36.石炭の炭化挙動に及ぼす昇温速度の影響(II) : 炭化機構の検討

抄録

The thermal degradation mechanisms of Akabira and Miike coals were studied in atmospheres of nitrogen by thermogravimetry of two different heating rates (3℃ or 100℃/min) and properties of produced char were measured by ultimate analysis and IR. Amounts of THF solubles of produced char and their molecular distributions were also measured. When coal was degradated by 100℃/min of heating rate the structures of THF solubles produced by thermal degradation were similar to feed coal and they were maintained in produced char. Experimental results by 3℃/min of heating rate show however that THF solubles were decomposed more to gas and tar and also produced high condensed carbon materials.