石炭科学会議発表論文集
Online ISSN : 2423-8309
Print ISSN : 2423-8295
ISSN-L : 2423-8295
第38回石炭科学会議
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107.石炭の熱処理におけるアルカリ金属の動的挙動
軽石 健志菅原 勝康菅原 拓男遠田 幸生
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p. 433-436

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Release behavior of sodium and potassium was followed during pyrolysis of coals in a nitrogen stream up to 1200℃. Sodium and potassium in coal and char were classified into five fraction by a serial dissolution method with H_2O, CH_3COONH_4, HCl, H_2SO_4 and HF solutions. Fraction of H_2O soluble and CH_3COONH_4 soluble decreased, and fraction of H_2SO_4 soluble increased with heat treatments for both alkali metals. Characteristic change was observed for the fraction of each solvent soluble depending on the kind of coal and pyrolysis condition.

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© 2001 一般社団法人 日本エネルギー学会
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