The Upgraded Brown Coal (UBC) process is a new technology to convert low rank coal into transportable solid fuel with higher calorific value without trouble of spontaneous combustion. A pilot plant with a capacity of 3 ton/day had been constructed on Java Island in Indonesia and operated to acquire data for feasibility study. Stable continuous operation of the plant had been demonstrated using Indonesian low rank coal. The spontaneous combustion of the UBC product is suppressed compared with bituminous coal. Based on the results of the operation, a demonstration plant with a capacity of 600 ton/day is currently being constructed on Kalimantan Island in Indonesia. The operation of the demonstration plant will begin in 2008.
