What is pre commissioning of oil refinery?

Pre-commissioning of an oil refinery refers to the phase of testing and preparing equipment and systems before the actual commissioning and operation begin. This process includes inspections, functional tests, and the verification of various components to ensure they meet design specifications and safety standards. Activities may involve cleaning, flushing, and pressure testing piping systems, as well as checking instrumentation and control systems. Successful pre-commissioning is crucial for minimizing risks and ensuring a smooth transition to full operational status.