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 ガス化部会, 日本エネルギー学会 燃焼部会
会議名: 第53回石炭科学会議
回次: 53
開催地: 福山市生涯学習プラザ（広島県福山市）
開催日: 2016/10/26 - 2016/10/27
The leaching of trace elements in coal fly ash such as As, Se, and B is desired to be controlled. Development of suppression the leaching of the trace elements has been studied using paper sludge ash (PS) containing the high calcium content. When the high cacium content paper sludge ash (PS#3) was mixed to a coal fly ash by weight percentages of 20−25%, the leaching ratios of As, Se, and B was strongly decreased than the environmental regulation. To find a dominant chemical compound for the suppression of trace elements, effect of CaO and Ca(OH)2 were examined. Both calsium compound have effectively decreased the leaching of As, Se, and B. It found that PS#3 contained 8.2% CaO and 1.0% Ca(OH)2, which were the dominant compound for the suppression of trace elements.
