600T/D Soybean Oil Processing Production Line Project Case

Raw Material: Soybean

Capacity: 600TPD (pre-treatment & extraction) + 150TPD refining

Project Type: Turnkey (EPC)

Control System: PLC automatic control

At the initial stage, the client aimed to:

• Increase oil yield and reduce residual oil in meal
• Lower energy consumption and operating costs
• Achieve automated production with reduced labor
• Meet high-quality edible oil standards
• Ensure safe, environmentally compliant, and stable operation

Meanwhile, typical issues with traditional plants included:

• Excessive energy consumption
• High refining loss
• Insufficient safety control systems

QIE Group provided a customized solution focusing on efficiency, energy saving, automation, and safety, ensuring optimal performance across the entire production line.

1️⃣ High-efficiency pretreatment and leaching process

• Secondary crushing and dehulling process
• Advanced extrusion to improve extraction efficiency
• Optimized material structure for better solvent penetration
• Residual oil in meal controlled at ≤0.5%

Value: Maximizes oil recovery and increases profitability

2️⃣ High-quality refining system

• 150TPD refining capacity
• Optimized degumming, deacidification, bleaching, and deodorization
• Refining loss controlled within ≤5%
• Final oil meets edible oil quality standards

Value: Enhancing product added value and strengthening market competitiveness

3️⃣ Automation and Intelligent Control Systems

• PLC-based centralized control system (Siemens optional)
• Fully automated operation with interlocking protection
• Real-time monitoring of temperature, pressure, and material levels
• Data recording for production analysis

Value: Reduces labor costs and improves production stability

4️⃣ Safety & Environmental Protection

• Combustible gas detection and alarm system
• Solvent recovery system (paraffin absorption technology)
• Wastewater solvent content controlled at ≤50 ppm
• Full-process safety interlocking system

Value: Minimizes operational risks and meets environmental standards

QIE Group provided full EPC services, including:

• Process design and engineering planning
• Equipment manufacturing and supply
• On-site installation and commissioning
• Operator training and technical support

The project was delivered on schedule and quickly reached stable production.

Client Benefit: Reduced project risk and faster return on investment

After commissioning, the plant achieved:

• Residual oil in meal: ≤0.5%
• Energy consumption reduced by 10–15%
• Refining loss: ≤5%
• Significant reduction in labor costs
• Stable and reliable operation

Overall Result: Improved profitability and operational efficiency

This project enables the client to achieve:

• Higher oil yield → Increased revenue
• Lower energy consumption → Reduced operating cost
• Stable production → Lower risk
• High-quality oil → Stronger market competitiveness