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Sour Gas Incineration System Commissioned for NRL Assam Refinery

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EIPL successfully commissioned a 3 MW two-chamber incineration system for safe disposal of H₂S-rich sour gas with ammonia, integrated with heat recovery.

EIPL is pleased to announce the successful commissioning of a sour gas incineration system at the NRL refinery in Assam, India.

The system is designed to safely process H₂S-rich sour gas containing ammonia, ensuring effective destruction of hazardous components while meeting stringent environmental norms. A two-chamber incinerator configuration has been implemented to achieve high destruction efficiency and stable combustion performance.

The facility includes a robust burner system, followed by a Heat Recovery Boiler (HRB) to utilize the thermal energy from flue gases, improving overall system efficiency. The treated gases are safely discharged through a stack, ensuring compliance with emission standards.

With a capacity of 3 MW, the system provides reliable and continuous operation under varying process conditions.

Key Highlights

Client:
  • Numaligarh Refinery Limited (NRL), Assam, India 
Waste Stream:
  • H₂S sour gas with ammonia
  • Support fuel: fuel gas
Capacity:
  • 3 MW
System Configuration:
  • Two-chamber incinerator
  • Burner system
  • Heat Recovery Boiler
  • Stack
Project Execution:
  • Basic Design: Europem HQ 
  • EPC & Project Management: Europem India
Schedule: 
  • Commissioned: March 2021 

Conclusion

This project highlights EIPL’s expertise in handling complex sour gas streams, delivering safe, efficient, and environmentally compliant solutions for refinery applications.

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