In the global edible oil market, the demand for high - quality and high - yield animal and vegetable oils has been on the rise. According to industry statistics, the annual growth rate of the global edible oil market is approximately 3 - 5%. Among them, soybean oil, peanut oil, and palm oil account for a large proportion. For small and medium - sized oil production enterprises, improving oil yield and quality while reducing energy consumption and production losses is crucial for survival and development.
The market demand for animal and vegetable oils is mainly driven by population growth, dietary structure changes, and the development of the food processing industry. In recent years, consumers' demand for high - quality, healthy, and pure edible oils has increased significantly. Technologically, the development of advanced pressing equipment and filtration systems has provided new possibilities for improving oil yield and quality. For example, the latest generation of screw presses can increase the oil yield by about 5 - 10% compared with traditional presses.
1. Soybean Oil Extraction: The soybean oil extraction process mainly includes cleaning, crushing, softening, rolling, and pressing. The key to improving the oil yield of soybean oil lies in the control of moisture content during the softening process and the adjustment of pressing parameters. Generally, when the moisture content of soybeans is controlled at about 10 - 12%, the oil yield can be optimized.
2. Peanut Oil Extraction: Peanut oil extraction requires roasting peanuts first to enhance the flavor. The roasting temperature and time have a significant impact on the oil yield and quality. Usually, roasting peanuts at 150 - 180°C for 20 - 30 minutes can achieve better results.
3. Palm Oil Extraction: Palm oil extraction mainly involves sterilization, threshing, pressing, and clarification. The optimization of palm oil extraction equipment can effectively improve the oil yield. For example, the use of advanced centrifugal separators can improve the separation efficiency of palm oil and reduce oil loss.
The combination of high - efficiency mechanical pressing and physical filtration systems can maximize the oil yield and purity. Mechanical pressing can break the cell walls of oil crops to release oil, while physical filtration can remove impurities in the oil. For example, using a multi - stage filtration system can remove more than 95% of impurities in the oil, improving the purity of the oil.
Key equipment parameters such as pressing pressure, temperature, and speed have a significant impact on oil recovery and quality. For example, increasing the pressing pressure within a certain range can increase the oil yield, but excessive pressure may lead to the deterioration of oil quality. Generally, the optimal pressing pressure for soybean oil is about 30 - 40 MPa, and the temperature is about 80 - 100°C.
Optimizing the operation process can reduce energy consumption and processing losses. For example, by adjusting the feeding speed and pressing cycle, energy consumption can be reduced by about 10 - 15%. At the same time, the use of energy - saving equipment and intelligent control systems can further improve production efficiency.
Through practical case analysis, we can see that small and medium - sized oil enterprises can achieve significant improvements in oil yield and quality by adopting advanced technologies and optimization strategies. For example, a small - scale peanut oil production enterprise increased its oil yield by 8% and reduced energy consumption by 12% after optimizing its production process.
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