Columns, Trays & Process Towers

Scope Overview

Comprehensive turnaround overhaul for refinery fractionation columns, vacuum towers, and process strippers. Our crews execute internal tray revamps and packing replacements under strict critical-path shutdown schedules.

Documented Scope Activities

• Unit isolation, positive blinding, and safe manway opening
• Opening of tray man-ways, dismantling valve/sieve trays, and packing unloading
• Internal column shell scraping, grit cleaning, and washing
• High-pressure hydroblasting of trays, downcomers, and structural saddles
• Silpan test witnessing and internal QA/QC witness inspection
• Replacement and precision re-fixing of tray hardware and structured packings
• Systematic box-up of tray man-ways/packings, shell manway box-up, and de-blinding

Equipment & Systems Handled

• Crude Distillation Units (CDU)
• Vacuum Distillation Units (VDU)
• FCCU Main Fractionators
• Strippers, Absorbers & Packed Towers