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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Densified coal ： ウィキペディア英語版 Densified coal Densified coal is the product of the Coldry Process coal upgrading technology that removes moisture from low-rank coals such as sub-bituminous and lignite/brown coal. The densification process raises the calorific value of low-rank coal to equal or exceed that of many export-grade black coals. Densified coal resulting from the Coldry Process is regarded as a black coal equivalent or replacement for black coal.〔Reactivity and Reactions of Australian brown coals. R.B. Johns and A.G. Pandolfo Dept Organic Chemistry, University of Melbourne. 1980〕 == Overview == Densified coal as an ostensibly ‘new’ product emanating from brown coal was first identified by Dr R.B. Johns and colleagues at the Organic Chemistry laboratory at Melbourne University following observations made at the Maddingley Mine near Bacchus Marsh, Victoria, Australia. The mine operator identified that hardened bitumen-like road surfaces formed naturally and spontaneously after heavy trucks churned up brown coal fines with moisture from rainfall when the trucks entered and left the mine. In the days that followed a rain event the road surfaces at the mine would harden like tarmac and no longer absorb water. Dr Johns and colleagues identified a process of low-mechanical shear had occurred where brown coal mixed with a small amount of moisture and subject to low-level mechanical shear had triggered a natural exothermic reaction process within the coal leading to the expulsion of its moisture content.〔Johns, R.B., Chaffee, A.L., and Verheyen, T.V. International Conference Coal Science, Dusseldorf 1981〕 The process fundamentally alters the micro chemical bonds within the coal, naturally reducing moisture content to around 11 per cent; boosting calorific value over 5600 kcal/kg; and creating a new ‘densified coal’ product that is hydrophobic, no longer prone to spontaneous combustion, and readily transportable. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Densified coal」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.