Electrical Engineering Ins�tute Nikola Tesla Koste Glavinica 8a, Belgrade, Serbia
Decontamination of PCB Contaminated Electrical Equipment Using INT Process for Simultaneous Dechlorination, Desulphurization and Regeneration of Mineral Insulating Oils
Implementation period: 2015-2018Location: Republic of Serbia, Power SectorTask: Eliminate PCB’s in RS acc. to NIPPCB’s in Electrical Equipment
C(PCB) = 50-500 mg/kg
C (PCB) >500 mg/kgStockholm ConventionPCB limited to 50 mg/kg in electrical equipment in serviceNew equipment and oils PCB free
Sources of PCB Contamination• Oil treatments (oil tanks, machines for oil
treatment)• Oil change and topping up (oil tanks, machines
for oil treatment)• Repair of transformers (TR workshops and
factories, oil tanks)Section 1 Section 2 Section 3 Section 4 Section 5
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INT patented technology (RS 53510) for Simultaneous Oil Dechlorination, Desulphurization and Regeneration of Mineral Insulating Oils• Removal of PCB, Corrosive Sulphur
and Oil ageing products• Improved Oil properties after
treatment
PCB Decontamination Unit
Capacity: 1500 -2000 kg/day
PCB Conversion
0
100
200
300
400
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
oil batch
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C PCBo, ppm
C PCB fin., ppm
Results of PCB Decontamination
Process flow
On Site Laboratory PCB BDV DDF IFT
CONCLUSION• INT process is efficient in the removal of PCB,
corrosive sulphur and ageing products from mineral insulating oils
• After treatment Oils and transformers have “extended life” and improved properties for further use
• INT process can be used for treatment of mineral oils and equipment after “end of life” (waste treatment)
J. Lukić*, J. Janković, D. Mihajlović, V. Vasović, S. Milosavljević
*[email protected], +381648259711
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