CD2 FLASH CYCLONE

Install New Stainless-Steel Flash Cyclone and Piping spools during the annual shutdown March 2019.

KEY FEATURES:
•Stainless Steel (304) Cyclone
•In effect a vessel with in a vessel, with complex internals requiring inspections.
•To hydro test Cyclone special cradles were built and used.
•Design called for 4 plates at the support of the vessel, PFS had a modified design approved using a large doubler plate at each support, which eliminated risk of distortion to vessel wall.
•Complex nozzles and manways were required

CHALLENGES:
• Removal of old and installing new Cyclone surrounded by process equipment, structure, platforms and piping. A whole mezzanine platform had to be removed and replaced.
•Design Scope to fabricate in 2 pieces. PFS made in one piece cutting down shut installation time significantly.
•Rigging done at night to minimize disruption to operations.
•Designed and fabricated nozzles did not fit existing piping. New spools were made to ensure proper fit.
•With all these challenges PFS still met OJI Target operational dates.