Pardis Petrochemical Complex – 2nd Urea & Ammonia

The Pardis Petrochemical Complex, located in Asaluyeh, Iran, is one of the largest and most integrated petrochemical facilities in the Middle East. It primarily focuses on the production of urea and ammonia, utilizing natural gas feedstock from the South Pars gas field. With an annual capacity of 5.2 million tons of products, it plays a strategic role in Iran’s petrochemical value chain and global fertilizer markets.

HomeProjectsPardis Petrochemical Complex – 2nd Urea & Ammonia

Project Specification

Key Specifications

Core Technology & Licensing

Licensed Processes:

Ammonia Production:Haldor Topsoe’s conventional reforming technology
Urea Synthesis:Stamicarbon’s CO₂ stripping process
Natural Gas Treatment:BASF’s gas purification technology

Key Production Units:

Ammonia Unit(1.75 million t/year)
Urea Unit(2.85 million t/year)
Utilities and Off-sites(power generation, water treatment)

Project Details

Capacity & Output:

Ammonia Production:5,000 t/day
Urea Production:7,800 t/day
By-products:Carbon dioxide (for urea synthesis)

Process Conditions:

Ammonia Synthesis:450-500°C, 150-200 bar
Urea Synthesis:180-190°C, 140-150 bar

Reformer Operation: 800-900°C, 30-40 bar

Operational Challenges

Catalyst Management: Frequent replacement of reformer and ammonia synthesis catalysts
Energy Intensity: High natural gas consumption (∼30 Gcal/t ammonia)
Corrosion Control: Handling of corrosive intermediates (e.g., carbamate)
Environmental Compliance: Managing NOx emissions from reformers

Strategic Importance

Largest urea producer in Iran(∼20% of national output)
Key exporterto markets in Asia, Africa, and Latin America
Integrated value chainfrom natural gas to fertilizers
Job creation and economic developmentin the region

Engineering Opportunities for Sabz Engineering Co.

Detailed Engineering:

Design of high-pressure vessels(urea reactors, ammonia converters)
Pipe stress analysisfor high-temperature/pressure lines
Foundation designfor large rotating equipment (compressors)

Software Solutions:

Process Optimization Toolsfor energy reduction
Asset Integrity Managementfor corrosion monitoring
Digital Twinfor predictive maintenance

Project Management:

Phased turnaround planning
Vendor coordinationfor international equipment procurement
Construction managementfor brownfield expansions

Sustainability Features

Carbon Capture: Utilization of CO₂ for urea production
Water Recycling: Advanced water treatment for zero liquid discharge
Waste Heat Recovery: Cogeneration of power and steam
Emissions Reduction: Advanced burners for NOx control

Why This Project Fits Sabz Engineering Co.

Aligns with core competencies:Pressure vessel design, energy optimization, and project management
Software innovation opportunities:Development of custom tools for process efficiency
Proven experience:Similar projects executed in urea/ammonia complexes

Project Economics

Parameter	Value
Investment	~$1.5 billion (initial phase)
Payback Period	5-6 years
ROI	20-25%
Employment	1,500+ direct jobs

SEC Scope:

Design + Procurement + Fabrication Drawing Preparation for 27 Units of Pressure Vessel 180 Tons
Design + Procurement + Fabrication Drawing Preparation for 13 Units of Tower 320 Tons
Design + Procurement + Fabrication Drawing Preparation for 10 Units of Air Coolers 200 Tons
Material take-off + Procurement + Fabrication Drawing Preparation for 1 Unit Reformer 1,040 Tons (Steel Structure)
Fabrication Drawing Preparation for Steel Structure 2,350 Tons