Guide des paramètres de régulation et des solutions aux problèmes courants des procédés de pressage à froid et à chaud de l'huile de palme

Palme Oil Refining: Technical Insights and Optimization Strategies

In the palm oil processing industry, many small and medium - sized oil mills face significant challenges, such as unstable oil quality and high energy consumption. These issues not only affect the competitiveness of products but also restrict the development of enterprises in the international market. In this context, understanding the cold - pressing and hot - pressing processes of palm oil and how to optimize their parameters is crucial.

Cold - Pressing and Hot - Pressing Processes: Mechanisms and Advantages

The cold - pressing process of palm oil is carried out at relatively low temperatures, usually below 60°C. This method can effectively preserve the natural nutrients and flavors of the oil, ensuring high - quality products. For example, it can retain more vitamin E and antioxidants, which improves the nutritional value of the oil. On the other hand, the hot - pressing process is conducted at higher temperatures, often between 100 - 120°C, which can significantly improve the oil yield. In some cases, the oil yield can reach up to 85%, which is much higher than that of cold - pressing. The following table compares the two processes:

Synergistic Operation and Parameter Control

Combining the cold - pressing and hot - pressing processes can achieve complementary advantages in terms of quality and yield. The key to this process lies in the control of key parameters, especially temperature and degumming efficiency. The temperature range for the combined process should be carefully adjusted. In the pre - treatment stage, the temperature can be controlled at around 70 - 80°C to ensure the initial degumming effect. During the pressing stage, the temperature can be gradually increased according to the process requirements, but it should not exceed 120°C to avoid excessive damage to the nutrients in the oil.

Regarding degumming efficiency, adding an appropriate amount of phosphoric acid or citric acid can effectively remove impurities and gums in the oil. The dosage of these additives usually accounts for about 0.1 - 0.3% of the oil weight.

Common Problems and Solutions

In actual production, problems such as emulsification and inefficient water washing often occur. For emulsification problems, adding an appropriate amount of demulsifier can effectively break the emulsion. The dosage of the demulsifier is generally about 0.05 - 0.1% of the oil weight. In terms of water washing optimization, increasing the water temperature to about 80 - 90°C and using multiple - stage water washing can improve the washing effect and remove more impurities.

Contribution to International Standards and the Way Forward

The combination of cold - pressing and hot - pressing processes meets the international safety and green standards. It not only reduces energy consumption but also improves the quality of palm oil, which is in line with the current trend of sustainable development. Many international markets have set strict requirements for the quality and environmental protection of palm oil, and this process can help enterprises meet these requirements and enhance their export capabilities.

We encourage readers to share their operational experiences and feedback. If you want to learn more about efficient palm oil refining solutions and get professional advice, please contact Penguin Group.