No.46 コークス配合炭熱間性状におよぼす粘結材添加の影響(熱分解・コークス(2))

概要

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Addition of a coal extract, HPC, affects to improve the thermoplasticity of a coal blend. We confirmed that the improvement of thermoplasticity of a coal blend was brought by increasing in the generation of mobile component, which was measured by the ^1H-NMR relaxation time measurement. In addition, we confirmed that the amount of mobile component was related with the thermal extraction yield of a coal blend. Therefore, it was considered that the thermal extraction yield was regarded as a scale parameter of the generation of mobile component, and was employed as an index to estimate the Gieseler maximum fluidity(MF)of a coal blend. The important factors to obtain a strong coke, total dilatation and optical anisotropic texture, were also improved with increasing in the MF value. Therefore, HPC additional rate on a coal blend is determined to be set in the optimum MF range as a function of the thermal extraction yield.
2010-09-21