1-08　Effect of Coal Fluidity on Strength of Coke Made by Sequence of Pulverization, Hot Briquetting and Carbonization

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  • 1-08　石炭の流動性が微粉砕-熱間成型-炭化法によるコークスの強度に及ぼす影響

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<p>To investigate the effect of the coal fluidity on the strength of the coke made by a sequence of pulverization, hot briquetting and carbonization, the strength of coke produced from the 5 different coals with the common logarithm of the maximum fluidity (logMF) ranging from 0 to 1.61 was measured. With the increase in MF, the coke strength increased and reached a maximum peak at logMF=0.78, then decreased significantly. Based on the scanning electron microscopic observation, the coke produced from the coal with logMF=0.78 had a dense structure in comparison to the coke made from the coal with logMF=1.52. The porous structure of the coke made from the coal with logMF=1.52 was estimated to be due to the excessive foaming during the coal plasticity.</p>

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