No.47 溶剤抽出フラクショネーション法によるコークス原料炭および粘結材特性の評価(熱分解・コークス,その他)

概要

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It is important to develop technique to effectively utilize binders in the coke making process. To do so, detailed characterization of binders as well as coking coals is essential. Recently, we have presented a new coal fractionation method that can separate a bituminous coal into several fractions having different molecular mass compounds without decomposing coal. In this study the fractionation method was applied to coking coals and the binders(HPC; High Performance Caking additive)produced by Kobe Steel by utilizing the solvent extraction at around 400°C. It was clarified that the yield of the each fraction obtained from the binders was different among the parent coals, but the chemical and physical properties of each fraction were independent of the coal types. This was also the case with coking cials heated up to 400°C, and the properties of each fraction were similar to those of the binders. Based on the result, the coking behaviors of the mixture of coking coals and the binders were discussed focusing on the ratios of the fractions in the mixture.
2010-09-21