HDS Pre Commission Chemical Clean

ProDecon® received an urgent enquiry from a UK oil refinery regarding a pre-commission chemical clean on their newly built Hydro-Desulphuriser due to failure of incumbent contractor. The work scope included:

  • SMR boiler including:
  • Steam Drum
  • Make Gas Boiler
  • Flu Gas Boiler
  • SMR compressor pipework
  • HDS Compressor pipework
  • HDS steam generator and
  • SRU boiler and associated pipework.
  • Oxygen line from burner to filter and filter to battery limit including N2 blow dry.

These are critical systems and cleaning to the highest standard allows for a safe and rapid start-up, supports vendor warranties and prolongs plant running time. Contaminants within the boiler/steam system can damage turbines and compressors. Recognition of oxygen’s reactivity demands stringent requirements for the cleanliness of equipment in oxygen service to avoid violent reactions.

ProDecon® pre-engineered individual chemical cleaning processes for each critical system taking into account temperature, pressure and flow rate requirements to meet targeted results based on system service. Materials of construction and manufacturer’s specifications were considered in chemical process selection.

ProDecon® provided all temporary piping and circulation pumps minimising the demand on the client. Quality control and monitoring was key to achieving acceptance criteria parameters for each process. Using on site chemical analysis ProDecon® monitored the control parameters to ensure system integrity and the success of the chemical cleaning.

All chemical effluent was handled by ProDecon® providing a full turnkey chemical cleaning service.

Customer Verified results

  • Fast reaction to provide technical and full-service hands-on solution
  • ProDecon® managed the entire administrative and physical effluent segregation, containment and disposal for the client
  • By continuous sampling and monitoring of each chemical cleaning process, the systems were chemical cleaned without further loss or damage
  • ProDecon® successfully achieved the high standard cleaning requirements for oxygen service equipment
  • ProDecon® worked closely with the refinery to make sure the works were delivered safely, efficiently, effectively and, in light of the circumstance and urgency, meeting a challenging schedule