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, 重質油部会, ガス化部会, 燃焼部会
会議名: 第54回石炭科学会議
回次: 54
開催地: 秋田ビューホテル
開催日: 2017/10/18 - 2017/10/19
p. 96-97
Co-combustion of coal and woody biomass is one of the methods for reducing CO2 emissions at coal fired power plants. However, power consumption and differential pressure at mill rise by increase of biomass blending ratio. On the other hand, black pellet which is made by torrefaction or steam explosion have been attracted attention as a method to increase energetic density and improve grindability. In this study, grindability of biomass (white pellet, black pellet) and biomass mixed with coal are investigated by HGI test, semi-continuous HGI test, size distribution, shape. Black pellet has good grindability compared with white pellet. In addition, grindability changed depending on the torrefaction conditions and it was quantitatively grasped in various tests.
