What equipment is needed for the extraction of rapeseed oil?

Three types of rapeseed oil extraction machine are commonly used: rapeseed oil pressing machine, rapeseed oil solvent extraction machine and rapeseed oil refining machine. What equipment is needed for the extraction of rapeseed oil and the differences in the rapeseed oil they produce? Let me briefly introduce you：

Rapeseed oil press machine

The rapeseed oil press machine uses the action of external mechanical forces to press the pre-treated rapeseed, squeezing the oil out of it to obtain pressed rapeseed oil. The rapeseed oil obtained by rapeseed oil press machine does not contain additives, and its nutrient content is relatively ideal, but the content of residual oil in the cake after pressing on the rapeseed oil press machine is high, and a single use will lead to oil loss. Therefore, in the extraction of rapeseed oil, oil refineries often use pre-press solvent extraction to increase the yield of rapeseed oil, which requires the use of rapeseed oil solvent extraction machine.

Rapeseed oil press machine

Rapeseed oil solvent extraction machine

The rapeseed oil solvent extraction machine uses the solvent in full contact with the oil to produce oil, and the oil contained in the rapeseed oil is leached to extract blended oil. The boiling point of solvent and oil is different, and the solvent is evaporated to obtain leached rapeseed oil. The rapeseed oil solvent extraction machine can produce rapeseed oil with high solvent extraction efficiency, but the crude oil leached by the rapeseed oil solvent extraction machine contains a small amount of solvent residue. The leached crude oil must be refined before it can be eaten. Refined rapeseed oil can remove the solvent from the oil well and keep the oil safe. The leached meal is of good quality, can be used for livestock or animal feed and has a high product utilization rate.

Rapeseed oil solvent extraction machine

Rapeseed oil refining machine

Pressed oil and solvent extraction oil contain certain impurities. Some impurities are introduced during the manufacturing process, such as sediment, pomace powder, vegetable fibers and other impurities, while others are present in oils such as phospholipids, free fatty acids, pigments, etc. Impurities that affect the quality of rapeseed oil. Therefore, whether it is pressing or solvent extraction the oil, it must be purified with rapeseed oil refining machine to remove impurities from the oil. Rapeseed oil refining machine purposefully removes impurities from rapeseed oil through processes such as degumming, deoxidation, dehydration, decolorization and oil deodorization to ensure the quality and food safety of rapeseed oil. Refined rapeseed oil is more suitable for the taste of the general public, and can also extend the shelf life of rapeseed oil. Refined rapeseed oil can only enter the market for sale after passing inspection.

Rapeseed oil refining machine

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Generally, rapeseed oil pressing machine and rapeseed oil solvent extraction machine mainly extract oil from oil seeds. This oil is called crude oil and needs to be processed. Rapeseed oil refining machine is designed to clean the extracted crude oil from impurities and harmful elements. Refined oil is the finished edible rapeseed oil that we usually see in supermarkets. If you are interested in rapeseed oil extraction machine, please contact us.