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Title
Japanese:1-2-1 溶剤中および機械的加圧下の熱処理による低品位炭の高品位化(1-2 熱分解・石炭改質,Session 1 石炭・重質油等) 
English: 
Author
Japanese: 盧田 隆一, 藤墳 大裕, 岩瀬 一洋, 鄭 忠超, 山田 貢平, 三浦 孝一.  
English: 盧田 隆一, Hiroyasu Fujitsuka, 岩瀬 一洋, 鄭 忠超, 山田 貢平, 三浦 孝一.  
Language Japanese 
Journal/Book name
Japanese:日本エネルギー学会大会講演要旨集 
English: 
Volume, Number, Page Vol. 22    No. 0    pp. 8-9
Published date Aug. 2013 
Publisher
Japanese:一般社団法人 日本エネルギー学会 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Abstract The authors have recently proposed an upgrading method of low-rank coals in which low-rank coals are treated in a non-polar solvent at around 350℃ to produce upgraded coals containing a large amount of low-molecular-weight compounds with less oxygen content. In this study the solvent treatment method was applied to various types of low-grade carbonaceous resources such as biomass waste, peat, brown coal, and sub-bituminous coal. The method was effective for any of the low-grade resources, and the carbon contents of the upgraded products all converged on around 80% (daf). To further upgrade the coals, heat-treatments at around 400℃ under either mechanical or gaseous pressure were investigated. It was found that heat-treatment under mechanical pressure could alter the structural and thermal properties of a sub-bituminous coal (C: 79.6%-daf) to the properties which were close to coking coals'.

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