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Palm oil production process and equipment configuration

September 14, 2021

The palm oil production process mainly includes: pressing section, refining section and sub-extraction section. The pressing section is the process of extracting palm oil from palm fruit; the refining section is the process of refined processing of palm oil and removing impurities; the sub-extraction section is the deep processing of palm oil, increasing the storage time of palm oil and speeding up the clarity of palm oil the process of. Next, the editor of Henan Zhongxing Grain and Oil Machinery will introduce you the palm oil production process and equipment in detail:

 Palm oil production process

1. Process flow of palm oil squeezing section:

Raw material receiving, sterilization, de-fruiting, crushing, squeezing, filtering, palm kernel recycling


1. Receipt of raw materials:

At first, the palm fruit bunch is weighed to facilitate settlement and subsequent processing cost accounting, and then it is screened to remove impurities and then sent to the sterilization tank. The intermediate process from picking to sterilization should not be too long to avoid rancidity of palm fruit and affect the quality of palm oil. It is recommended to build a plant closer to the palm orchard to facilitate the picking of palm fruit bunches and save transportation time.


2. Sterilization section:

The palm fruit bunch needs to be steamed at high temperature and high pressure for about 60 minutes to enter the sterilization tank to prevent the free fatty acid content in the oil from increasing, and at the same time make the palm fruit soft, facilitate mechanical threshing, and reduce the damage of the palm fruit.


3. Fruit removal section:

After being beaten and sieved by the threshing machine, the palm fruits and fruit bunches are separated. The palm fruit enters the pressing section, and the empty fruit bunch is recycled as fertilizer or fuel.


4. Mashing section:

After being stirred and squeezed by the crusher, the palm fruit is mashed into a paste, which helps to speed up the efficiency of palm oil pressing.


5. Press section:

The crushed palm fruit is continuously squeezed by an oil press to obtain a mixture of crude palm oil, cores and fibers. Crude palm oil enters the filtration section, and the mixture of core and fiber enters the palm kernel recovery section.


6. Filtering section:

Use a plate and frame filter to remove impurities in crude palm oil and speed up the quality of palm oil.


7. Palm kernel recycling section:

The mixture of nucleus and fiber is separated from the fiber and palm nucleus through the fiber separation system, and the separated palm nucleus is transported to the nuclear storage for storage.


2. Palm oil refining section:

Process flow: crude palm oil, degumming, deacidification, decolorization, deodorization, refined palm oil

Crude palm oil is easily hydrolyzed by itself to generate more free fatty acids, and its acid value increases rapidly, so it must be refined or fractionated in time. After the above-mentioned primary stage of extraction, crude palm oil is sent to a refining plant for refining. After removing free fatty acids, natural pigments, and odors in crude palm oil, it becomes a salad-grade oil—refined palm oil.


3. Palm oil sub-extraction section work:

Process flow: heating section, crystallization section, filtration section

Grease is composed of triglycerides with different melting points. Separating the hard fat and soft fat with different melting points at the required temperature is the fractional extraction. Different uses have different requirements for palm oil's stearin and soft fat content. The palm oil content affects the stability of palm oil. The lower the content, the longer the storage time. The stearin content affects the clarity of palm oil, the higher the content, the more turbid the oil. The separated soft fat (liquid palm oil) can be sold on the market, and stearin (solid palm oil) can replace the raw materials of cocoa butter and margarine.