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Our Technology

Our proprietary, best in class, technology re-refines used naphthenic transformer oil, both non-PCB and PCB-regulated, into sustainable, high quality SUPERFINE™ oils for re-use for original purpose.

In 1992, the Australia’s government-backed Commonwealth Scientific and Industrial Research Organisation (CSIRO) conducted research for the nation’s power industry to find a way to deconstruct the potential cancer-causing organic compounds, polychlorinated biphenyls (PCBs), from used naphthenic transformer oil. The result was nothing short of remarkable:

  • The hydrogenation process cleans and restores the hydrocarbon molecule;
  • An almost zero emission process (de minimis in the US) producing no hazardous waste products;
  • Industry-leading recovery rates (>99%), and good operating efficiency; and
  • A clean, consistent transformer oil product which is ‘as good if not better’ than new transformer oil, and meets all relevant industry standards for unused transformer oil.

The Hydrodec hydrogenation re-refining technology is a catalytic process. Used naphthenic oil is added into a recirculating hydrogen stream. Hydrodec’s patented hydrogen treatment mix is heated to a reaction temperature in a direct contact heater and this mix is passed down through a hydro-treating catalyst within the main reactor. This is where the refining occurs. The catalyst is a spectator to the reaction and is neither consumed nor wasted. The mix leaves the catalyst and the excess Hydrogen is separated and recirculated back to the beginning of the process for re-use. The refined oil is then quenched, water washed and de-watered to produce sustainable, high quality SUPERFINE™ oils for re-use for original purpose.

This is a re-refining process. It is not what is known as ‘regeneration’ or reclamation, which has been used in the electrical industry for years. To regenerate an oil involves passing the oil through a filtering media, such as Fullers Earth, to clean, filter and make it last longer. It results in an improvement in the quality of the oil, but does not return the oil to new quality. Refining oil, however, restores the molecular structure of the base oil molecules. Requiring moderate heat and pressure within the presence of a catalyst and hydrogen, refining is a hydro-treatment that removes acids, oxidation products and hetero atoms. Refining delivers a cleaner, longer-lasting better performing oil.

The Patented Hydrodec Hydrogenation Refining Process

The Patented Hydrodec Hydrogenation Refining Process