To Enhance Production and Environmental Performances, Vale Officially Operates Electric Boiler One Hundred Percent

About Vale

6/23/2019

To Enhance Production and Environmental Performances, Vale Officially Operates Electric Boiler One Hundred Percent

To Enhance Production and Environmental Performances, Vale Officially Operates Electric Boiler One Hundred Percent

The red book of New Electric Boiler was handed over at the Utilities Conference Room on May 23 by the Manpower and Transmigration Office of South Sulewasi Province to PT Vale through the Department of Engineering, Maintenance & Utilities, marking the official operation of the electric boiler.

During their three-day visit, the 5-people team of the Manpower and Transmigration Office of South Sulawesi Province and some attendants, led by the head of the Office Agustinus Appang, were checking the performance of the electric boiler and inspected the B&W boiler to assess its remaining lifespan.

The red book was symbolically received by Abu Ashar, the Manager of PT Vale's Engineering, Maintenance & Utilities Department, who was accompanied by leaders of other departments. The occasion was also witnessed by the teams from the Ministry of Energy and Mineral Resources, from Sucofindo as the service provider on Occupational Health and Safety (OHS) for Steam Boiler and Pressure Vessel, and from Depriwangga as the service provider on checking and testing the boiler.

The electric boiler was installed in early February 2019. Its operation uses electricity from the PT Vale’s hydropower plants (PLTAs). This boiler replaced the previous model which was powered by HSFO (high sulfur fuel oil).

By using electricity generated from PT Vale’s own power plants, the boiler operation is zero emissions,

Zainuddin _ Mechanical and Civil Process Plant & Utilities Engineering Supervisor and Project Manager

"By using electricity generated from PT Vale’s own power plants, the boiler operation is zero emissions," said Mechanical and Civil Process Plant & Utilities Engineering Supervisor and Project Manager Zainuddin. In addition, the performance of the boiler is also more efficient and able to save operational costs significantly.

Boiler is one of the crucial devices in PT Vale's nickel production process. The steam produced by this device is used for the atomization process in the rotary dryer burner and reduction kiln, heating the sulfur used in the reduction kiln process and also for heating the fuel pipe.

The Profile of Electric Boiler of PT Vale

  • Average steam production: 11.37 ton/hour.
  • Projected duration of operation: 8,424 hours/year.
  • The cost of steam production using the electric boiler: US$1.63/ton steam.hr.
  • PLTA’s electricity production cost: US$2.45/MWh.
  • Boiler’s electricity consumption: 0.67 MWh/ton steam.hr.
  • Able to save steam production cost at US$5,029,933* per year or equal to Rp70,419,060,785 per year (exchange rate: Rp14,000/US$).
  • The cost of steam production using the previous boiler: US$54.15/ton steam.hr
  • Eliminating the use of HSFO fuel: 67.047 barrels per year. (the price of HSFO was US$77.35 per barrel, in December 2018).


To Enhance Production and Environmental Performances, Vale Officially Operates Electric Boiler One Hundred Percent