Home >

news Help

Publication Information


Title
Japanese:No.40 石炭の60～80℃での空気による酸化速度の測定(熱分解・コークス(3)) 
English: 
Author
Japanese: 三浦 孝一, 藤墳 大裕, Wannapeera Janewit, Muangthong-on Trairat, 大垣 英明.  
English: 三浦 孝一, Hiroyasu Fujitsuka, Wannapeera Janewit, Muangthong-on Trairat, 大垣 英明.  
Language Japanese 
Journal/Book name
Japanese:石炭科学会議発表論文集 
English: 
Volume, Number, Page Vol. 52    No. 0    pp. 80-81
Published date Oct. 2015 
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 Low rank coals are susceptible to spontaneous combustion, but they must be heated over a critical temperature of around 70 ℃ before spontaneous combustion starts. This work focused on the adsorption of water vapor as a possible mechanism of the temperature increase up to the critical temperature. When the coals pre-dried and cooled to 38 ℃ were exposed to a saturated air at 38℃, the coal temperatures increased up to over 60℃ in a minute or so. This work showed that the rapid adsorption of water vapor will be a cause of temperature increase leading to the spontaneous combustion of low rank coals.

©2007 Tokyo Institute of Technology All rights reserved.