NGL 3200 Cooling System
Client
SADAF Company
Owner
Petroleum Engineering & Development Company (PEDEC)
Location
Khuzestan, Iran
NGL 3200 – West Karoun Area, Cooling System Engineering
The NGL 3200 Project in the West Karoun Area is a flagship development in Iran’s gas processing and petrochemical sector. Managed by the Petroleum Engineering Development Company, a key subsidiary of the Iranian Ministry of Petroleum, this project was awarded to SADAF Company under an EPCF (Engineering, Procurement, Construction, and Financing) contract. The project is designed to enhance the processing of natural gas liquids (NGLs) and associated products from some of the most productive oil fields in Iran.
The main objective is to process up to 500 MMSCFD (million standard cubic feet per day) of sour gas collected from the major West Karoun oil fields, including Darquain, Yadavaran, Jofeir, Bande Karkhe, South Azadegan, and North Azadegan. The plant produces C2+ NGL cuts (valuable heavier hydrocarbons), lean gas, and sulfur, supporting both domestic energy needs and export strategies.
Engineering Services for Unit 760 – Cooling System
Tehran Raymand Consulting Engineers (TR) has been contracted for the complete engineering design of Unit 760 (Cooling System) within the NGL 3200 complex. This specialized cooling unit plays a critical role in supporting process reliability and efficiency across multiple plant sections, particularly the sulfur recovery and gas treatment units.
- Primary Purpose: Unit 760 is designed to deliver a continuous flow of 550 cubic meters per hour of chilled cooling water directly to Unit 600, enabling optimal temperature control during high-load operational scenarios.
- Process Integration: The cooling system is carefully engineered to interface with downstream chillers, ensuring efficient heat exchange and consistent supply to all critical users within the process chain.
Cooling System Design and Performance Details
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Refrigerant-Based Chilling: A refrigerant system is used to chill the cooling water, supporting the following key users:
- AGEU Acid Gas Chiller (E-600-105): 0.485 MW × 1.1 duty
- AGEU Acid Gas Chiller (E-600-205): 0.485 MW × 1.1 duty
- AGEU Lean Amine Chiller (E-600-010): 3.333 MW × 1.1 duty
- Quench Water Chiller (E-600-003): 1.475 MW × 1.1 duty
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Design Specifications:
- Total Design Heat Load: 5.778 MW × 1.1 safety margin, ensuring reliable performance under all operating conditions.
- Turn-Down Ratio: The cooling system is engineered with a 20% turndown ratio, allowing flexible operation during varying plant loads without compromising process integrity.
- Compressor Type: Advanced screw compressors are selected for their efficiency, reliability, and suitability in large-scale industrial cooling applications.
The integration of Unit 760 with the wider NGL 3200 facility ensures precise temperature control and stable operation, directly supporting the recovery of high-value NGL products and sulfur. The robust engineering approach emphasizes energy efficiency, operational safety, and long-term reliability, aligning with best practices in global petrochemical plant design.
Through this project, Tehran Raymand and its partners contribute significantly to the sustainable development and modernization of Iran’s gas processing infrastructure, helping to meet both domestic energy demand and export objectives in the international market.