What is a Cottonseed Oil Refiner and How Does It Work?

Cottonseed oil refiner is a kind of equipment specially used for deep processing of cottonseed crude oil. Cottonseed crude oil is the original oil extracted from cottonseed, which contains a variety of impurities, such as free fatty acids, phospholipids, pigments, mechanical impurities and some odor substances. These impurities not only affect the appearance, taste and storage stability of cottonseed oil, but also may cause potential harm to human health.

The cottonseed oil refiner removes these impurities from the cottonseed crude oil through a series of physical and chemical methods, and converts it into refined cottonseed oil that meets the national edible oil standards. It integrates multiple refining process links, can efficiently and accurately complete the refining task, and is an indispensable core equipment in the cottonseed oil production line.

Working Principle of Cottonseed Oil Refining Machine

1. Degumming process

The refiner first uses a hydration degumming process to add hot water or phosphoric acid to make the phospholipids in the oil absorb water and swell, and then removes these colloid-soluble impurities through centrifugal separation. This step solves the pain points of cottonseed oil being easy to become turbid and oxidized.

2. Deacidification process

The equipment uses physical or chemical methods to neutralize free fatty acids in the oil. The chemical method neutralizes by adding alkali solution, and the physical method removes by distillation. It effectively solves the problem of cottonseed oil quality affected by high acid value.

3. Decolorization process

By adding adsorbents such as activated white clay, pigments in the oil are adsorbed under vacuum conditions. This process significantly improves the problem of cottonseed oil being too dark in color, making it appear an attractive golden yellow.

4. Deodorization process

Under high temperature and high vacuum conditions, the principle of steam distillation is used to remove odorous substances and volatile components in the oil. This completely solves the peculiar odor problem of cottonseed oil and improves the palatability of the product.

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