What is the refining process of palm oil? What should we pay attention to in this process?

Palm oil, as one of the most important vegetable oils in the world, its refining process is a complex and delicate technological process. Understanding this process will not only help us better understand the market value of palm oil, but also help investors make more informed decisions in the futures market.

First of all, the refining of palm oil begins with the harvest of palm fruit. After the ripe palm fruit is picked, the pulp is separated from the stone after preliminary cleaning and crushing. The pulp part, which we call palm pulp, is the main raw material for extracting palm oil.

Next, the pulp is sent to a press for pressing. During the pressing process, the oil in the pulp is squeezed out by mechanical force to form virgin palm oil. The key of this step is to control the temperature and pressure of pressing to ensure the efficiency and quality of oil extraction.

Press stage Critical control point temperature Control at 70-80℃ to avoid oil oxidation caused by excessive temperature. pressure Proper pressure can improve the extraction rate of oil, but too high pressure may lead to excessive crushing of pulp, which will affect the subsequent treatment.

The squeezed virgin palm oil contains certain impurities, such as moisture, free fatty acids and solid impurities. Therefore, the next step is refining. The refining process includes four main steps: degumming, deacidification, decoloration and deodorization.

Degumming is to precipitate colloid in oil by adding phosphoric acid or citric acid, and then remove it by filtration. Deacidification is to remove free fatty acids from oil by alkali neutralization. Decolorization usually uses activated clay or activated carbon to adsorb pigments and other impurities in oil. Finally, deodorization is to remove volatile odor substances from oil by high temperature steam distillation.

In the whole refining process, there are several key points that need special attention. The first is the control of temperature, which directly affects the quality and stability of oil, whether in the pressing or refining stage. Secondly, the removal of impurities, every step in the refining process must be strictly controlled to ensure the purity of the final product.

In addition, environmental problems in the refining process can not be ignored. The refining of palm oil will produce a lot of wastewater and waste residue, which will cause serious pollution to the environment if it is not handled properly. Therefore, modern refineries are usually equipped with advanced environmental protection facilities, such as wastewater treatment system and waste residue recovery system, to reduce the impact on the environment.

In a word, palm oil refining is a production process with high technical content and complex technology. From fruit picking to final product refining, every link needs strict quality control and environmental protection measures. Understanding this process will not only help us better understand the market dynamics of palm oil, but also provide valuable reference information for futures investors.

(Editor: liujing HZ010)

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