High Residual Oil in the Solvent Extraction Stage? The Real Problem May Lie in Pretreatment!

Have you ever faced high residual oil or low extraction yield during soybean oil production? In most cases, the issue doesn’t originate from the solvent extraction process itself—but from the earlier stage: pretreatment.

QIE GROUP’s complete soybean oil pretreatment equipment adopts advanced conditioning, crushing, dehulling, and extrusion processes to achieve fully mechanized and continuous production.
Equipped with a computerized automatic control system and electrical interlock control, it allows clear monitoring of temperature, pressure, material level, and flow, ensuring precise and stable production. The independent control room, large-screen simulation monitoring, and automatic alarm system make operation easier and management more efficient.

Meanwhile, the high-efficiency thermal dehulling system offers low energy consumption and high shelling rate, while the dust removal system meets environmental standards. Impurities can be recycled or centrally stored, improving overall resource utilization. The outer casing is covered with color steel plates, ensuring a clean and aesthetic workshop environment.

Thanks to these advantages, QIE GROUP’s pretreatment equipment stands out in oil yield, stability, and energy efficiency—making it the first choice for oil plants seeking technological upgrades.

👉 In the next article, we’ll reveal QIE GROUP’s innovations in oil pressing and solvent extraction equipment—helping you achieve a more productive and efficient soybean oil processing line!