The Complete Soybean Oil Extraction Process can vary according to processing capacity, investment plan, and the customer’s preferred extraction method. For smaller processing plants, mechanical pressing is often a practical choice. For larger-capacity projects, solvent extraction can achieve higher oil recovery.
Therefore, a soybean oil process plant should be designed according to the specific project requirements.
Soybean Oil Pressing Process
For small or medium-scale projects, or when the customer specifically requires mechanical pressing, the process can be:
Soybeans → Cleaning → Crushing → Cooking & Conditioning → Pressing → Crude Soybean Oil → Refining → Finished Oil
First, the soybeans are cleaned to remove stones, dust, metal particles, and other impurities. The cleaned beans are then crushed into smaller pieces.
Next, oilseeds cooking and conditioning machines adjust the moisture and temperature of the soybean material. The prepared soybeans enter the screw oil press, where mechanical pressure separates crude soybean oil from soybean cake.
The crude oil can then enter the refining section to produce edible soybean oil.
A soybean oil pressing plant has a relatively simple process and can be suitable for projects where the required capacity and oil recovery can be achieved through mechanical pressing.
Soybean Oil Solvent Extraction Process
For larger processing capacities, or when the customer requires solvent extraction, the oil solvent extraction line can be:
Soybeans → Cleaning → Crushing → Conditioning → Flaking → Solvent Extraction → Crude Soybean Oil → Refining → Finished Oil
After cleaning and crushing, the soybeans are softened and then passed through flaking equipment. Flaking creates thin flakes with a suitable structure for efficient solvent penetration.
The prepared flakes enter the extractor, where the solvent removes oil from the soybean material. The resulting crude soybean oil is separated from the solvent and then sent to the refining section.
A soybean oil solvent extraction plant can achieve high oil recovery and is commonly considered for larger-scale soybean processing projects.
Choosing the Right Process
The suitable soybean oil extraction machine and process depend on processing capacity, raw material conditions, investment budget, oil recovery requirements, and the customer’s preferred technology.
At Guance Machinery, we can design soybean oil pressing and solvent extraction solutions according to the specific project requirements, including the subsequent soybean oil refining plant.
Choosing the right process at the beginning helps ensure stable operation, efficient oil recovery, and high-quality edible soybean oil.
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