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Maintenance of Columns:

Column & tower refer to an essential equipment used for various separation processes.

The main types of columns used in oil refineries and petrochemical industries:

1. Distillation columns

2. Fractionating columns

3. Stripping columns.

Hurdles during operation:

Sometimes during heavy operation, the internal elements of the columns & towers tends to deform and loosen out of their position, due to which proper separation of process chemicals weakens leading to a trimmed production volume for which removal and replacement of the internal elements are must. Schedule overhauling and maintenance is planned which ultimately contribute to intensify and escalate the performance of the equipment.


What we offer:
  • Complete Installation of Column Internals: End-to-end setup of all internal components.
  • Column and Tower Inspection: Detailed evaluation to assess condition and performance.
  • Removal of Column and Tower Internals: Safe extraction of existing components for maintenance or replacement.
  • Cleaning of Column and Tower Internals: Thorough cleaning to ensure operational efficiency and prevent contamination.
  • Internal Repairs to Columns and Towers: Repair of damaged internals and structural components.
  • Installation of All Types of Column and Tower Internals: Including structured packing, random packing, trays, and downcomers.
  • Confined Space Scaffolding Erection and Dismantling: Safe access solutions for work in restricted environments.
  • Column and Tower Modifications: Custom modifications to suit process upgrades or design changes.
  • Column Nozzle Modification: Includes associated piping re-routing and replacement.
  • TSR Repair / Modifications: Maintenance and adjustments of Thermal Stress Relievers.
  • Laser Alignment of Column Tray: Precision alignment to ensure tray functionality and efficiency.
  • Complete Column / Tower Replacement: Full dismantling and replacement of column or tower units.

With a team of experienced people, we offer edge to edge service which includes proper understanding and estimating the overall job with real and proper planning, effective and healthy coordination with our end user which helps us to recognize the critical path and abating the overall duration of the job by reducing the repetition of work. All related requirements, such as column decontamination, scaffolding, welding, cold cutting, (including Diamond wire), on-site machining and lifting are handled too.

Few challenging jobs successfully completed:

1. Internal modification of all columns of ROCG (C2 complex) as a debottlenecking activity in Reliance Jamnagar in 2023.

2. Replacement of stripper column weighing 150 tons with all its associated piping and column internals at Nayara Energy in 2022.

3. Replacement of NCU unit stripper column weighing 60 tons with all its associated piping and nozzles at IOCL, Panipat Naphtha Cracker in 2022.

4. Cleaning of BD column as part of a surprise job during MRPL – Aromatic Complex Shutdown in September 2023.

5. Complete packing replacement of BD column at Reliance Industries Limited – Vadodara Manufacturing Unit within a record time of 6.5 days – blind-in to blind-out, against the client-estimated timeline of 9 days during the January 2024 emergency shutdown.