改質褐炭(UBC^【○!R】)プロセスの開発 Development of Upgraded Brown Coal (UBC^【○!R】) Process
Generally speaking, it is difficult to use a low rank coal due to its lower heat value. However, the low rank coal can turn into a useful fuel, if it is economically dewatered and upgraded to have a higher calorific value. Besides, some of the low rank coals have characteristics of a low sulfur content and a low ash content, which are favorable for a fuel. After operations of a pilot plant （capacity of 3 t/h） as well as a demonstration plant （capacity of 600 t/h） in Indonesia, Kobe Steel has successfully developed the UBC<sup>®</sup> （Upgraded Brown Coal） process under a support of the Japanese government, which can efficiently upgrade some low rank coals. Based on data that were collected during the operations, Kobe Steel began a feasibility study of a future commercial plant.
粉体工学会誌 48(11), 778-784, 2011-11-10