Bidboland Gas Refinery

The Bid Boland Gas Refinery, located in the Bid Boland region of Bushehr Province, Iran, is one of the largest gas processing facilities in the Middle East. It serves as a critical hub for processing sour natural gas from the South Pars gas field and other offshore reservoirs. With a processing capacity of 56 million cubic meters per day, the refinery plays a pivotal role in Iran’s natural gas supply chain, producing lean gas for domestic consumption and valuable ethane and NGLs (Natural Gas Liquids) for petrochemical feedstocks.

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Project Specification

Key Specifications

Capacity & Output:

Feed Gas Capacity:56 MMSCMD (million standard cubic meters per day)
Products:
- Lean Gas:48 MMSCMD for national grid
- Ethane:2 million t/year for petrochemicals
- LPG:1 million t/year
- Sulfur:2,500 t/day
- Condensate:80,000 bpd

Process Conditions:

Sweetening Units:40-60°C, 60-80 bar
Sulfur Recovery:200-350°C, 1-2 bar
NGL Recovery:-80 to -100°C cryogenic section

Project Details

Licensed Processes:

Gas Sweetening:Using amine-based treating units (e.g., MDEA, DEA) for acid gas removal
Sulfur Recovery:Claus process with tail gas treatment for >99.9% efficiency
NGL Recovery:Turbo-expander technology for ethane and LPG extraction
Dehydration:Molecular sieve units for water removal

Key Production Units:

Gas Sweetening Units(Multiple trains)
Sulfur Recovery Units (SRU)
NGL Recovery and Fractionation Units
Compression and Export Facilities

Operational Challenges

Sour Gas Handling: High H₂S (∼3-5%) and CO₂ (∼8-10%) content requiring robust materials
Corrosion Management: Amine corrosion, sulfide stress cracking (SSCC)
Environmental Compliance: Managing SO₂ emissions and sulfur solidification/storage
Energy Intensity: High power demand for compression and refrigeration

Strategic Importance

Key supplier of ethaneto Iran’s petrochemical complexes (e.g., Marun, Borzuyeh)
Reduces gas flaringby capturing and processing associated gas
Enables sulfur exports(Iran is a major global supplier)
Strengthens Iran’s gas infrastructureand energy security

Engineering Opportunities for Sabz Engineering Co.

Detailed Engineering:

Design of amine contactors, strippers, and heat exchangers
Pressure vessel designfor sulfur condensers and reactors
Piping designfor sour service (NACE MR0175 compliance)

Software Solutions:

Process simulationfor debottlenecking and optimization
Corrosion monitoring and prediction software
Digital twinfor real-time performance monitoring

Project Management:

Turnaround and shutdown planning
Vendor coordinationfor specialized equipment (e.g., acid gas removal packages)
Construction managementfor brownfield expansions

Sustainability Features

Sulfur Recovery: >99.9% efficiency, reducing environmental impact
Energy Recovery: Waste heat utilization for power generation
Water Management: Advanced treatment for zero liquid discharge
Emissions Control: Advanced incineration for tail gas

Project Economics

Parameter	Value
Investment	~$3.5 billion (initial phase)
Payback Period	6-7 years
ROI	18-22%
Employment	2,000+ direct jobs

SEC Scope:

Design + Material take-off + Fabrication Drawing Preparation for 60 Units Pressure Vessels 980 Tons