Introduction of two extraction methods of sunflower oil ( pressing method and solvent extraction method )

As one of four major edible oil in the world, sunflower oil is an advanced nutritional oil because it contains a lot of essential unsaturated fatty acids such as linoleic acid, which can promote the regeneration and growth of human cells. Sunflower oil can be produced in two ways, includes pressing method and solvent extraction method. Different methods owns different advantages. Sunflower oil producers can choose one according to the processing capacity of raw material and processing needs in reality.

Two extraction methods of sunflower oil

Processing progress of sunflower oil extraction by pressing method:

Step 1: We can use cleaning equipment ( vibrating screen&destoner ) to remove impurities in sunflower seeds to ensure the quality of oil and the service life of equipment;

Step 2: The clean sunflower seeds would be transported to cracker to crack the sunflower seeds, which prepared the nest step.

Step 3: The step is to use kernel husk separator to separate husk from the kernels of sunflower seeds.

Step 4: The step is to use cooker to adjust the temperature and humidity of sunflower seeds, so that the best conditions is ready for pressing sunflower seeds.

Step 5: After completing the above steps, the cooking oil press is used to extract sunflower oil by physical extrusion.

Step 6: Finally, we need to use a filter to remove impurities in the oil.

Sunflower oil extraction progress by pressing method

Processing progress of sunflower oil extraction by solvent extraction method:

If your raw material is sunflower seed oil cake, you can directly carry out the solvent extraction process. If your raw material is sunflower seed, then you need cleaning, cracking, shelling and cooking and pressing or pre-pressing to get sunflower oil cake. ( These steps are the same as pressing method. )

Step1: The solvent extraction method applies the principle of extraction, selecting a certain organic solvent that can dissolve the oil, and makes it contact with the pretreated oil by soaking or spraying, so that the oil in the oil is dissolved.

Step2: The wet meal is evaporated to remove the solvent and water in it in order to get the dry meal and recover the solvent.

Step3: The mixed oil obtained from solvent extraction need to be handled in mixed oil evaporation system, which uses the different boiling points of the solvent and oil, the mixed oil is evaporated and stripped, then the solvent is evaporated, the oil is left.

Step4: Finally, the evaporated solvent is recovered by condenser and recovery system from D.T.D.C system and mixed oil evaporation and stripping machine.

Sunflower oil solvent extraction plant

Tips: The cooking oil pressing method and solvent extraction method have their own advantages. There is no good or bad for pressing or solvent extraction. Choosing which one cooking oil processing method depends on the characteristics of the raw materials and the processing needs.

[ Related reading: Which one is better for extracting cooking oil by pressing method or solvent extraction method? ]

As a professional manufacturer of sunflower oil processing machine, we can provide a series of equipment to help people to make sunflower oil. If you are interested in sunflower oil pressing machine and solvent extraction machine and its prices, feel free to call us.