褐炭改質プロセスの開発 : 大型実証プロジェクトの紹介(<特集>RGB 三部会[リサイクル・ガス化・バイオマス]合同シンポジウム-廃棄物,バイオマス,石炭等利用技術の最新動向-)

概要

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The UBC^[◯!R] (Upgraded Brown Coal) process has been successfully developed, in which at first moisture in pulverized brown coal is efficiently vaporized in hot oil, the coal is separated from the oil with a centrifugal machine, the coal is then heated in a dryer to further separate the oil adsorbed on its surface, and finally the fine dry coal is pressed without any binder to produce transportable solid fuel with a briquetting machine. After an operation of a pilot plant (3 t/day) constructed on Java Island in Indonesia, a demonstration plant (600 t/day) was constructed on Kalimantan Island in Indonesia, both of which were financially supported by the Japanese government. The operation of the demonstration plant was conducted between 2008 and 2011, of which the purposes were to demonstrate that a larger scale plant was successfully operated, to produce a suitable amount of the product for evaluation as fuel in a commercial thermal power plant with a coal furnace, and to obtain requisite data for more precise feasibility study. Eventually the demonstration project was completed with success and based on the data that were collected during the project Kobe Steel has begun a study of a future commercial plant with partners which will have an initial capacity of 1,500,000 metric tons of the product per year.
2012-12-20