主催: 日本エネルギー学会 石炭科学部会, 日本エネルギー学会 コークス工学研究部会
共催: 日本学術振興会 石炭・炭素資源利用技術第148委員会, 化学工学会 エネルギー部会, 日本エネルギー学会 重質油部会
後援: 東北大学
会議名: 第51回石炭科学会議
回次: 51
開催地: 東北大学工学部 青葉記念会館
開催日: 2014/10/22 - 2014/10/23
Volatile-char interaction (VCI) during coal pyrolysis is attractive for decreasing of tar. In the present study, we developed a novel circulating fluidized bed reactor (CFB) that consisted of bubbling bed type pylolyzer and combuster. Raw coal was fed at about 0.4 g/min to the pyrolyzer, and the gases, tar, and char are formed by pyrolysis. Resultant char was circulated to the combuster with bed material, and then combusted completely or partially. During the partial combustion, char was recycled to the pyrolyzer to enhance VCI. The heavy and light tar yields were decreased with char recycling, and the composition of heavy tar remained after the VCI was slightly changed.
