No.67 高性能粘結材を利用したコークス製造技術における配合炭粒度の影響(熱分解・コークス素(3))

概要

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We participate in Japanese national project called COURSE50,in which we aim to apply HPC as a caking additive to make high strength coke for the blast furnace, which maximize the use of hydrogen as a reductant, in order to minimize carbon addition to the furnace. We aim to be able to produce a high-strength coke over 88 of drum index (DI^<150>_<15>) sing the HPC as caking additive and improve bulk density is obtained. In this study,we examined the effect of particle size of coal to the coke strength. Coke strength was strongly increased to nearly 90 of drum index by grain refining of coal, which had enough caking properties. On the other hand, the coke strength decreased by grain refining of coal, which had poor caking properties. It was understood that HPC affected to give suitable caking properties to achive more than 90 of DI even though the base coal blend had poor caking properties.
2012-10-15