Palm oil pressing,refining and fractionation(IV)-Refining and fractionation
1. Refined palm oil process
Palm fruit bunch → disinfection treatment → separation (palm fruit) → cooking → compression → screening → sedimentation tank → residual oil → centrifuge → drying vacuum machine → crude palm oil → chemical refining or physical refining → refined palm oil.
2. Principle of fractionation
Natural oils are a mixture of various triglycerides. Due to the different types of fatty acids that make up triglycerides and the distribution of fatty acids in the molecule, the physical and chemical properties of triglycerides are different. The process of ester grading is called oil fractionation.
3. Fractionation method
According to the characteristics of the cooling crystallization and separation process, the fractionation process can be divided into conventional method, surfactant method, fractionation with solvent, liquid - liquid solvent extraction and so on. The most widely used process is the conventional method, also known as dry fractionation.
4. Fractionation of theoretical yield calculated
Liquid oil yield = [(raw material IV-stearin IV)/(liquid oil IV-stearin IV)] *100%
Stearin yield = [(liquid oil IV-raw material IV)/(liquid oil IV-stearin IV)] *100%
Crude palm oil has higher acid value, darker color, and less gum. It is suitable for physical refining to increase the refining rate. The color of crude oil is mainly caused by a large amount of B-carotene. Part of the pigment is removed during the pretreatment of adding phosphoric acid and clay. More is removed in distillation deacidification. The deodorization temperature of crude palm oil is generally between 256 and 265 degrees. Especially the time spent in the deodorization tower tray must be sufficient.
Palm oil is rich in vitamin A (500-700ppm) and vitamin E (500-800ppm). The content of saturated fatty acids is high, the stability is good, and it is not prone to oxidative deterioration. Oil palm fruits contain more lipases, so the harvested fruits must be processed or "killed" in time. Crude palm oil is prone to hydrolyze by itself to generate more free fatty acids, and the acid value increases quickly. Therefore, it must be refined or separated in time.
Palm oil is rich in vitamin A (500-700ppm) and vitamin E (500-800ppm). The content of saturated fatty acids is high, the stability is good, and it is not prone to oxidative deterioration. Oil palm fruits contain more lipases, so the harvested fruits must be processed or "sterilization" in time. Crude palm oil is prone to hydrolyze by itself to generate more free fatty acids, and the acid value increases quickly. Therefore, it must be Refining or fractionating in time.
Hot tags:Palm oil,pressing,refining,fractionation,Refined palm oil process,Fractionation method
For more related technical process information, see https://www.victoryoilmachinery.com/Palm_oil_Production_Machine/
Palm fruit bunch → disinfection treatment → separation (palm fruit) → cooking → compression → screening → sedimentation tank → residual oil → centrifuge → drying vacuum machine → crude palm oil → chemical refining or physical refining → refined palm oil.
2. Principle of fractionation
Natural oils are a mixture of various triglycerides. Due to the different types of fatty acids that make up triglycerides and the distribution of fatty acids in the molecule, the physical and chemical properties of triglycerides are different. The process of ester grading is called oil fractionation.
3. Fractionation method
According to the characteristics of the cooling crystallization and separation process, the fractionation process can be divided into conventional method, surfactant method, fractionation with solvent, liquid - liquid solvent extraction and so on. The most widely used process is the conventional method, also known as dry fractionation.
4. Fractionation of theoretical yield calculated
Liquid oil yield = [(raw material IV-stearin IV)/(liquid oil IV-stearin IV)] *100%
Stearin yield = [(liquid oil IV-raw material IV)/(liquid oil IV-stearin IV)] *100%
Crude palm oil has higher acid value, darker color, and less gum. It is suitable for physical refining to increase the refining rate. The color of crude oil is mainly caused by a large amount of B-carotene. Part of the pigment is removed during the pretreatment of adding phosphoric acid and clay. More is removed in distillation deacidification. The deodorization temperature of crude palm oil is generally between 256 and 265 degrees. Especially the time spent in the deodorization tower tray must be sufficient.
Palm oil is rich in vitamin A (500-700ppm) and vitamin E (500-800ppm). The content of saturated fatty acids is high, the stability is good, and it is not prone to oxidative deterioration. Oil palm fruits contain more lipases, so the harvested fruits must be processed or "killed" in time. Crude palm oil is prone to hydrolyze by itself to generate more free fatty acids, and the acid value increases quickly. Therefore, it must be refined or separated in time.
Palm oil is rich in vitamin A (500-700ppm) and vitamin E (500-800ppm). The content of saturated fatty acids is high, the stability is good, and it is not prone to oxidative deterioration. Oil palm fruits contain more lipases, so the harvested fruits must be processed or "sterilization" in time. Crude palm oil is prone to hydrolyze by itself to generate more free fatty acids, and the acid value increases quickly. Therefore, it must be Refining or fractionating in time.
Hot tags:Palm oil,pressing,refining,fractionation,Refined palm oil process,Fractionation method
For more related technical process information, see https://www.victoryoilmachinery.com/Palm_oil_Production_Machine/
