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After oil pressing process or oil extraction process, we get crude oil. But the crude oil can’t flow to supermarket. The crude oil must need processing with cooking oil refining plant, especially soybean, cottonseed, rapeseed, palm kernel, etc. Then how much do you know about Cooking Oil Refining Plant? Do you have learned about refining process?
Five Main Steps of Cooking Oil Refining Process:
1.Crude Oil Degumming: In this step gums in crude oil are removed by hydration with the help of phosphoric acid.
2.Neutralization: In this step free fatty acids are neutralized by using sodium hydroxide and convert them into soap. Additional impurities are also removed by adsorption on soap.
3.Decolorization: During bleaching, unwanted pigments are adsorbed physically and oil will become much clearer.
4.Deodorization: Deodorization is used to remove unacceptable odors by steam distillation, the odoriferous compound are stripped off with the help of live injected steam into heated oil under high vacuum pressure.
5.Dewaxing (necessary for cold areas)
Some kinds of oil like sunflower, maize germ or corn oil have waxes inside, if these impurities are not removed, the oil will freeze easily under low temperature, thus effecting oil quality and appearance. so this process is necessary in extremely cold areas. |
| Company: |
Henan Doing Mechanical Equipment Co.,Ltd
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| Contact: |
Ms. Elina Wu |
| Address: |
Yingxie Road Jinshui District,Zhengzhou |
| Postcode: |
450000 |
| Tel: |
8615515538695 |
| Fax: |
8637186129922 |
| E-mail: |
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