Why is Deacidification Required during Palm Oil Refinery?
Palm oil is a major product in the global edible oil market and undergoes a complex palm oil refining process to ensure that it is suitable for consumption and commercial use. Palm oil deacidification process is one of the key links in the palm oil refinery and plays an important role in improving the quality, stability and safety of palm oil. But why is deacidification required during palm oil refining? How to deacidify?
During the production of palm oil, crude oil contains a high level of free fatty acids (FFA). These free fatty acids not only affect the quality of the oil, but may also accelerate the rancidity process of the oil and shorten its shelf life. Therefore, deacidification has become an indispensable step in palm oil refinery plant.
Specifically, deacidification has the following effects on improving the quality of oil:
- Improve oil quality: Removing free fatty acids can improve the taste, color and stability of the finished oil.
- Extend shelf life: Reducing free fatty acids can reduce the oxidation rate of oil, thereby extending the storage life of the finished oil.
- Improve processing performance: Removing free fatty acids helps improve the effect of subsequent refining steps, such as decolorization and deodorization.
Palm oil refining machine usually adopts physical refining process, so deacidification process is to use the characteristics of free fatty acids being more volatile than triglycerides under high temperature and vacuum conditions, and to evaporate and precipitate free fatty acids through steam heating. The specific operation process is:
- Heating: Heat the crude oil to a certain temperature (usually above 250°C) and carry out under vacuum conditions.
- Steam heating: Use steam to heat the crude oil to volatilize free fatty acids.
- Separation: Free fatty acids are extracted under vacuum and separated from triglycerides. Cooling: The deacidified oil needs to be cooled to a safe temperature for subsequent processing.
Deacidification is a key step to improve the palm oil quality. This process can effectively remove free fatty acids, improve the stability of oil products and extend their shelf life. Huatai Oil Machinery can configure palm oil deacidification solutions according to the customer’s palm crude oil acid value. Welcome to consult.
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