Commissioning & Start-Up of Process Units


Who should attend?

  • Prepare participants to join or collaborate with the commissioning and start-up teams.
Audience :
  • Supervisors, engineers and technicians of refining, petrochemical, chemical companies and engineering contractors, involved in the commissioning and start-up of new units or revamping projects or turnarounds.

Level : Foundation

Course Content


      • Integration of commissioning activities into the project process.
      • Preparation of commissioning and start-up activities during the project steps. Available documentation, Interfaces with the different disciplines (equipment, inspection, instrumentation and control, suppliers, licensor...) of the engineering contractor according to the types of contract.
      • Start-up phases: pre-commissioning, commissioning and preparation for start-up, performance tests, provisional acceptance, mechanical guarantees, final acceptance. Hand over.
      • Breakdown of the project into systems and subsystems. Execution plan for commissioning and start-up.
      • Organization of the commissioning/start-up teams
      • Split of responsibilities between the owner and contractor, role of the operations.
      • Risks related to the auxiliary fluids and the introduction of hydrocarbons. Risk evolution between construction, commissioning and start-up.
      • Control of the risks related to modifications during the different phases.

      • Precommissioning activities: FAT/SAT, hydraulic tests and equipment cleaning, involvement of operations in the mechanical completion, punch-list classification, follow-up and close out.
      • Practical checks on construction standards: static equipment, instrumentation, utilities systems.
      • Standard precommissioning checks for rotating equipment.

      • Commissioning activities. Cleaning: chemical cleaning, flushing and blowing. Equipment drying and dynamic testing.
      • Preparation for the start-up of rotating equipment. Synchronization of control loops, and Programmable Logic Controller (PLC).

      • Pre-Start-up Safety Review (PSSR), start-up permit: checks required before oil-in. Leak tests, air removal, raw materials introduction.
      • Transition towards industrial production: performance tests, temporary and final acceptance, warranty period.

Learning Objectives

  • Upon completion of the course, participants will be able to:
  • plan the commissioning and start-up activities in the final phases of a project or a turn around,
  • conduct or delegate these activities while controlling the specific constraints related to these operations,

Ways & Means

  • Cases studies on the pre-commissioning, commissioning and start-up of typical units.
  • Actual incidents analysis selected according to the background of the participants.
  • Experience sharing and practical work on typical checklists used in the industry.