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Introduction to the process flow of small rapeseed oil refining equipment

September 18, 2021

In order to remove various impurities in rapeseed oil and obtain high-quality rapeseed oil that meets national standards, rapeseed oil refining equipment is indispensable. The small-scale rapeseed oil refining equipment is mainly suitable for rapeseed oil refineries or rapeseed oil production plants with a refining capacity of 1-10 tons/day. So how does the small rapeseed oil refining equipment remove the impurities in the rapeseed oil? What is its technological process? Take a look.

 rapeseed oil

The process flow of small rapeseed oil refining equipment is mainly divided into four sections: degumming, deacidification, decolorization and deodorization. After the deodorization is completed, various impurities in the rapeseed oil are removed. All components of the refined rapeseed oil meet the national standards and can be sold on the market.

1. Degumming

Purpose: To remove peptic impurities in rapeseed oil.

Process flow: Add hot water to the unrefined rapeseed oil and stir at the same time to make the peptic impurities agglomerate into agglomerates. After precipitation and separation, peptic impurities can be removed.

2. Deacidification

Purpose: To remove free fatty acids in rapeseed oil.

Process flow: Add lye to the degummed oil to neutralize the free fatty acids in the lye and rapeseed oil to remove free fatty acids. After deacidification, soapstock will be produced as a by-product, which is the raw material for soap production.

3. Decolorization

Purpose: To remove the pigment in rapeseed oil.

Process flow: Add white clay to the deacidified oil to absorb pigments and other impurities in the oil, and then remove the waste white clay through a leaf filter to complete the decolorization process. After decolorization, the color of rapeseed oil meets national standards.

4. Deodorization

Purpose: To remove odorous substances in rapeseed oil.

Process flow: Under the condition of high temperature and high vacuum, water vapor is introduced into the deodorizing tank to take away the odorous substances in the oil.

 refining equipment

If you are considering buying small rapeseed oil refining equipment, in addition to understanding the simple process, you must also pay attention to the material of the equipment. Small-scale rapeseed oil refining equipment is generally made of carbon steel, but the deodorizing part is made of stainless steel. Because deodorization must be completed under high temperature and high vacuum conditions, if carbon steel is used as the material for the deodorization part, it will not only damage the equipment, but also affect the quality of refined rapeseed oil. So, pay attention to this issue when you look at the equipment list. Of course, you can also choose a small rapeseed oil refining equipment made entirely of stainless steel. Such equipment has better quality, longer service life, and higher cost.

The small rapeseed oil refining equipment provided by Henan Zhongxing is produced in its own factory, which not only ensures the quality of the equipment, but also has the required price advantage. If you have the need for small-scale rapeseed oil refining equipment, you are welcome to contact us.