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, 日本エネルギー学会 エネルギー学部会
会議名: 第52回石炭科学会議
回次: 52
開催地: 伊勢市観光文化会館（三重県伊勢市）
開催日: 2015/10/28 - 2015/10/29
The integrated coal Gasification Combined Cycle (IGCC) has been received a lot of attention because of its higher thermal efficiency than conventional coal-fired power generation systems. To increase thermal efficiency of IGCC systems, triple-bed combined circulating fluidized bed gasifier has been developed. In this reactor, coal pyrolysis occurs with high-temperature heat medium particles in a downer pyrolyzer. In pyrolysis, heat transfer and contacting the heat medium particles with the coal is very important to determine product distribution and reaction kinetics. In this study, we have developed a novel co-current downer pyrolyzer, which can directly contact coal particles with heat medium particles heated in about 900 ℃ using a fluidized bed preheater. We carried out pyrolysis of Loy Yang brown coal and measured gas, tar, char yeilds in the downer reactor by changing feed rate of silica sand (heat medium particles).
