Design of Transformer Oil Regeneration Plant

Market Sector: Sustainability and Environment | Client: Hydrodec Pty Ltd | Location: Young, NSW

Lycopodium was engaged by Hydrodec to design a process plant to regenerate used transformer oil back to better than its original state, based on a 1 tonne per day pilot plant developed by the CSIRO.

Lycopodium’s scope was to develop the necessary design to produce a plant capable of producing 24 tonnes per day of regenerated transformer oil.

The plant operates at a pressure of 40 bar and utilizes hydrogen and ammonia as inputs to the process.

The process involved:

  • hydrogenation of the input oil using a catalyst
  • neutralization of the acids produced with ammonia
  • separation of the light hydrocarbon produced during the hydrogenation
  • washing of the neutralized acids from the oil
  • separation of the wash waters from the oil.

The process allows high quality transformer oil, which was previously discarded as fuel oil after a single use, to be continuously reused.