1.Sunflower oil is commonly extracted by pressing and leaching. Pressing is a traditional physical processing technology. The oil is extruded by external force to retain the nutrition and flavor of the oil, making the oil green and healthy and popular with consumers. The leaching process is to extract oil by solvent leaching, which belongs to chemical process. The sunflower seed oil in oil can be fully extracted during the leaching process, and the residual oil in cake can be controlled within a very low range. It is one of the most widely used edible oil processing processes.
2.The wax in sunflower seed oil will affect the flavor and taste of the oil, so it is necessary to operate the dewaxing section. There are many methods for dewaxing, such as freezing crystallization method, surfactant method, cold polymerization method, electrostatic method, neutralization and winterization method. But at present, the production of edible oil is basically using frozen crystallization method. The specific dewaxing process operation also needs to be set according to the wax content of sunflower oil and market requirements, after dewaxing, sunflower oil can be obtained in line with the specified standards.
- Process Flow Diagram
Soybean oil extraction plant
We can provide the complete 540,000 TPY AKA 1500 tpd soybean oil extraction plant uses continuous solvent extraction process to produce soybean oil. The plant includes three major sections: preparation section ( Pretreatment and Pre-press section), extraction and degumming ( Extraction and refinery section ).
Below is soybean oil processment plant
1. Pretreatment part of the soybean oil extraction plant:
Soybean → Cleaning → Crushing → Softening → Flaking → Puffing (Drying) → Solvent extraction
a. Cleaning:
Cleaning section removes impurities in soybeans through magnetic drum, cleaning seive, stoning machine, etc. Soybeans from different regions need different cleaning machines to remove impurities. And our engineer can help you choose most suitable sets of cleaning machines according to your material.
b. Crusher:
It is used for crushing soybean into small pieces, which can help to extract more oil from the seeds.
c.Flaking Machine/Flake roll:
This machine can be made the soybean to 3mm-5mm flakes , it will destroy the soybean oil cell which is easy extraction oil out.
Soybean oil pressing machine:
2. Solvent extraction of the soybean oil extraction plant:
Soybean flakes → Extractor → Desolventizer Toaster → Stripping Tower (Oil Stripper) → Crude Soybean Oil
The pretreated soybean flakes are sent to soybean oil solvent extraction plant. The plant uses a kind of solvent(normal hexane) to absorb the oil from soybean, and then the machines separate
the solvent from crude soybean oil, solvent is used for recycling and crude soybean oil is refined by soybean oil refinery plant.
Rotocel extractor and loop type extractor.
3. Refinery plant of soybean oil extraction plant:
a.Degumming and deacidification section: This part is used for removing the phospholipid and FFA in the crude oil.
b.Decolorization section: this part is utilizing the white clay to get rid of the pigment in the soybean oil. It can make the soybean oil much more clearer.
c.Deodoriztion section: This part is using the direct steam to take the beany flavor away, to make the soybean oil good flavor.
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