Abstract
The Upgraded Brown Coal (UBC) Process is a new technology to convert low rank coal into transportable solid fuel with higher heat value without trouble of spontaneous combustion. UBC demonstration plant with the capacity of 3 ton/day had constructed in Indonesia and operated to acquire data for F/S. It had been carried out stable continuous operation of the plant using Indonesian low rank coal. The characteristics of spontaneous combustion of UBC product is suppressed compared with bituminous coal. As the results of the operation, it has been confirmed that the UBC process could be applied for Indonesian low lank coal on the operation of UBC demonstration plant.