Asaluyeh Monoethylene Glycol (MEG) Petrochemical Complex - Technical Profile
The Asaluyeh MEG Plant, located in Iran’s South Pars Special Economic Energy Zone, is a strategic producer of:
• 1.1 million t/year monoethylene glycol (MEG)
• Co-products: Diethylene glycol (DEG) and triethylene glycol (TEG)
• Feedstock: Ethylene from adjacent cracker complexes
Project Specification
Key Specifications
Core Technology
▸ Licensed Process:
- Shell OMEGAor Scientific Design EO/MEG technology
- High-selectivity silver catalyst(EO conversion >85%)
- Reactive distillationfor MEG purification
▸ Key Units:
- Ethylene oxide (EO) reactor system
- MEG synthesis via EO hydration
DEG/TEG separation columns
Project Details
Project Details
Market Position
- Supplies 40% of Iran’s polyester feedstock
- Export markets: China (60%), India (25%), Turkey (15%)
- Competitive edge: Low-cost ethylene feedstock at ~$300/t
Sustainability & Expansion
☆ Carbon footprint: 1.8 tCO₂/t MEG
☆ Water recycling: 90% recovery rate
☆ Future projects:
- MEG debottlenecking to 1.3 million t/y
- Bio-MEG pilot plant (20,000 t/y)
- CCUS integration study
Technical Specifications
✔ Process Conditions:
- EO reaction: 200-300°C, 15-25 bar
- MEG synthesis: 150-180°C, 10-15 bar
- Product purity: ≥99.9% fiber-grade MEG
✔ Utility Consumption:
- Steam: 2.3-2.8 t/t MEG
- Cooling water: 150 m³/t MEG
- Power: 35-40 MW
Operational Challenges
Corrosion management in EO/MEG loops (stainless steel 316L/duplex required)
Catalyst deactivation (3–5-year replacement cycle)
Glycol ether byproduct control
Winterization requirements (MEG freezing point: -13°C)
SEC Scope:
- Design + Material take-off + Procurement + Fabrication Drawing Preparation for 20 Units Heat Exchanger 132 Tons
- Design + Material take-off + Procurement + Fabrication Drawing Preparation for 33 Units Pressure Vessel 450 Tons
- Design + Material take-off + Procurement + Fabrication Drawing Preparation for 8 Units Tower 420 Tons
- Fabrication Drawing Preparation for Steel Structure 82 Tons