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Title: 石炭炭化反応中のガス発生特性
Other Titles: Characteristics of Gas Evolution during Coal Carbonization
Authors: 松岡, 浩一1 Browse this author
川井, 仁2 Browse this author
熊谷, 剛彦3 Browse this author →KAKEN DB
千葉, 忠俊4 Browse this author
Authors(alt): Matsuoka, Koichi1
Kawai, Hitoshi2
Kumagai, Takehiko3
Chiba, Tadatoshi4
Keywords: coal
gas evolution
heating rate
Issue Date: 1-May-1996
Publisher: 日本鉄鋼協会
Journal Title: 鉄と鋼
Volume: 82
Issue: 5
Start Page: 383
End Page: 387
Publisher DOI: 10.2355/tetsutohagane1955.82.5_383
Abstract: Changes in mass with time due to gas evolution during carbonization were observed for particles and a cylindrical pellet of various coals heated respectively in a thermogravimetric balance and a microautoclave. The experiments were carried out for a range of the heating rate from 1 to 50K/min, the holding temperature from 673 to 823K and the nitrogen gas pressure of 0.1 and 1.0MPa. Effects of these operating variables on the gas evolution characteristics were experimentally examined. It was demonstrated that the gas evolution characteristics depend on the heating rate and the holding temperature as well as coal nature. Moreover, the total amount of gas evolved at a holding temperature was shown to be independent of the heating rate and to increase with the holding temperature. A simple reaction model is proposed for gas evolution which assumes coal to consist of two components having different reactivities for pyrolysis; one producing gas along with formation of semicoke via plastic intermediate and the other converting directly to gas. The model parameters were analyzed by fitting the model to the observed results and successfully utilized to explain observed results at different operating conditions.
Rights: 著作権は日本鉄鋼協会にある
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 熊谷 剛彦

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