Nitrogen Plant Process Control DCS

MIDOR Nitrogen Plant Automation Migration

MIDOR (Middle East Oil Refinery) partnered with MISC to modernize the automation system of its Nitrogen Plant, ensuring improved reliability, scalability, and compliance with modern industry standards. The existing Siemens S5 controllers and legacy operator workstations had reached obsolescence, limiting efficiency and supportability.

Project Scope

• Migration from Siemens S5 to PCS 7 DCS
• Replacement of obsolete controllers with modern PCS 7 controllers
• Deployment of redundant I/O racks based on ET200M with full I/O and network redundancy
• Supply of modern, up-to-date Operator Workstations (OWS)
• Implementation of anti-surge protection logic directly within the PLC software for safe and reliable operation

Key Benefits

• Transition to a state-of-the-art DCS platform (PCS 7) for higher reliability and maintainability
• Redundancy at every level – controllers, I/O racks, and networks – ensuring uninterrupted plant operations
• Enhanced operator experience with modern OWS featuring trending, alarm management, and diagnostics
• Integrated anti-surge arrestor protection in PLC software, improving safety and equipment protection
•  Increased lifecycle of plant assets and compliance with latest Siemens technology standards

Outcome

By completing this automation migration, MISC enabled MIDOR to secure the long-term operation of its Nitrogen Plant with a high-availability, future-ready DCS system, ensuring continuous, safe, and efficient production.

Technology used:

* PCS7