gums are precipitated from the crude oil and then be removed by centrifugal separation. It is normally used in refining process of rice bran and sunflower oil.

Feel free to contact us if you are interested in detailed information about our refining solution of crude palm oil. We are always at your services!

  • I would like to visit your factory to arrange for a 20 tons daily capacity crude palm oil degumming and deodorizing plant. I live in the USA but this plant will be installed in Africa. So as soon as you can set up a date for me to visit your factory, I will be there. Thanks.
  • Hello, dear. It would be great if you can visit our factory in person. We already send the details to you. By the way, our company also have set up palm oil refining plant projects in Africa, like Nigeria. We also can arrange you to visit these finished projects, which is now running well. If yes, please let us know.
  • Hi! I'd like to inquire and request for a quote for a Palm Oil Refinery Plant. Our proposed factory will be in the Philippines.
  • Good morning, sir. Thanks for your inquiry of our palm oil refining plant. Philippines has rich oil palm and it is great choice to start palm oil business in Philippines. But, in order to provide you the exact cost, along with shipping price and installation cost, please let us know you preferred capacity.
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