BOC Dandenong Cold Box Refurbishment

BOC Dandenong Cold Box Refurbishment

A crew of 25 was mobilised to the BOC Dandenong Liquid Natural Gas plant to remove and replace 38 Tonnes of rock wool in the plant’s Cold Box.

BOC Dandenong
Dandenong, Melbourne, Australia

The work scopes for this project included:

  • Removal of the existing Rockwool in the cold and metering boxes
  • Provision of a crew to carry out confined space hole watch and rescue if required
  • Assist with pressure testing of all internal heat exchangers and pipeline circuits
  • Installation of new Rockwool During the removal phase crews worked a 24 hour roster to enable a swift handover to operations for mechanical replacements.

Mick Harland and Craig Jones led the crews throughout the process which was all conducted manually.

10” chute unloading hoppers were engineered by CR’s Bankstown workshop to assist with the process. Unloading was completed safely, without any internal equipment damage, ahead of time, and under budget.

Arthur Denehy and Tia Campbell stayed on in Dandenong to assist with the mechanical scope. During the month long phase they managed all confined space entries and proved to be an invaluable asset when issues arose with other contractors following asbestos gaskets stopping work fronts. The guys recently completed asbestos training and worked with the client to remove all asbestos gaskets from flanges, keeping mechanical scopes on schedule. They also assisted with the pressure testing of all heat exchangers and pipeline circuits working alongside Cadell services.

One internal heat exchanger was found to be leaking during the pressure test phase and due to the long lead time to engineer another; an extra man way was cut in the Cold Box. This will allow for its removal at a later date, without the need for all wool to be removed. Reloading of new Rockwool was also completed ahead of schedule with the plant handed back over to operations three days earlier than predicted.

Comments from the client on project completion included:

“The planning process was very detailed with well documented procedures and safety assessments. This was then translated to the project which was managed with clear levels of responsibility and high levels of communication. A highly motivated and professional team.

I look forward to working with CR again sometime in the near future.”

Thanks go to all the crew members involved in achieving such a successful result.

The full article and others can be found in the Catalyst magazine, issue 16 - January 2013.

[September 2012]